CN1839754B - Method for reducing radiation exposure of X-ray and data processing system - Google Patents
Method for reducing radiation exposure of X-ray and data processing system Download PDFInfo
- Publication number
- CN1839754B CN1839754B CN2006100683973A CN200610068397A CN1839754B CN 1839754 B CN1839754 B CN 1839754B CN 2006100683973 A CN2006100683973 A CN 2006100683973A CN 200610068397 A CN200610068397 A CN 200610068397A CN 1839754 B CN1839754 B CN 1839754B
- Authority
- CN
- China
- Prior art keywords
- image
- patient
- display
- imaging system
- area coverage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
A method and system reduce radiation exposure by panning and zooming a first image of a patient acquired by an x-ray imaging system rather than using continuous radiation fluoroscopy. A first image of a region of interest is initially acquired. Subsequently, the patient may be repositioned with respect to the imaging system or a component of the imaging system may be repositioned with respect to the patient. The first image may be automatically panned on a display in response to the repositioning. A collimator may be adjusted to select a coverage area of the collimator. The first image may beautomatically resized on the display based upon the size of the selected coverage area. An optimal imaging device parameter also may be selected based upon the selected coverage area. A second image may be acquired using the imaging system and automatically resized to substantially fill the display.
Description
The priority request of related application
The application is that its priority is partly applied for and required in the continuation of submitting on March 30th, 2005 according to the PCT/US05/10864 of 35U.S.C. ζ 120 joint clauses, latter's exercise question is " ExactVolume Imaging Involving Multiple Partial Scans ", lawyer's transaction proxy number is 2004P05290US01, and it is hereby expressly incorporated by reference in full.
Technical field
Present invention relates in general to imaging system.More specifically, the present invention relates to the method and system of the manage workflow of reduction patient's radiant exposure in the x-ray imaging process.
Background technology
The digital X-ray imaging system comprises C shape arm volume imagery system.In a medical matters operating process, can change X ray C shape arm and patient's position relative to one another.Typically, in the process that between diverse location, moves x-ray system with the work of a kind of fluoroscopy pattern with a pendulum position C shape arm correctly.
Fluoroscopy is a kind of technology of the observation in-vivo image that radiologist or medical and technical staff use in many diagnostic and radiotherapy process, with auxiliary diagnosis or treatment to the patient.More specifically, the radiologist can use fluoroscopy to obtain patient's real-time image.Can observe real-time image to assess with a monitor.
In a kind of x-ray imaging process of routine, the radiologist will use an x-ray imaging system to obtain patient's one first image.Then, the second position that will determine patient's position change to by fluoroscopy of radiologist.Obtain one second image in the described second position then.Yet can in the process that changes the position, make the patient be exposed to successive low dose radiation by fluoroscopy pattern operation x-ray imaging system.
Summary of the invention
A kind of method and system can reduce patient's radiant exposure in an x-ray imaging process.Can obtain one first image by a kind of x-ray imaging system.Then, can change a position component of patient and/or described imaging system relative to one another.Can on the basis that changes the position, automatically on a display, shake camera lens and show (pan) this first image in translation-angle ground up and down.Can select the area coverage of a collimator by regulating collimator.Can on the basis of the collimator area coverage of choosing, on display, automatically change first size of images.Can also on the basis of the area coverage of choosing, automatically select an imaging device parameter.Can use this x-ray imaging system to obtain one second image.Can automatically change second image to be full of display substantially.Relative position changes and therefore regulate first image by following the tracks of, and can need less fluoroscopic image or not need fluoroscopic image before picked-up second image.
In one embodiment, a kind of method reduces the radiant exposure of patient in the x-ray imaging process.Described method comprises that imaging system of use is obtained one first image in patient's a zone, parts of this imaging system change patient's position or this position component that relative patient changes imaging system relatively, and automatically shakes this first image of camera lens translation-angle ground demonstration up and down on the basis that changes the position on a display.This method can also comprise that this system of use obtains one second image in described zone.
In another embodiment, a kind of method reduces the radiant exposure of patient in the x-ray imaging process.Described method comprises uses an imaging system to obtain one first image in patient's a zone, parts of this imaging system change patient's position or this position component that relative patient changes imaging system relatively, select the selected radiation coverage of this imaging system long-pending, and on the long-pending basis of selected radiation coverage, on a display, automatically change this first size of images.This method can also comprise that this system of use obtains one second image in described zone.
