CN110313927A - A kind of x-ray imaging device and its three-D imaging method - Google Patents
A kind of x-ray imaging device and its three-D imaging method Download PDFInfo
- Publication number
- CN110313927A CN110313927A CN201910520172.4A CN201910520172A CN110313927A CN 110313927 A CN110313927 A CN 110313927A CN 201910520172 A CN201910520172 A CN 201910520172A CN 110313927 A CN110313927 A CN 110313927A
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- Prior art keywords
- ray
- ring
- fixed arm
- array ring
- arm
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4007—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4266—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4452—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being able to move relative to each other
Abstract
The invention discloses a kind of x-ray imaging device and its three-D imaging methods, it is related to external technical field of imaging, motion artifacts can be introduced by solving collected projected image in the prior art, result in the reduction of image space resolution, the problem of to influence the picture quality after three-dimensional reconstruction, comprising: moveable rack；The X-ray array ring of fixing assembling on the rack, X-ray array ring offer closed opening；It is slidedly assemblied in the X-ray detection ring of X-ray array ring side；The pulley being securely fitted on X-ray detection ring, and be securely fitted on X-ray array ring slide rail composition carriage, carriage be used on X-ray array ring side slide X-ray detection ring, to close or open opening；To which image spatial resolution caused by collected projected image introducing motion artifacts will not be made to reduce, the picture quality after improving imaging object three-dimensional reconstruction.
Description
Technical field
The present invention relates to external technical field of imaging more particularly to a kind of x-ray imaging devices and its three-D imaging method.
Background technique
In the field being imaged in vitro, the intracorporal organ of people, bone, blood vessel, soft tissue etc. are carried out commonly using X-ray
Scanning imagery, so that the perspective and three-dimensional imaging of human body are realized, currently, there is x-ray imaging device that can emit X-ray to human body
It is scanned.
X-ray imaging device in the market and in hospital, is mostly C-arm X-ray production apparatus, and C-arm X-ray production apparatus mainly forms
As follows: an x-ray source bulb, an X-ray flat panel detector, C-arm and rack, x-ray source bulb, X-ray plate are visited
The both ends that device is separately mounted to C-arm rack are surveyed, C-arm rack is mounted on the rack；In use C-arm X-ray production apparatus to human body
When being scanned, one end of C-arm installation x-ray source bulb is placed under operating table, in the position for adjusting C-arm X-ray production apparatus
It postpones, moves C-arm along fixed guide rail, while the x-ray source for controlling the transmitting of x-ray source bulb persistently exposes, X-ray is flat
Partitioned detector acquisition penetrates the X-ray attenuation image of patient's imaging region from different perspectives, then according to the projection of different angle
Image reconstruction goes out 3-D image.
But due to C-arm X-ray production apparatus only with an x-ray source bulb as x-ray source, and in order to realize
Different angle carries out X-ray exposure, needs to control C-arm and moves along the rail, and C-arm movement at this time will lead to x-ray source and X
The shake of ray flat panel detector results in image space resolution so that collected projected image can introduce motion artifacts
Reduction, to influence the picture quality after three-dimensional reconstruction.
Summary of the invention
The main purpose of the present invention is to provide a kind of x-ray imaging device and its three-D imaging methods, it is intended to solve existing
There is collected projected image in technology that can introduce motion artifacts, the reduction of image space resolution is resulted in, to influence three-dimensional
The technical issues of picture quality after reconstruction.
To achieve the above object, first aspect present invention provides a kind of x-ray imaging device, comprising: moveable rack；
The X-ray array ring being securely fitted in the rack, the X-ray array ring offer closed opening, at it
Inside emits X-ray from different distribution angles；It is slidedly assemblied in the X-ray detection ring of the X-ray array ring side, the X
X-ray detection X ring is used to receive the X-ray that the X-ray array ring emits from different distribution angles；The X is securely fitted in penetrate
Line detects the pulley on ring, and the carriage for the slide rail composition being securely fitted on the X-ray array ring, described
Carriage is used to slide X-ray detection ring on the X-ray array ring side, so that the X-ray detection ring is in the X
The opening of ray array ring is slided, to close or open the opening.
Further, the X-ray array ring includes: the fixed arm being securely fitted in the rack, the fixed arm
It is C-shaped, and the notch of the fixed arm is the opening；The x-ray source being securely fitted on the inside of the fixed arm, it is different
The x-ray source of distribution angle is used to emit X-ray to different directions, and all x-ray sources constitute X-ray detection
Ring；Wherein, after the X-ray detection ring slides into predetermined position on the fixed arm, the both ends of the travelling arm with it is described
The both ends of fixed arm are overlapped or abut and formed " O " type annulus of closed state, and the X-ray array ring and the X-ray
The both ends of detection ring are overlapped or abut the ring for forming another closure.
