CN102961157A - A system and method for controlling radiant quantity of x-rays emitted in a fluoroscopy system - Google Patents
A system and method for controlling radiant quantity of x-rays emitted in a fluoroscopy system Download PDFInfo
- Publication number
- CN102961157A CN102961157A CN2012100275382A CN201210027538A CN102961157A CN 102961157 A CN102961157 A CN 102961157A CN 2012100275382 A CN2012100275382 A CN 2012100275382A CN 201210027538 A CN201210027538 A CN 201210027538A CN 102961157 A CN102961157 A CN 102961157A
- Authority
- CN
- China
- Prior art keywords
- image
- pixel
- receiver
- ray
- shape arm
- 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.)
- Pending
Links
Images
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a system and method for controlling radiant quantity of X-rays emitted in a fluoroscopy system. The control is realized by the operations of obtaining image data of an inspected object through first and second X-ray apparatuses (19, 20) installed on a G-shaped arm (18) of a movable unit (1) for generating X-ray images on intersecting planes (P1, P2); sending the image data obtained through the movable unit (1) to a control unit (2); calculating an average value of all pixel valves of the received image for each received image; generating a control signal through the obtained average value; sending the control signal to senders (21, 23); and adjusting the radiant quantity of the emitted X-rays according to the control signal for enabling images captured by the image capture apparatuses to have optimized gray level, intensity level or color level.
Description
Technical field
The present invention relates generally to Medical movable Digital Scan Fluoroscope system, this system operates with two X-ray equipments that are mounted to produce radioscopic image in the plane of intersecting.Specifically, the present invention relates to control the x-ray radiation that each described X-ray equipment is launched in such fluoroscopy systems.
Background technology
In plastic surgery's environment, need fully to see field of operation, in order to can both control fully in each step.Therefore, usually employed is to use to comprise the C shape support of imaging system or the x-ray imaging of G shape support.
Symmetrical G shape support generally is better than C shape support, because it comprises two mutual vertically arranged x-ray imaging systems, therefore can carry out front and side x-ray imaging in situation about being fixedly installed.Can see that to face with side-looking field of operation has reduced the needs that move and adjust equipment at intra-operative simultaneously, therefore reduce operating time and radiation dose.When the needs of mobile device are reduced, also reached preferably aseptic condition.
G shape support can make the surgical visual field double also to cause accurate location to implant, sets up safer reliable surgical method.X-ray imaging system is adjustable with respect to patient's position, angle at intra-operative, thereby and between the intersecting plane of the radioscopic image that produces since on the G shape support X-ray equipment be fixedly installed the relation that keeps fixing.
For the apparent image of relative section of the object that obtains to be imaged, must optimize the x-ray radiation that is transmitted into the scenery that is imaged by transmitter.Here, the scenery that is imaged can comprise the part of the patient's who stands to perform the operation health usually.
The present sub-fraction of known each image of catching of G shape support system thinking is normally in a few pixels of picture centre, in order to determine the best amount of radiation that will launch.If for example comprising a nugget genus or having the part of highdensity certain other object of scenery described at the center of image by chance, according to such feedback, amount of radiation can sharply increase, thereby the image that causes catching only has black or at least very dark pixel, owing in image, do not have visible object, therefore be difficult to the interpretation image.
Illustrated fluoroscopy systems with the configuration of G shape support discloses a kind of Medical movable Digital Scan Fluoroscope system in the patent application WO 03/077762 of SwemacMedical Appliances AB, and this system operates with two X-ray equipments that produce radioscopic image in the plane of intersecting with being installed on the removable G shape support unit.This fluoroscopy systems also comprises a control device, and it has the high resolution monitor that shows resulting image and so that alternately produces the foot-propelled gauge tap of radioscopic image in respective planes.
The main application fields of illustrated G shape support system is the fracture surgery in WO 03/077762.Because this system is movably, it also can be used for essential registration and other application easy to use, such as neurosurgery, Pacemaker implantation, percutaneous lumbar intervertebral disc excision, bronchoscopy or foreign body location.