In another embodiment, a kind of data handling system reduces the radiant exposure of patient in the x-ray imaging process.Described system comprises a display and a data processor that is connected with described display, described display can be operated one first image with a zone of show using the patient that an imaging system obtains, and described data processor is operable on the basis of mobile examinating couch or C shape arm and guides the shake camera lens of first image on display to show or the size change on translation-angle ground up and down.
In another embodiment, a kind of computer-readable media is provided, described media has the instruction that can carry out on a computer, and described instruction is stored on the described computer.Described instruction is included on the display one first image that shows a zone of using the patient that an imaging system obtains, and responds moving of an examinating couch or a C shape arm shake this first image of camera lens translation-angle ground demonstration up and down on display.Described instruction can also comprise that being adjusted in of area coverage that responds collimator changes first size of images on the display, and shows one second image in the described zone that this imaging system of use obtains after regulating area coverage on display.
The preferred implementation explanation one of ordinary skill in the art that illustrate from shown in the accompanying drawing and example ground will be understood that advantage of the present invention.As can be seen, described system and method can have other different embodiments, and its details can change aspect various.Therefore, accompanying drawing and explanation should be regarded as illustrative rather than restrictive.
Description of drawings
Will understand the present invention more fully from the following detailed description of carrying out with reference to accompanying drawing, accompanying drawing and explanation all are illustrative, and do not limit the present invention, wherein:
Fig. 1 is the example images of a region-of-interest;
Fig. 2 is an illustrative methods that reduces patient's radiant exposure in the x-ray imaging process;
Fig. 3 shakes camera lens to show the exemplary plot of first image that is obtained by this imaging system in translation-angle ground up and down automatically;
The exemplary plot of Fig. 4 image that to be auto zoom obtained by this imaging system;
Fig. 5 is an example data processing system that reduces patient's radiant exposure in the x-ray imaging process.
The specific embodiment
A kind of method and system can reduce the amount of radiation that the patient is exposed in a radiophotography process.Replace the continuous radiation fluoroscopy, described method and system is by automatically shaking camera lens first image reduction radiant exposure that translation-angle ground shows and convergent-divergent is obtained by an x-ray imaging system up and down.
This method and system relates to first image that obtains by a kind of x-ray imaging system.Therefore, patient and/or imaging system, perhaps imaging system parts can change the position relative to one another.Can automatically shake camera lens at whole display in response to the change of position and show first image in translation-angle ground up and down.
After this, can be adjusted to an area coverage of choosing to the area coverage of collimator.Can on display, automatically change first size of images or repair its shape based on the area coverage of choosing.In addition, can automatically select an imaging device parameter to improve the display quality of first image on the display based on the area coverage of choosing.Can use this x-ray imaging system to obtain one second image.Can automatically change second size of images to be full of display in fact.
Can obtain patient's internal image routinely by the imaging system such as the digital X-ray imaging system that comprises a C shape arm volume imagery system.A C shape arm imaging system has at the end 180 of C shape arm spends an opposed source and detector mutually.Can be along patient's the mobile C shape arm of axis (Z axle).Scheme as an alternative can be patient bed with respect to the translation of C shape arm.Also might rotate C shape arm around the Z axle.Can be designed to the x-ray source of C shape arm imaging system through volume X-radiation circular cone of projection of patient and detect by detector thereafter.
The C C-arm system C is used to produce the three-dimensional reconstruction of patient's body inner volume always.C shape arm imaging system depends on usually to distinguish between the angle of one 180 degree and adds the local circulation scanning on the coning angle on the single plane.The district typically reaches the scope of 200 degree between the child's hair twisted in a knot-childhood of local circulation scanning.Can use other imaging system.
Fig. 1 illustrate can be by that imaging system is obtained typical first image.First image in the illustrated example is a blood vessel.Can obtain additional image in the position that changes the patient with respect to imaging system or change the position of imaging system with respect to the patient after.Conventional method can require changing patient's position with respect to imaging system or changing in the process of position of imaging system imaging system with respect to the patient with a kind of fluoroscopic pattern work, next image is suitably changed the position of patient and/or imaging system.Yet the fluoroscopy art is exposed to successive low dose radiation to the patient in the process that changes the position.