Further, X-ray array ring angle of central angle in " C " type cross-wise direction of the fixed arm is greater than
Or it is equal to 180 °, and less than 360 °；The angle of X-ray detection ring central angle in " C " type cross-wise direction of the travelling arm
The angle of central angle is consistent in " C " type cross-wise direction of the fixed arm with the X-ray array ring for degree.
Further, the X-ray exit end for each x-ray source that the X-ray array ring includes is respectively mounted limited beam
Device module, to control effective search coverage of the X-ray in the X-ray detection ring of x-ray source injection.
Further, the x-ray source that the X-ray array ring includes is cold cathode X-ray bulb.
Further, the X-ray detection that the x-ray source and the X-ray detection ring that the X-ray array ring includes include
The angle of coverage of device module is consistent.
Second aspect of the present invention provides a kind of three-D imaging method of x-ray imaging device, is applied to any of the above-described institute
The x-ray imaging device stated, comprising: travelling arm is slided from fixed arm opening along slide rail, so that fixed arm and travelling arm
Overlapping, is C-shaped fixed arm and travelling arm integrally, to open the opening of X-ray array ring, will need the imaging object
After in the X-ray array ring, travelling arm is slided on fixed arm, so that fixed arm and travelling arm form " O " of closure
Type ring, to close the opening；All x-ray sources on X-ray array ring on starting fixed arm successively expose, from different rows
The x-ray source of cloth position emits for the X-ray across the imaging object；Use the X-ray detector in X-ray detection ring
Module receives X-ray array ring and emits from different distribution angles and pass through the X-ray to decay after the imaging object；X-ray is visited
After surveying the imaged object of X-ray that device module acquires each angle according to attenuation degree of the X-ray after the imaging object
The two-dimensional projection image of the corresponding imaging object；In conjunction with the two-dimension projection of the collected different angle of X-ray detection ring
3-D image as rebuilding the imaging object.
The present invention provides a kind of x-ray imaging device, and beneficial effect is: opening the opening of X-ray array ring
So that using X-ray detection ring seal X-ray array ring after needing the imaging object of three-dimensional imaging to be located in X-ray array ring
Opening, then i.e. can be used X-ray array circumferential direction different directions emit X-ray, be enable to have different angle simultaneously
X-ray pass through imaging object, after X-ray passes through imaging object, generate decaying, and received according to X-ray detection ring each
Different directions and after generating the X-ray of decaying, can make the X-Y scheme of the corresponding imaging object of X-ray of each angle
Picture can draw out the three-dimensional figure of imaging object after combining the two dimensional image of the corresponding imaging object of X-ray of each angle
Picture, and during closing the opening of X-ray array ring and carry out three-dimensional imaging to imaging object, without mobile X-ray battle array
Column ring and X-ray detection ring, therefore X-ray array ring and X-ray detection ring will not be shaken, and will not make collected
Image spatial resolution reduces caused by projected image introduces motion artifacts, thus after improving imaging object three-dimensional reconstruction
Picture quality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those skilled in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram under the opening opening state of x-ray imaging device of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram under the closure of openings state of x-ray imaging device of the embodiment of the present invention；
Fig. 3 is the schematic process flow diagram of the three-D imaging method of x-ray imaging device of the embodiment of the present invention.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, be a kind of x-ray imaging device, comprising: rack 1, X-ray array ring 2, X-ray detection ring 3 and
Carriage 4；Rack 1 is mobile open frame 1；X-ray array ring 2 is securely fitted in rack 1, and X-ray array ring 2 offers
Closed opening, for emitting X-ray from different distribution angles on the inside of it；X-ray detection ring 3 is slidedly assemblied in X-ray
2 side of array ring, X-ray detection ring 3 are used to receive the X-ray that X-ray array ring 2 emits from different distribution angles；Sliding dress
The fixing end and sliding end for setting 4 are respectively with 3 fixing assembling of X-ray array ring 2 and X-ray detection ring, and carriage 4 is in X
X-ray detection ring 3 is slided on 2 side of ray array ring, so that X-ray detection ring 3 is slided in the opening of X-ray array ring 2,
To close or open the opening of X-ray array ring 2.
X-ray array ring 2 includes: fixed arm 21 and x-ray source 22；Fixed arm 21 is securely fitted in rack 1, fixed arm
21 are C-shaped, and the notch of fixed arm 21 is the opening of X-ray array ring 2；X-ray source 22 is securely fitted in fixed arm 21
Inside, the x-ray source 22 of different distributions angle are used to emit X-ray to different directions, and all x-ray sources 22 constitute X-ray
Detect ring 3；Wherein, after the travelling arm 41 where X-ray detection ring slides into predetermined position on fixed arm 21, travelling arm 41
Both ends are overlapped with the both ends of fixed arm 21 or abut and formed " O " type annulus of closed state, and X-ray array ring 2 and X-ray
The both ends of detection ring 3 are overlapped or abut the ring for forming another closure.