Summary of the invention
The objective of the invention is to improve the control of the x-ray radiation that the X ray transmitter of Medical movable Digital Scan Fluoroscope system is launched, this system operates with two X-ray equipments that produce radioscopic image in the plane of intersecting with being installed on the removable G shape support unit.By optimizing the x-ray radiation of launching, the scenery that is imaged that obtains or the image of object will be easier to interpretation.
The present invention relates to control the x-ray radiation that each X-ray equipment is launched in the Medical movable Digital Scan Fluoroscope system, this system operates with two X-ray equipments that are mounted to produce radioscopic image in the plane of intersecting.Described control realizes by following operation: with the view data that obtains to represent checked object on the G shape arm that is installed in movable units with the first and second X-ray equipments that produce radioscopic image in the plane of intersecting; To send control unit to from the view data that described movable units obtains; Meansigma methods for all pixel values of each this image that receives of the image calculation that receives; Produce control signal according to the meansigma methods of calculating; Send described control signal to transmitter; And the x-ray radiation of launching according to described control signal adjustment, so that so that the image that image capture device is caught has gray level, intensity level or the color level of optimization.
According to an example embodiment of the present invention, the meansigma methods of calculating is the moving average of the current image that receives and at least one previous image that receives.According to another embodiment, meansigma methods Average is calculated as follows:
Wherein, N is the number of used image in each mean value calculation, and n is the number of the pixel in each image, and pixel value of pixel
jThe pixel value that represents j pixel.
Description of drawings
Below with reference to accompanying drawings the present invention is further specified, in these accompanying drawings:
Fig. 1 shows the sketch map according to the example embodiment of the movable units of movable digital fluoroscopy systems of the present invention;
Fig. 2 A-2B shows the sketch map according to the example embodiment of the control unit of movable digital fluoroscopy systems of the present invention; And
Fig. 3 shows the block diagram according to exemplary method of the present invention.
The specific embodiment
The present invention relates to the illustrated system and method that is suitable for plastic surgery of Fig. 1 to 3.
According to a first aspect of the present invention, the movable digital fluoroscopy systems that provides comprises:
Movable units 1, described movable units 1 comprises:
G shape support with the G shape arm 18 that is suspended on the sole 7; And
Be installed in the plane P 1 that is used on the G shape arm 18 crossing, produce the first and second X-ray equipments 19 of radioscopic image in the P2,20, described the first X-ray equipment 19 has the first receiver 22 of the upper end that is installed in G shape arm 18 and relatively is installed in the first transmitter 21 on the G shape arm 18 with described the first receiver 22, and described the second X-ray equipment 20 has the second receiver 24 of the lower end that is installed in G shape arm 18 and relatively is installed in the second transmitter 23 on the G shape arm 18 with described the second receiver 24, wherein, described receiver 22,24 respectively comprise converting X-rays into image intensifier device and the image capture device of visual picture; And
The control unit 2 of communicating by letter and connecting with described movable units 1, described control unit 2 comprises: be used at least one display 202 of display image data, control panel 204, and the data processor 206 that comprises receiving the image processing apparatus of the image that the described image capture devices in the described receiver 22,24 transmit.
In addition, the image processing apparatus of this system also is used for the meansigma methods for all pixel values of each this image that receives of the image calculation that receives.Then the meansigma methods of calculating is used for producing the transmitter 21,23 that control signal sends movable units 1 to by data processor 206.
Specifically, this system comprises movable units 1 (seeing Fig. 1) so that the foot switch that the plane replaces and high resolution monitor (not shown).Movable units 1 (seeing Fig. 1) is included in two x-ray systems that operate in the crossing plane.Object normally stands the patient's that performs the operation health, is positioned in the movable units 1, so that the plane P 1 of two x-ray systems and plane P2 pass this object.The first X-ray equipment 19 comprises the first transmitter 21 (X-ray tube or X-tube) of launching X ray and receives first receiver 22 (for example image intensifier or semiconductor transducer) of the X ray that passes object that the first transmitter 21 launches.The first transmitter 21 can be arranged on the bottom of the G shape arm 18 of G shape support, and the first receiver 22 can be arranged on the top of G shape arm 18.The second X-ray equipment 20 comprises the second transmitter 23 (X-ray tube or X-tube) of launching X ray and receives second receiver 24 (for example image intensifier or semiconductor transducer) of the X ray that passes described object that the second transmitter 23 launches.