Fig. 2 illustrates the flow chart that reduces a kind of method 100 of patient's radiant exposure in the x-ray imaging process.Method 100 can comprise obtain 102 1 first images, relative to one another change a position component of 104 1 patients or an imaging system, automatically shake camera lens and show 106 first images, regulate 108 1 collimators, automatically change 110 first size of images, automatically select 112 1 imaging device parameters, obtain 114 1 second images and automatically change 116 second size of images in translation-angle ground up and down.Method 100 can comprise additional, less, perhaps other action, for example do not move 106,108,110,112 and/or 116 one or more,
One first image in a zone of patient's concern inside can use an x-ray imaging system to obtain 102.Imaging system can comprise mobile or immobilized parts and/or one or more radiation source.For example, radiation source can be an end of C arm equipment movably.Imaging system and/or radiation source are positioned at a primary importance to patient's pendulum relatively.Described primary importance can comprise that the patient lies on the examinating couch, and examinating couch is not removable or removable with respect to imaging system.When patient's pendulum was positioned at primary importance, when for example lying on the examinating couch, a radiologist or other medical and technical staff can operate imaging system to obtain 102 patients' first image.Imaging system can show first image that obtains on an indicator screen, monitor or other display device.
After obtaining 102 first images, can change 104 patients' position to a second position with respect to described imaging system or its parts.For example medical and technical staff can move or change the lie position of an examinating couch thereon of patient.As an alternate scheme, the patient changes to a second position to an imaging system or its position component relatively.For example can be with respect to lying in the position that patient on the examinating couch changes the C shape arm or other the movable part of imaging system.In one embodiment, the movable part of imaging system comprises an x-ray radiation source.Also can adopt other position change of patient and/or imaging system.
With respect to one of imaging system pendulum position 104 patient or when putting position 104 imaging systems with respect to the patient, the current location that imaging system or the data processor that is associated with imaging system can be followed the tracks of between the parts of patient and imaging system concerns.
For example, imaging system or data processor can contain a figure in the memorizer seeing coordinate system in fact.Can put the position to the patient and can occupy an initial position for the patient at the coordinate system inner phase in the initial point and the imaging system of this coordinate system.When the imaging system, perhaps its parts, for example C shape arm when mobile, can refresh this imaging system or position component on described figure in described coordinate system.As alternative scheme, the patient can refresh patient's position when mobile on figure in described coordinate system.
In one embodiment, the source is in an end of C shape arm, imaging system can based on the pendulum position of C shape arm automatically follow the tracks of and/or the calculating source with respect to patient who has protected or patient bed position.As alternative scheme, imaging system can be implemented one or more pick off and detector to follow the tracks of the patient in described coordinate system, for example lie in a patient movement on the examinating couch, perhaps any of imaging system or its parts two aspects moves.
Pick off and detector can be positioned at that the patient goes up, on the examinating couch, on the imaging system, and/or on the parts of imaging system.In addition, pick off and detector can automatically be determined the initial pendulum position of patient with respect to imaging system.For example imaging system can be along lying in patient side on the examinating couch (bed side) or along the pendulum position, front portion (side) of examinating couch.Also can use other different modes of following the tracks of relative position between patient and the imaging system.
In the position that changes 104 imaging systems and/or patient, can on whole display, automatically shake camera lens translation-angle ground demonstration up and down 106 or move first image according to the position relationship change between the parts of patient and imaging system.Can automatically shake camera lens and show that 106 first images are with coupling on display or show the next image that can obtain by imaging system in translation-angle ground up and down.
In one embodiment, described imaging system is one and when obtaining image the patient is exposed to radiating x-ray imaging system.With this x-ray imaging system,, can automatically shake camera lens and show that 106 first images are to illustrate the position to patient's next radiant exposure in translation-angle ground up and down if use this x-ray imaging system to obtain another image.Therefore, show first image in translation-angle ground up and down by automatically shaking camera lens, no matter be in the process of putting the position or after pendulum position, display all is illustrated in will accept patient's region of anatomy that X-radiation next time discharges when x-ray imaging system obtains next image.