Carriage 4 is the pulley being securely fitted on X-ray detection ring 3, and is securely fitted in X-ray array ring 2
On slide rail, in the present embodiment, X-ray detection ring 3 is fixed on travelling arm 41, and pulley is fixed on travelling arm 41,
Travelling arm 41 and slide rail are C-shaped, so that X-ray detection ring 3 is by pulley and slide rail on X-ray array side
Sliding, to open or close opening.
Wherein, after travelling arm 41 slides into predetermined position on fixed arm 21, both ends and the fixed arm 21 of travelling arm 41
Both ends are overlapped or abut and formed the o-ring of closed state, while the both ends of x-ray source 22 array and x-ray detector array 3
It is overlapped or abuts the ring for forming another closure.
Specifically, the angle of central angle in " C " type cross-wise direction of fixed arm 21 of X-ray array ring 2 is greater than or equal to
180 °, and less than 360 °；The angle Yu X-ray battle array of the central angle in " C " type cross-wise direction of travelling arm 41 of X-ray detection ring 3
The angle of the central angle in " C " type cross-wise direction of fixed arm 21 of column ring 2 is consistent；
When the angle of the central angle on the C-shaped cross section direction of fixed arm 21 of X-ray array ring 2 is equal to 180 °, travelling arm
After 41 slide into predetermined position on fixed arm 21, the both ends of travelling arm 41 are abutted with the both ends of fixed arm 21, form opening envelope
The detection ring of closed state, X-ray array ring 2 abut the ring to form another closure with the both ends of X-ray detection ring 3；When X-ray battle array
The angle of the central angle on the C-shaped cross section direction of fixed arm 21 of column ring 2 is greater than 180 °, and when less than 360 °, and travelling arm 41 is solid
After sliding into predetermined position in fixed arm 21, the both ends of travelling arm 41 are overlapped with the both ends of fixed arm 21, form closure of openings state
O-ring, X-ray array ring 2 is overlapped the ring to form another closure with the both ends of X-ray detection ring 3；In the present embodiment, X is penetrated
The angle of the central angle on the C-shaped cross section direction of fixed arm 21 of linear array ring 2 is 190 °.
In the present embodiment, the X-ray exit end for each x-ray source 22 that X-ray array ring 2 includes is respectively mounted limited
Beam device module, the X-ray that beam-defining clipper module can control the injection of x-ray source 22 survey effective search coverage of ring in X-ray spy, from
And prevent that effective search coverage of X-ray is excessive or too small and adversely affects to final imaging results.
In the present embodiment, each x-ray source 2222 that X-ray array ring 2 includes is cold cathode X-ray bulb,
Cold cathode X-ray bulb volume and power consumption are smaller, therefore can not only reduce the spatial volume that x-ray imaging device occupies,
And power consumption when x-ray imaging device starting can be reduced.
In the present embodiment, the X-ray detection that the x-ray source 22 and X-ray detection ring 3 that X-ray array ring 2 includes include
The angle of coverage of device module is consistent so that each x-ray source 22 project X-ray by corresponding X-ray detector into
Row receives, and receives unordered and adversely affects to final imaging to reduce X-ray.
Referring to Fig. 3, being penetrated the present embodiment provides a kind of three-D imaging method of x-ray imaging device applied to above-mentioned X
Ray imaging device, comprising: travelling arm S1, is slided from fixed arm opening along slide rail, so that fixed arm and travelling arm overlapping,
It is C-shaped fixed arm and travelling arm integrally, to open the opening of X-ray array ring, imaging object will needed to be located at X-ray
After in array ring, travelling arm is slided on fixed arm, so that fixed arm and travelling arm form " O " type ring of closure, is opened with closing
Mouthful；All x-ray sources on X-ray array ring on S2, starting fixed arm successively expose, the X-ray from different arrangement positions
Source emits for the X-ray across imaging object；S3, X-ray is received using the X-ray detector module in X-ray detection ring
Array ring emits from different distribution angles and passes through the X-ray to decay after imaging object；S4, X-ray detector module are penetrated according to X
Attenuation degree of the line after imaging object acquires the two dimension of corresponding imaging object after the imaged object of X-ray of each angle
Projected image；S5, in conjunction with the collected different angle of X-ray detection ring two-dimensional projection image reestablishment imaging object three-dimensional figure
Picture.