This system also comprises the control unit 2 shown in Fig. 2 A-2B, this control unit comprises at least one display 202, control panel 204 and the data processor 206 of display image data, and this data processor comprises the image processing apparatus of the image that is fit to receive described image capture device transmission included from described receiver 22,24.
According to an example embodiment, control unit 2 comprises two display 202, and suitable reception is respectively from the first and second X-ray equipments 19,20 image.
According to another example embodiment, control unit 2 comprises a display 202, be fit to receive from the first and second X-ray equipments 19,20 image, be presented at one at a time from the image that switches between the first and second X-ray equipments 19,20 images that receive.
According to another example embodiment, control unit 2 comprises a display 202, be fit to receive from the first and second X-ray equipments 19,20 image, shows simultaneously these images in the different piece of this display.
According to an example embodiment of the present invention, control unit 2 can also comprise the display 202 of Control-oriented panel 204.This display 202 can be by switching to show from the first and second X-ray equipments 19,20 images that receive or show simultaneously these images, but also can show information and the interaction options relevant with control panel to the user with the form of user interface.
The connection that intercoms mutually of movable units 1 and control unit 2 for example connects with cable or by radio signal transmission.
According to movable digital fluoroscopy systems of the present invention in many aspects with system class described in patent application WO 03/077762 seemingly, but also be equipped to the control to the x-ray radiation launched of system is improved, thereby so that the image of the scenery that is imaged or object is easier to interpretation.
According to an example embodiment, the objective of the invention is to be reached by Fig. 3 illustrated method, this method may further comprise the steps:
302: pass checked object with transmitter 21,23 emission X-radiations.
304 and 306: in receiver 22,24, receive the X-radiation of launching, and convert X-rays into visual picture with image intensifier device included in the receiver 22,24 and image capture device.
308: will send control unit 2 to from the view data that movable units 1 obtains.
According to example embodiment of the present invention, the view data that transmits is rendered as from two imaging devices video signal of ccd video camera for example.
310: be the meansigma methods of all pixel values of each this image that receives of the image calculation that receives.
According to an example embodiment, pixel value is represented as the brightness value of pixel.
Can be with any known method, for example secondary or arithmetic mean of instantaneous value calculate, and comprise alternatively using rectangular histogram or distributed intelligence, obtain the meansigma methods of the pixel value of all pixels in the image.
According to an example embodiment, the meansigma methods of calculating is the moving average of the current image that receives and at least one previous image that receives.The number of the previous image that receives that each calculating mean value is used can be for example 4.
According to other example embodiment, meansigma methods Average is calculated as follows:
Wherein, N is the number of used image in each mean value calculation, and n is the number of the pixel in each image, and pixel value of pixel
jThe pixel value that represents j pixel.
312: produce control signal according to the meansigma methods of calculating.
314: send described control signal to described transmitter 21,23.
316: adjust the x-ray radiation that transmitter 21,23 is launched according to described control signal.
Thus, realized feedback loop control, continuous control or the adjustment of the x-ray radiation that transmitter 21,23 is launched are provided, so that the image that described image capture device is caught has gray level, intensity level or the color level of optimization.By optimizing by this way the x-ray radiation launch, the image that is easy to interpretation of the scenery that can obtain to be imaged or object, wherein each to as if high-visible and recognizable.
By using a plurality of images in each mean value calculation, the deviation in the pixel value of the swing of imaging device, the impact of vibration or the image that receives just unlikely affects the value of control signal.Therefore, realized stable and reliable feedback adjusting.
Above-mentioned steps 302,304,306 and 316 is in movable units 1 interior execution, and step 310 and 312 is in control unit 2 interior execution, shown in the dotted line among Fig. 3.Step 308 and 314 relates to the transfer of data between two unit 1 and 2 in system.