In other words, after a parts pendulum position of patient or imaging system, described method and system determines whether and will utilize the next image of this x-ray imaging system picked-up to obtain target area (patient's region-of-interest).Typically, when obtaining an image, an x-ray imaging system is exposed to radiation to the patient.If give the fixed pendulum position for one between patient and the imaging system, x-ray imaging system can not obtain an image of a region-of-interest, and so described method and system can be pointed out medical and technical staff.As a result, before obtaining next image and the patient being exposed to the radiation of another dosage, can further change the position of patient or imaging system, thereby the next image that is obtained will might comprise an image of region-of-interest more by medical and technical staff.Only discern suitable position with first image or in a less image interaction process that otherwise is used to put.
For example, if put patient's position too far or with respect to the patient position of imaging system is put too farly, can be automatically first image be shaken camera lens and show to such an extent that depart from display in translation-angle ground up and down with respect to imaging system.Show to such an extent that depart from display in translation-angle ground up and down if automatically first image is shaken camera lens, can on display, produce an arrow indication.The indication of described arrow shows that region-of-interest for example has a direction that parts move of x-ray radiation source with respect to display and imaging system or its parts.Can be by along direction of arrow mobile imaging system or its part, region-of-interest is moved back in the visual field on the display.
If in response to changing after the position automatically shakes camera lens translation-angle ground demonstration up and down, as seen first image remains on the display, and medical and technical staff can regulate 108 1 collimators.Collimator can have any amount of blade or regulate other parts of the direction of area coverage, covering shape and/or one or more radiation beam.For example, open one or more collimator blade can increase the area coverage of the radiation beam that the patient is exposed to, and closes the area coverage that one or more collimator blade can reduce the radiation beam that the patient is exposed to.
Regulate 108 collimators with after selecting an area coverage medical and technical staff, can on display, automatically change 110 first size of images.If close collimator and/or one or more collimator blade again, can be on display convergent-divergent or enlarge first image automatically to be full of screen.Scheme as an alternative is if more open collimator and/or one or more collimator blade can automatically shrink first image.110 first size of images can comprise just automatically shrinks first image if the exposure area coverage of the collimator of choosing reduces the exposure area coverage increase of the collimator that just automatically enlarges first image and choose if automatically change on display.
When regulating the area coverage of collimator, can automatically select 112 1 imaging device parameters based on the area coverage of choosing.Imaging device is a kind of image acquisition equipment.Automatically the imaging device parameter of Xuan Zeing is a kind of parameter or the setting that improves the video quality of the image that on the display of imaging device the area coverage of choosing is shown.Automatically the imaging device parameter of selecting can draw " the best " or the ideal video quality near the image that shows on the imaging device.The image of automatically selecting imaging device to set can no longer to need medical and technical staff to see on display based on the area coverage of choosing and/or response manually selects an imaging device to set.
In one embodiment, imaging system can comprise a kind of detector as an imaging device job.Described detector can be that image strengthens detector or a flat-panel detector, and the two all has parameter and/or other variable of the image quality of the various given area coverages that are used to improve collimator.It is a kind of X-ray detector that described image strengthens detector, and wherein X ray produces electronics, by electric field quicken and focused electron to bombard a fluorescent screen.The photon that produces forms former X ray distribution enlarged drawing.On the other hand, flat-panel detector is a kind of digital detector, and described digital detector can obtain the radiogram of highly definite fluoroscopy figure.Can use alternate detector and imaging device.
Use image to strengthen detector, the imaging device parameter of selecting can comprise one " the best " ideal in other words image amplifier parameter of the quality of the image that raising shows based on area coverage or other variable of the collimator of choosing automatically.Scheme as an alternative, use a dull and stereotyped digital detector, automatically the imaging device parameter of Xuan Zeing can comprise one " the best " ideal in other words detector zooming parameter of the quality of the image that raising shows based on the area coverage of the collimator of choosing or other variable.Can automatically select other imaging device parameter.
In one embodiment, " pattern " of imaging device parameter control detection device.Described pattern notice detector to send to the image of imaging system yardstick, detector default characteristic and how from the original pixels composing images of detector.For example, can packed-pixel to produce an image big area, low resolution, perhaps can produce an image small size, high-resolution with pixel.
Can use described imaging system to obtain one second image of the interior zone of 114 patients concern.Imaging system can automatically change 116 second size of images to be full of display in fact.For example imaging system can enlarge and dwindle described second image based on the area coverage of the collimator of choosing.Imaging system can be used bilinear interpolation or other technology automatically to change second size of images to make the patient be exposed to radiating zone near being full of a part of display or display.
After automatically having changed second size of images, can on second image, stack an electronic shield.Described electronic shield for example can be the virtual diagram on current border of the area coverage of collimator.For example, the area coverage of collimator is can right and wrong orthogonal, has the Any shape that is associated with multi-diaphragm collimator, also can be orthogonal, thereby the border of described area coverage will be generally not consistent with orthogonal display screen.Described electronic shield can comprise overlay on the display vertically and/or the straight line of level with show area coverage vertically and/or the border of level.Can use other electronic shield.
Described method and system can reduce patient's radioactive exposure in the radiophotography process.The type of radiophotography process can many forms one of angiography, such as cerebral angiography, acra angiography, renal angiography, angiopneumography, lymphangiography, ventriculography of left ventricle and right ventriculography, coronarography, aorta vessel radiography, eye angiography and intracardiac catheter inspection.Additional, less or other angiography can be subjected to the support of described method and system.
Fig. 3 is that the exemplary camera lens that shakes automatically of first image that obtained by imaging system shows on translation-angle ground up and down.As shown in the left side among Fig. 3, can obtain one first internal image and then show this first internal image from an imaging system at display.In one embodiment, described imaging system is an x-ray imaging system, and described x-ray imaging system can comprise a detector, an x-ray source, a collimator, and a C shape arm.This imaging system can comprise additional, less or other parts.
At the image shown in the left side of Fig. 3 is the image of a blood vessel.Also can obtain the image of other project or body part.For example, region-of-interest can contain one or more tumor.Also have, region-of-interest, for example the blood vessel shown in can be associated with any zone of health, comprises heart, head, neck, abdomen, arm, lower limb, lung, kidney or other body region.
Use described x-ray imaging system, can protect (secure) radiation source after first image obtaining, thereby make and the patient was not exposed to radiation in the past up to obtaining second image.Therefore in the time of obtaining between first and second images of region-of-interest and/or in the process that changes the position, do not need to operate x-ray imaging system.
After obtaining first image, medical technologies personnel can change a position component of patient or imaging system relative to one another.For example, medical and technical staff can mobile patient lie thereon an examinating couch or move a detector on a C shape arm.Imaging system can be followed the tracks of the parts of imaging system and be changed with respect to described position component with respect to the change or the patient of patient position.For example, imaging system can the follow-up investigations bed with respect to an imaging system and/or a C shape arm move or C shape arm with respect to the patient and/or/the moving of examinating couch.Can follow the tracks of and monitor other position change.
The result is shown in the right side of Fig. 3, described imaging system is automatically shaken camera lens and is shown first image in translation-angle ground up and down on whole display, with on the basis of a position component that changes patient position and/or imaging system relative to one another, for example on the basis of moving patient bed, a C shape arm or other imaging system components, estimate the position of exposure next time.For rotatablely moving, can shake camera lens by the perspective of first image and show first image in translation-angle ground up and down, for example observe a two-dimensional surface with 3-d reproduction.Scheme as an alternative, first image are 3-d reproductions, and rotate this reproduction to shake camera lens translation-angle ground demonstration up and down.After the position component that changes patient and/or imaging system relative to one another, may preferably allow whole first image remain on the display visual.One remains on the display fully that the first visual image is the indication that whole region-of-interest will demonstrate in the next image of the region-of-interest that obtains by imaging system.
If the amount of change position makes the image of winning automatically depart from display and shakes camera lens translation-angle ground demonstration up and down, just can on display, demonstrate an arrow indication.The indication of this arrow can show that display and/or imaging system have changed the direction of position to region-of-interest relatively.Further change the position of imaging system or the rightabout of following the arrow further changes patient's position by the direction of following the arrow, perhaps in contrast, region-of-interest can drop in the area coverage of collimator again and first image can become again can be visual fully on display.
Fig. 4 illustrates based on a kind of collimator adjustment and automatically changes first size of images.After changing patient's position with respect to imaging system or changing the position of imaging system with respect to the patient, medical and technical staff can regulate the area coverage of collimator, for example by once or repeatedly regulating collimator blade or other collimator parts with the direction that changes the X-radiation bundle or change its size.First image that shows is convergent-divergent or enlarge and be full of display when reducing with the area coverage at collimator in fact automatically.On the other hand, first image that shows when the area coverage of collimator increases can automatically dwindle.