It should be noted that for the aforementioned method embodiment, describing for simplicity, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described, because according to
According to the present invention, certain steps can use other sequences or carry out simultaneously.Secondly, those skilled in the art should also know that,
The embodiments described in the specification are all preferred embodiments, and related actions and modules might not all be institute of the present invention
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
The above are the descriptions to a kind of x-ray imaging device provided by the present invention and its three-D imaging method, for this
The technical staff in field, thought according to an embodiment of the present invention have change in specific embodiments and applications
Place, to sum up, the contents of this specification are not to be construed as limiting the invention.
Claims (7)
1. a kind of x-ray imaging device characterized by comprising
Moveable rack；
The X-ray array ring being securely fitted in the rack, the X-ray array ring offer closed opening, are used for
Emit X-ray from different distribution angles on the inside of it；
It is slidedly assemblied in the X-ray detection ring of the X-ray array ring side, the X-ray detection ring is used for from different distributions
The X-ray of the transmitting of X-ray array ring described in angular acceptance；
The pulley being securely fitted on the X-ray detection ring, and the sliding being securely fitted on the X-ray array ring are led
The carriage of rail composition, the carriage are used to slide X-ray detection ring on the X-ray array ring side, so that
The X-ray detection ring is slided in the opening of the X-ray array ring, to close or open the opening.
2. x-ray imaging device according to claim 1, which is characterized in that
The X-ray array ring includes:
The fixed arm being securely fitted in the rack, the fixed arm are C-shaped, and the notch of the fixed arm is described
Opening；
The x-ray source of the x-ray source being securely fitted on the inside of the fixed arm, different distributions angle is used for different directions
Emit X-ray, all x-ray sources constitute X-ray detection ring；
Wherein, after the travelling arm where the X-ray detection ring slides into predetermined position on the fixed arm, the travelling arm
Both ends be overlapped or abut and formed " O " type annulus of closed state, and the X-ray array ring with the both ends of the fixed arm
The ring for forming another closure is overlapped or abutted with the both ends of the X-ray detection ring.
3. x-ray imaging device according to claim 2, which is characterized in that
The angle of X-ray array ring central angle in " C " type cross-wise direction of the fixed arm be greater than or equal to 180 °, and
Less than 360 °；
The X-ray detection ring angle of central angle and X-ray array ring in " C " type cross-wise direction of the travelling arm
The angle of central angle is consistent in " C " type cross-wise direction of the fixed arm.
4. x-ray imaging device according to claim 2, which is characterized in that
The X-ray exit end for each x-ray source that the X-ray array ring includes is mounted on beam-defining clipper module, to control X
Effective search coverage of the X-ray that radiographic source projects in the X-ray detection ring.
5. x-ray imaging device according to claim 1, which is characterized in that
The x-ray source that the X-ray array ring includes is cold cathode X-ray bulb.
6. x-ray imaging device according to claim 1, which is characterized in that
The covering for the X-ray detector module that the x-ray source and the X-ray detection ring that the X-ray array ring includes include
Angle is consistent.
7. a kind of three-D imaging method of x-ray imaging device is applied to the described in any item x-ray imagings of claim 1-7
Device characterized by comprising
Travelling arm is slided from fixed arm opening along slide rail, so that fixed arm and travelling arm overlapping, make fixed arm and sliding
Arm is integrally C-shaped, and to open the opening of X-ray array ring, the imaging object will needed to be located at the X-ray array ring
After interior, travelling arm is slided on fixed arm, so that fixed arm and travelling arm form " O " type ring of closure, to close the opening；
All x-ray sources on X-ray array ring on starting fixed arm successively expose, the x-ray source from different arrangement positions
Transmitting is for the X-ray across the imaging object；
X-ray array ring is received using the X-ray detector module in X-ray detection ring to emit and pass through from different distribution angles
The X-ray to decay after the imaging object；
X-ray detector module is passed through according to the X-ray that attenuation degree of the X-ray after the imaging object acquires each angle
The two-dimensional projection image of the corresponding imaging object after imaging object；
The 3-D image of the imaging object is rebuild in conjunction with the two-dimensional projection image of the collected different angle of X-ray detection ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520172.4A CN110313927A (en) | 2019-06-17 | 2019-06-17 | A kind of x-ray imaging device and its three-D imaging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520172.4A CN110313927A (en) | 2019-06-17 | 2019-06-17 | A kind of x-ray imaging device and its three-D imaging method |
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| CN110313927A true CN110313927A (en) | 2019-10-11 |
Family
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| CN201910520172.4A Pending CN110313927A (en) | 2019-06-17 | 2019-06-17 | A kind of x-ray imaging device and its three-D imaging method |
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