Claims (8)
1. movable digital fluoroscopy systems comprises:
Movable units (1), described movable units (1) comprising:
I) has the G shape support of the G shape arm (18) that is suspended on the sole (7); And
Ii) be installed in the first and second X-ray equipments (19 on the G shape arm (18), 20), be used at crossing plane (P1, P2) produce radioscopic image in, described the first X-ray equipment (19) has first receiver (22) of the upper end that is installed in G shape arm (18) and relatively is installed in the first transmitter (21) on the G shape arm (18) with described the first receiver (22), and described the second X-ray equipment (20) has second receiver (24) of the lower end that is installed in G shape arm (18) and relatively is installed in the second transmitter (23) on the G shape arm (18) with described the second receiver (24), wherein, described receiver (22,24) respectively comprises converting X-rays into image intensifier device and the image capture device of visual picture; And
The control unit (2) of communicating by letter and connecting with described movable units (1), described control unit (2) comprising:
I) be used at least one display (202) of display image data;
Ii) control panel (204); And
Iii) data processor (206), this data processor (206) comprise receiving the image processing apparatus of the image of described image capture device transmission included from described receiver (22,24),
It is characterized in that:
Described image processing apparatus also is used for being the meansigma methods of all pixel values of each this image that receives of the image calculation that receives;
Described data processor (206) also comprises producing according to the meansigma methods of calculating the X-radiation control device of control signal;
Described control unit (2) also is used for sending described control signal to described transmitter (21,23); And
Described transmitter (21,23) also is used for the x-ray radiation launched according to described control signal adjustment, so that the image that described image capture device is caught has gray level, intensity level or the color level of optimization.
2. according to system claimed in claim 1, wherein, the meansigma methods of calculating is the moving average of the current image that receives and at least one previous image that receives.
3. according to system claimed in claim 2, wherein, described meansigma methods Average is calculated as follows:
Wherein, N is the number of used image in each mean value calculation, and n is the number of the pixel in each image, and pixel value of pixel
jThe pixel value that represents j pixel.
4. according to the described system of above arbitrary claim, wherein, described pixel value is represented as the brightness of pixel.
5. method that is controlled at the x-ray radiation of launching in the movable digital fluoroscopy systems, described method comprises the following steps:
With the first and second X-ray equipments (19,20) view data of the checked object of acquisition expression, the first and second X-ray equipments (19,20) be installed in the plane (P1 to intersect on the G shape arm of movable units (1), P2) produce radioscopic image in, described the first X-ray equipment (19) has first receiver (22) of the upper end that is installed in G shape arm (18) and relatively is installed in the first transmitter (21) on the G shape arm (18) with described the first receiver (22), and described the second X-ray equipment (20) has second receiver (24) of the lower end that is installed in G shape arm (18) and relatively is installed in the second transmitter (23) on the G shape arm (18) with described the second receiver (24), wherein, described receiver (22,24) respectively comprises converting X-rays into image intensifier device and the image capture device of visual picture;
To send control unit (2) to from the view data that described movable units (1) obtains;
Meansigma methods for all pixel values of each this image that receives of the image calculation that receives;
Produce control signal according to the meansigma methods of calculating;
Send described control signal to described transmitter (21,23); And
The x-ray radiation of launching according to described control signal adjustment is so that so that the image that described image capture device is caught has gray level, intensity level or the color level of optimization.
6. in accordance with the method for claim 5, wherein, the meansigma methods of calculating is the moving average of the current image that receives and at least one previous image that receives.
7. in accordance with the method for claim 6, wherein, described meansigma methods Average is calculated as follows:
Wherein, N is the number of used image in each mean value calculation, and n is the number of the pixel in each image, and pixel value if pixel
jThe pixel value that represents j pixel.