The area coverage that the example of Fig. 4 is illustrated in collimator enlarges first image to be full of display in fact when reducing.In an example shown, to demonstrate " collimator picture " white in other words straight line be orthogonal with the area coverage that collimator is shown and needn't directly be consistent with the display screen of proximate rectangle or other shape.In other words, white straight line is the virtual representation on the collimator border of physics.In the example of Fig. 4, the collimator picture is vertical straight line.Yet the collimator picture can be along the shape of any direction with the coupling collimator.Imaging system can be utilized the display area of collimator picture outside, i.e. the screen area of non-region-of-interest is to show information and instruction to medical and technical staff.
As mentioned above, imaging system can comprise a detector or other imaging device.Detector can be that image strengthens detector or a flat-panel detector, and its both has the various parameters of quality of the image that the given area coverage that is used to improve the collimation device shows or the setting of other variable.When the area coverage of collimator increased or reduces, imaging system was automatically selected to strengthen the ideal detector zoom degree that ideal image amplifier is set or is associated with digital detector that detector is associated with image.As a result, just can no longer need medical and technical staff manually to select one " the best " or ideal image amplifier to set or zoom degree based on the area coverage of choosing or other variable.
After regulating collimator, medical and technical staff can obtain next image.Imaging system can automatically change the next image (promptly being exposed to the anatomical regions of X ray) that next size of images makes region-of-interest and be full of screen in fact.
Fig. 5 illustrates an example data processor 410 that is configured to or is adapted for the part of imaging system.Data processor 410 comprises 420, memorizeies of a central processing unit (CPU) 432, depositing equipment 436, a data input equipment 438, and a display 440.Processor 410 can also comprise the outut device 442 of an outside, and the outut device of described outside can be a display, a monitor, a printer or a COM1.Processor can have additional, less or other parts.
In the process of the position that changes patient and/or imaging system relative to one another, data input device 438 or other input equipment can monitored patient and/or imaging system or its parts between relative position.In the process that changes the position, CPU 420 can be with respect to imaging system or its parts tracking patient's position.
By following the tracks of moving of patient and/or imaging system relative to one another, the current location between given patient and imaging system or its parts concerns that CPU 420 can determine will be exposed to radiating patient's zone when obtaining next image.In addition, in the process that changes the position, data processor 410 can automatically shake camera lens up and down translation-angle ground demonstration first image with respect to imaging system or imaging system with respect to patient movement according to the patient on whole display 440 or other output screen.
Then, can regulate the area coverage of collimator.In response to the adjusting of area coverage, data processor 410 can automatically change first size of images on display 440 or other screen.If area coverage increases, data processor 410 can reduce first size of images that is presented on display 440, outut device 442 or other outut device.If area coverage reduces, data processor 410 can increase by first size of images that is presented on display 440, outut device 442 or other outut device.
Although preferred implementation of the present invention has been described, is to be understood that the present invention is not limited thereto, and can depart from the present invention ground and change.Scope of the present invention is defined by appended claims, and all meanings that falls into claims in equipment, though be on the context or be equal to, all should be covered by among the present invention.
Therefore, it is illustrative rather than restrictive that above detailed description will be regarded as, and be to be understood that appended claims, comprises that all contexts are equal to just will define design of the present invention and category.
Claims (25)
1. method that reduces patient's radiant exposure in the x-ray imaging process, described method comprises:
Use a kind of imaging system to obtain one first image in patient's a zone;
Parts with respect to imaging system change patient's position or this position component that relative patient changes imaging system;
On the basis of the component locations that changes patient or imaging system, automatically on a display, shake camera lens and show described first image in translation-angle ground up and down, and
Use this imaging system to obtain one second image in described zone, and do not make the patient during reorientating, be exposed to continuous radiation.
2. method according to claim 1 comprises:
Regulate collimator to select a selecteed area coverage of this collimator; And
On the basis of the collimator area coverage of choosing, on display, automatically change described first size of images.
3. method according to claim 2 wherein changes described first size of images and comprises: if the area coverage of choosing reduces, just enlarges this first image on display; If the area coverage of perhaps choosing increases, just reduce or dwindle this first image.
4. method according to claim 1 comprises:
Regulate a collimator to choose the selecteed area coverage of this collimator; And
On the basis of the area coverage of the quality of described first image that shows on the raising display of choosing or described second image, automatically select an imaging device parameter.
5. method according to claim 4, wherein
Automatically select an imaging device parameter to comprise and automatically select an image amplifier parameter.
6. method according to claim 4 is wherein automatically selected an imaging device parameter to comprise and is automatically selected an ideal detector parameters.
7. method according to claim 1 comprises automatically changing described second image, makes described zone be full of display in fact.
8. method according to claim 7 comprises and uses the bilinear interpolation to change second size of images.
9. method according to claim 1, comprise: translation-angle ground demonstration up and down departs from display if first image shakes camera lens, just show an arrow indication on display, this arrow indication shows the direction in the zone of having moved with respect to display.
10. method according to claim 1 is wherein selected the radiating area coverage of choosing of imaging system; And
The virtual representation of the area coverage chosen of on display, drawing.
11. method according to claim 1 is comprising x-ray source of protection in the process of the described position component that changes patient or this imaging system.
12. a method that reduces patient's radiant exposure in the x-ray imaging process, described method comprises:
Use an imaging system to obtain one first image in patient's a zone;
Parts of this imaging system change patient's position or the position component that relative patient changes imaging system relatively;
Select a radiation coverage of choosing of this imaging system long-pending;
On a display, automatically change first size of images based on the area coverage of choosing; And
Use this imaging system to obtain one second image in described zone, and do not make the patient during reorientating, be exposed to continuous radiation.
13. method according to claim 12, wherein described first size of images of change comprises if the area coverage of choosing minimizing just enlarges this first image, if this first image is just dwindled in the area coverage increase of choosing on display.
14. method according to claim 12 comprises that automatically shaking camera lens based on the described position component change of patient or this imaging system on display shows this first image in translation-angle ground up and down.
15. method according to claim 14, comprise that translation-angle ground demonstration up and down departs from display if first image shakes camera lens, just show an arrow indication on display, this arrow indication shows the direction in the zone of having moved with respect to display.
16. method according to claim 12, the virtual representation of the area coverage that being included in draws on the display chooses.
17. method according to claim 12 comprises based on the area coverage of choosing and automatically selects an ideal imaging device parameter.
18. method according to claim 17 is wherein saidly automatically selected an ideal imaging device parameter to comprise automatically to select an ideal image amplifier parameter or an ideal detector parameters.
19. method according to claim 12 comprises and uses the bilinear interpolation automatically to change described second size of images, makes described zone be full of display in fact.
20. method according to claim 12 is included in x-ray source of protection in the process of the component locations that changes patient or imaging system.
21. a data handling system is used for reducing x-ray imaging process patient's radiant exposure, described system comprises:
A display can be operated one first image that utilizes the patient's that an x-ray imaging process obtains a zone with demonstration; And
A data processor that is connected with described display, described data processor can be operated with the shake camera lens of this first image of guide on the basis of mobile examinating couch or C shape arm on display and show or the size change on translation-angle ground up and down, and does not make the patient be exposed to continuous radiation during reorientating.
22. data handling system according to claim 21, wherein data processor changes this first size of images based on the adjusting of an area coverage of collimator.
23. data handling system according to claim 22, wherein after regulating described area coverage, display shows second image that utilizes the zone that described x-ray imaging process obtains, and data processor changes this second size of images to be full of described display in fact.
24. data handling system according to claim 22 if wherein area coverage reduces described data processor and just enlarges this first image, is just dwindled this first image if area coverage increases data processor.
25. data handling system according to claim 22, wherein said data processor is selected an ideal imaging device parameter based on the adjusting of area coverage.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55749404P | 2004-03-30 | 2004-03-30 | |
| PCT/US2005/010864 WO2005096945A1 (en) | 2004-03-30 | 2005-03-30 | Workflow improvement in imaging patients by x-ray radiation |
| WOPCT/US2005/010864 | 2005-03-30 | ||
| US11/237,556 US20060241370A1 (en) | 2005-03-30 | 2005-09-28 | Medical x-ray imaging workflow improvement |
| US11/237556 | 2005-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1839754A CN1839754A (en) | 2006-10-04 |
| CN1839754B true CN1839754B (en) | 2010-12-01 |
Family
ID=43242277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100683973A Active CN1839754B (en) | 2004-03-30 | 2006-03-30 | Method for reducing radiation exposure of X-ray and data processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1839754B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8396248B2 (en) * | 2008-09-16 | 2013-03-12 | Varian Medical Systems, Inc. | Sequential stereo imaging for estimating trajectory and monitoring target position |
| KR101666943B1 (en) * | 2013-06-11 | 2016-10-28 | 삼성전자주식회사 | The method and apparatus otaining a image related to region of interest of a target object |
| EP3784133B1 (en) | 2018-05-31 | 2024-05-15 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for controllinig an x-ray imaging device |
| CN109157235A (en) * | 2018-08-23 | 2019-01-08 | 上海联影医疗科技有限公司 | The control method of X-ray equipment and X-ray equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090401A (en) * | 1988-09-06 | 1992-02-25 | U.S. Philips Corporation | Method of positioning a patient arranged on a table top of a patient table, and apparatus for performing the method |
| CN1448112A (en) * | 2002-04-03 | 2003-10-15 | 株式会社东芝 | X-ray imaging device for shadow-reducing angiography |
| WO2003084380A2 (en) * | 2002-04-05 | 2003-10-16 | Vallee Jean-Noel | Real-time navigational aid system for radiography |
-
2006
- 2006-03-30 CN CN2006100683973A patent/CN1839754B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090401A (en) * | 1988-09-06 | 1992-02-25 | U.S. Philips Corporation | Method of positioning a patient arranged on a table top of a patient table, and apparatus for performing the method |
| CN1448112A (en) * | 2002-04-03 | 2003-10-15 | 株式会社东芝 | X-ray imaging device for shadow-reducing angiography |
| WO2003084380A2 (en) * | 2002-04-05 | 2003-10-16 | Vallee Jean-Noel | Real-time navigational aid system for radiography |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1839754A (en) | 2006-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7103136B2 (en) | Fluoroscopic tomosynthesis system and method | |
| US7761136B2 (en) | Medical image processing apparatus for scanning based on a set three-dimensional region of interest | |
| US8649480B2 (en) | X-ray CT apparatus and tomography method | |
| JP6438408B2 (en) | Information processing apparatus, information processing method, control apparatus, control system, control method, tomosynthesis imaging apparatus, X-ray imaging apparatus, image processing apparatus, image processing system, image processing method, and computer program | |
| US7697743B2 (en) | Methods and systems for prescribing parameters for tomosynthesis | |
| US7734007B2 (en) | X-ray imaging system for performing automated imaging of patient anatomy | |
| US10561383B2 (en) | Imaging system for imaging an elongated region of interest of an object | |
| CN104025119A (en) | Imaging system and method for use in surgical and interventional medical procedures | |
| US20080075225A1 (en) | Method for recording images of a definable region of an examination object using a computed tomography facility | |
| JP5305747B2 (en) | Radiation image capturing apparatus, driving method thereof, and program | |
| US20190187073A1 (en) | System and method for cabinet x-ray systems with camera | |
| JP5259283B2 (en) | X-ray diagnostic apparatus and image processing program thereof | |
| WO2010146483A1 (en) | Imaging procedure planning | |
| US20060241370A1 (en) | Medical x-ray imaging workflow improvement | |
| US20190269376A1 (en) | System and method for cabinet x-ray system with camera and x-ray images superimposition | |
| CN1839754B (en) | Method for reducing radiation exposure of X-ray and data processing system | |
| US11051778B2 (en) | X-ray fluoroscopic imaging apparatus | |
| JP6970203B2 (en) | Computed tomography and positioning of anatomical structures to be imaged | |
| US20070036266A1 (en) | Medical x-ray imaging workflow improvement | |
| JP5179788B2 (en) | MEDICAL IMAGE DIAGNOSIS DEVICE, ITS CONTROL METHOD, AND PROGRAM | |
| EP3579756B1 (en) | Iso-centering in c-arm computer tomography | |
| EP4162882A1 (en) | Computer-implemented method for positioning a patient for x-ray image recording | |
| JP2004033790A (en) | Mammography apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170220 Address after: Erlangen, Germany Patentee after: SIEMENS AG Address before: American Pennsylvania Patentee before: SIEMENS Medical Solutions |