8. according to each described method among the claim 5-7, wherein, described pixel value is represented as the brightness of pixel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1150784 | 2011-08-30 | ||
| SE1150784-5 | 2011-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102961157A true CN102961157A (en) | 2013-03-13 |
Family
ID=47791787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100275382A Pending CN102961157A (en) | 2011-08-30 | 2012-02-08 | A system and method for controlling radiant quantity of x-rays emitted in a fluoroscopy system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102961157A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015076739A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin dual control gui |
| WO2015076743A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin flat detector signal synchronization |
| WO2015076742A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin flat detector architecture |
| JP2017217187A (en) * | 2016-06-07 | 2017-12-14 | 株式会社島津製作所 | Image display control apparatus and radiographic system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372870A (en) * | 2002-04-09 | 2002-10-09 | 张祥康 | Computerized 3D positioning equipment for X ray to target and its method |
| CN1642480A (en) * | 2002-03-19 | 2005-07-20 | 斯韦麦克医疗器材股份公司 | Device for displaying X-ray images of an object |
| CN1951331A (en) * | 2005-10-17 | 2007-04-25 | 株式会社日立医药 | X ray image diagnosis device |
-
2012
- 2012-02-08 CN CN2012100275382A patent/CN102961157A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642480A (en) * | 2002-03-19 | 2005-07-20 | 斯韦麦克医疗器材股份公司 | Device for displaying X-ray images of an object |
| CN1372870A (en) * | 2002-04-09 | 2002-10-09 | 张祥康 | Computerized 3D positioning equipment for X ray to target and its method |
| CN1951331A (en) * | 2005-10-17 | 2007-04-25 | 株式会社日立医药 | X ray image diagnosis device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015076739A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin dual control gui |
| WO2015076743A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin flat detector signal synchronization |
| WO2015076742A1 (en) * | 2013-11-19 | 2015-05-28 | Scanflex Healthcare AB | Flat panel x-ray imaging device - twin flat detector architecture |
| US10004469B2 (en) | 2013-11-19 | 2018-06-26 | Scanflex Healthcare AB | Flat panel X-ray imaging device—twin flat detector signal synchronization |
| US11457886B2 (en) | 2013-11-19 | 2022-10-04 | Scanflex Healthcare AB | Flat panel X-ray imaging device—twin flat detector architecture |
| JP2017217187A (en) * | 2016-06-07 | 2017-12-14 | 株式会社島津製作所 | Image display control apparatus and radiographic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8290118B2 (en) | X-ray imaging apparatus, method of controlling the same, and computer program | |
| JP3947707B2 (en) | Method and apparatus for acquiring and displaying computed tomographic images using a fluoroscopic imaging system | |
| US9398675B2 (en) | Mobile imaging apparatus | |
| CN102961157A (en) | A system and method for controlling radiant quantity of x-rays emitted in a fluoroscopy system | |
| US8406845B2 (en) | Method and apparatus for imaging tracking | |
| WO2013081041A1 (en) | Radiography system | |
| CN101953694B (en) | Medical and industrial X-ray real-time stereoscopic imaging device | |
| US20140016751A1 (en) | X-ray imaging apparatus, remote controller for x-ray imaging apparatus, and control method for x-ray imaging apparatus | |
| US20100246757A1 (en) | Wireless digital image detector | |
| KR20160045524A (en) | X-ray apparatus and method for scanning thereof | |
| KR102368907B1 (en) | X-ray Generator For Intraoral X-ray Photographing and System Comprising The Same | |
| CN105636496B (en) | Line of sight wireless endoscopy | |
| CN106580355A (en) | Positioning method and system | |
| JP6279760B2 (en) | Ultrasonic diagnostic system and operating method | |
| US10004469B2 (en) | Flat panel X-ray imaging device—twin flat detector signal synchronization | |
| WO2013046709A1 (en) | Radiograph display method and equipment | |
| CN109717957B (en) | Control system based on mixed reality | |
| EP3047800B1 (en) | Medical imaging apparatus and control method for the same | |
| US20160034031A1 (en) | Ultrasonic apparatus and method of controlling the same | |
| JP5837937B2 (en) | Radiation imaging system and radiation detection apparatus | |
| KR20140009915A (en) | X-ray imaging apparatus, remote controller for the x-ray imaging apparatus and method for controlling the x-ray imaging apparatus | |
| CN115281699A (en) | Dynamic tracking method and system based on biplane X-ray system | |
| US20160262712A1 (en) | X-ray paradoxical pulse bi-planar synchronous real-time imaging device and imaging method | |
| CN107753051B (en) | Medical imaging equipment | |
| CN202537517U (en) | Movable digital fluoroscopy system with X-ray image information optical transmission function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |