CN104068884B - A kind of instruction device and method for the installation alignment of PET CT frames - Google Patents
A kind of instruction device and method for the installation alignment of PET CT frames Download PDFInfo
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- 238000009434 installation Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
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- 238000012545 processing Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000002591 computed tomography Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013519 translation Methods 0.000 description 3
- 239000000700 radioactive tracer Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- 238000003754 machining Methods 0.000 description 1
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- 230000004796 pathophysiological change Effects 0.000 description 1
- 238000002600 positron emission tomography Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
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- A—HUMAN NECESSITIES
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis 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
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- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
- A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
- A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating thereof
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Abstract
The invention provides a kind of instruction device and method for the installation alignment of PET CT frames, methods described includes：CT centers are indicated that component and PET centers instruction component are respectively arranged on CT frames rotating part and PET frames；The laser of CT centers instruction component is used to indicate CT pivots to PET frames transmitting beam of laser, supporting point position before and after regulation PET frames, make first, second center tester on the laser alignment PET centers instruction component, now CT pivots are aligned with pet detector center.The present invention is simple in construction, easy to adjust, can eliminate the processing of CT center elements and the influence of alignment error, and alignment precision is high, ensures pet detector center and the axiality requirement of CT pivots installation.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of instruction dress for the installation alignment of PET-CT frames
Put and method.
Background technology
Computed tomography (Computed Tomography, CT) is mutually to tie electronic computer with X-ray examination
Closing, the difference using human body different tissues to X-ray transmission attenuation coefficient so that the ray signal that detector receives is different,
And the technology of human body fault image is reconstructed.Positron emission computed tomography (Positron Emission
Tomography, PET) it is a kind of using positron radionuclide as tracer, pass through intake of the lesions position to tracer and understand focus
Functional metabolism state, and then the technology of diagnosis is made to disease.
PET-CT is to organically combine PET and CT, using same examination couch and same image processing workstations,
PET image and CT images are formed into PET-CT fused images by image reconstruction integration technology, once imaging can reflect simultaneously
The pathophysiological change and morphosis of focus, realization have complementary advantages, and have sensitivity, accurate, specificity height and registration
The features such as.
Current PET-CT machines are both designed as the form that a PET machine and a CT machine are installed together, in order to realize PET
Image preferably merges with CT images, need to ensure PET frames and alignment of the CT frames along scan channel direction.In prior art
In, the alignment of two frames mainly has by pair when precision machining mating surface is to realize installation in PET frames and CT frames
Standard, such a mode largely improve difficulty of processing and manufacturing cost；Another alignment is by the ground
The support block simultaneously height of these support blocks of close adjustment and mutual alignment are installed, to ensure the PET frames being arranged in support block
With the alignment of CT frames, but such a calibration method is sufficiently complex, and required truing tool is expensive.
To overcome drawbacks described above, it is necessary to which offer is a kind of simple in construction, easy to adjust, and can ensure that PET is detected well
Device and the installation marking tools and method of the requirement of CT pivots axiality.
The content of the invention
The present invention solves the problems, such as to be to provide a kind of instruction device and method for the installation alignment of PET-CT frames, with reality
The alignment installation of CT and PET frames is now simply and easily carried out, and the processing of CT center elements and the influence of alignment error can be eliminated,
Alignment precision is improved, ensures pet detector center and the axiality of CT pivots installation.
Pacify to solve the above problems, technical solution of the present invention provides a kind of PET when being used for PET-CT assemblings with CT frames
The instruction device of alignment is filled, the instruction device includes CT centers instruction component and PET centers instruction component, CT centers instruction group
Part is installed on CT frame rotating parts, and PET centers instruction component is installed in PET frames, it is characterised in that：
CT centers indicate that component, including laser, four-dimensional adjustment platform, laser are fixed on four-dimensional adjustment platform.
PET centers indicate that component, including the first central plate, the second central plate, the first center tester and center two refer to
Show device, the first center tester is placed at the center of the first central plate, and the second center tester is placed in the center of the second central plate
Place.
Optionally, there is a focusing ring on the laser of the CT centers instruction component.
Optionally, the four-dimensional adjustment platform of CT centers instruction component has four adjusting knobs, can realize respectively along X-axis and
The translation of Y direction, and the rotation around X-axis and Y-axis.
Optionally, the first indicator of the PET centers instruction component and the second indicator are a circular hole, or are band cross
The indicator board of scale, or be the indicator board with concentric circular scale.
Optionally, the CT centers instruction component also includes being used for the supporting plate for supporting four-dimensional adjustment platform.
Optionally, the CT centers instruction component also includes being used to connect four-dimensional adjustment platform and the contiguous block of supporting plate.
Optionally, the CT centers instruction component also includes fixes sleeve, and laser is fixed on the four-dimension by fixes sleeve
Adjust on platform.
To solve the above problems, the present invention also provides a kind of method of PET-CT frames installation alignment, including：
The CT centers instruction component is installed on the interface that CT frames rotating part is reserved；
The PET centers instruction component is installed on the interface that PET frames are reserved；
The laser of CT centers instruction component launches beam of laser to PET frames direction；
Make the laser facula of the laser transmitting close to the first center tester position of PET centers instruction component
Put；
The adjusting knob of the four-dimensional adjustment platform of CT centers instruction component is adjusted, described in when rotating CT frames rotating part
Facula position is motionless, the pivot for making the hot spot be located at CT；
PET frame front positions are adjusted, the hot spot is directed at the first center of the first central plate of the PET frames and refers to
Show device；
Keep the position of first central plate motionless, make the hot spot reachable and close to the second of the PET frames
Second center tester position of central plate, PET frame back-end locations are adjusted, the hot spot is directed at the second center tester.
Optionally, when the laser facula of laser transmitting is close to the first center tester position, regulation swashs
The focusing of light device is changed, and the hot spot is reached minimum.
Optionally, the first center tester is the indicator board with cross scale or with concentric circular scale, keeps described first
Center Board position is motionless, removes first center tester, the hot spot is reached the second center instruction of the second central plate
Device position.
Compared with prior art, the PET-CT frames installation alignment instruction device and method that technical solution of the present invention provides,
It is simple in construction, it is easy to adjust, CT pivots and pet detector center are indicated respectively using double centers instruction component, and can be right
CT pivots are accurately confirmed, eliminate the processing of CT centers instruction component and the influence of alignment error, alignment precision is high, can
Ensure pet detector center and the axiality requirement of CT pivots installation well.
Brief description of the drawings
Fig. 1 is the exploded view of instruction component in CT centers of the present invention；
Fig. 2 is the left view of instruction component in CT centers of the present invention；
Fig. 3 is the schematic diagram of four-dimensional adjustment platform of the invention；
Fig. 4 is the schematic diagram that instruction component in CT centers of the present invention is arranged in CT frames；
Fig. 5 is the structural representation of instruction component in PET centers of the present invention；
Fig. 6 is the first, second center tester schematic diagram with cross scale；
Fig. 7 is the schematic diagram that instruction component in PET centers of the present invention is arranged in PET frames；
Frame regulation schematic diagram when Fig. 8 is PET alignments of the present invention；
Fig. 9 is overall structure diagram when PET of the present invention is aligned with CT frames；
Figure 10 is PET-CT frames installation alignment methods flow chart of the present invention.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, with reference to the accompanying drawings and examples
The embodiment of the present invention is described in detail.Obviously, described embodiment is only embodiment of the present invention
A part, rather than its whole.According to these embodiments, one of ordinary skill in the art is in the premise without creative work
Lower obtainable all other embodiment, belongs to protection scope of the present invention.
Shown in reference picture 1, Fig. 2 and Fig. 5, the PET-CT frames installation alignment instruction device indicates component 1 by CT centers
With PET centers instruction component 3 two parts composition, wherein CT centers instruction component 1 is used to indicate CT pivots, and PET centers refer to
Show that component 3 is used for the center for indicating pet detector.
Referring to figs. 1 to shown in Fig. 3, the CT centers instruction component 1 is four-dimensional by supporting plate 11, contiguous block 12, laser 13
Adjust the main parts size such as platform 14 and laser fixes sleeve 15 composition.The laser 13 passes through the laser fixes sleeve
15 are fixed on four-dimensional adjustment platform 14, have a focusing ring 131 on the laser 13, the focusing available for launched laser is adjusted
Section, the four-dimensional adjustment platform 14 have four adjusting knob 141-144, and adjusting knob 141 can realize four-dimensional adjustment platform 14 along X-axis side
To translation, adjusting knob 142 can realize translation of the four-dimensional adjustment platform 14 along Y direction, and adjusting knob 143 can realize four-dimensional tune
Whole 14 moving along X-direction, adjusting knob 144 can realize moving of the four-dimensional adjustment platform 14 along Y direction.Swash equipped with described
The four-dimensional adjustment platform 14 of light device 13 is fixed in supporting plate 11 by the contiguous block 12, and the four-dimensional adjustment platform passes through spiral shell
Nail 123, screw 124 are fixed on the reserved interface of the contiguous block 12, the contiguous block 12 for being fixed with four-dimensional adjustment platform 14
It is fixed on by screw 121, screw 122 in the supporting plate 11, the rear end of laser 13 may pass through at the center of supporting plate 11
Reserved circular hole 111.There are hole 112, hole 113, hole 114, hole 115 in the supporting plate 11, increasing this four holes not only can be with
Mitigate the weight of supporting plate 11, also may be such that supporting plate 11 is more convenient in installation and dismounting.
Certainly, the number in hole is not limited to four in above-described embodiment, hole 112, hole 113, the and of hole 114 in supporting plate 11
The shape in hole 115 is also not necessarily limited to the triangle shown in Fig. 1, and Fig. 1 is only illustrative the number for drawing this some holes, shape and position
Put, in other embodiments, those skilled in the art can also change the number and form in hole according to actual conditions, or even can not set
These perforates.
Shown in reference picture 5 and Fig. 6, the PET centers indicate component 3, including the first central plate 31, the second central plate 32,
First center tester 33 and the second center tester 34.First center tester 33 is located in first central plate 31
At the heart, second center tester 34 is located at the center of the second central plate 32.In the present embodiment, first center
Indicator 33, the second center tester 34 are the indicator board with cross scale, in other embodiments, band concentric circles also can be used
The indicator board of scale, it can also be the first central plate 31, an aperture at the center of the second central plate 32, those skilled in the art
Can be according to actual conditions using any object with indicative effect.
Shown in reference picture 4, Fig. 7, Fig. 8, Fig. 9 and Figure 10, the method and step of PET-CT frames installation alignment are as follows：
(1) the CT centers assembled instruction component 1 is installed on CT frame rotating parts, will the supporting plate 11
It is fixed on by screw 121, screw 122 on the reserved interface of CT frames rotating part 2, for indicating CT pivots, now institute
The laser for stating the transmitting of laser 13 is located at roughly the center of CT frames rotating part 2, and the laser 13 is launched a branch of to PET directions
Laser；
(2) PET centers instruction component 3 is installed on the reserved interface of PET frames 4, for indicating pet detector
Center；PET frames 4, which are moved to, to be needed on position to be mounted, is adjusted the position of the PET frames 4, is made the laser
The position of laser facula first center tester 33 on first central plate 31 of 13 transmittings, adjusts the laser 13
On focusing change 131, the hot spot on first central plate 31 is reached minimum；
(3) the CT frames rotating part 2 is moved with slow with one's hands slow-speed, if now the laser beam is not completely heavy with CT pivots
Close, then track of the hot spot on the first central plate 31 is a circle, then can be by adjusting the regulation on four-dimensional adjustment platform 14
Knob so that the facula position is motionless when CT frames rotating part 2 rotates, and now the hot spot is located on CT pivot；
(4) the mobile PET frames 4, the strong point 41 and the strong point 42 of the front end of adjustment PET frames 4, make the hot spot pair
Accurate first center tester 33；
(5) keep the position of first central plate 31 motionless, remove first center tester 33, make the laser
The laser facula that device 13 is launched is reachable and close to the position of the second center tester 34 on second central plate 32, adjusts institute
Focusing ring 131 is stated, the hot spot is reached minimum.The strong point 43, the height of the strong point 44 of the rear end of PET frames 4 are adjusted, makes institute
State hot spot and be directed at the second center tester 32.
It should be noted that before the strong point 43, the strong point 44 is adjusted, CT pivots can also be carried out true again
To recognize, operating method is identical with above-mentioned confirmation method, i.e., moves CT rotating parts with slow with one's hands slow-speed, if the laser spot position is motionless,
Show that now laser facula is still on CT pivots；If rail of the laser facula on rear center's plate when rotating CT rotating parts
Mark is circle, then needs to adjust the adjusting knob on four-dimensional adjustment platform 14 again so that the laser spot position is not when CT is rotated
It is dynamic.
It should be noted that position refers to very close to the second center when the laser reaches the second 32 position of central plate
Show device 34, thus the regulation for the strong point 43, the strong point 44 is only very small amplitude, can so being in course of adjustment
The position of the first central plate 31 of basic holding is motionless.If having during regulation slightly influences, can repeat the above steps, directly
It is completely coaxial to PET and CT centers.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any ability
Field technique personnel without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this
Inventive technique scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to this hair
Any simple modifications, equivalents, and modifications that bright technical spirit is made to above example, belong to the technology of the present invention side
The protection domain of case.
Claims (3)
- A kind of 1. method of PET-CT frames installation alignment, it is characterised in that including：CT centers instruction component is installed on the interface that CT frames rotating part is reserved, CT centers instruction component includes laser, four Dimension adjustment platform, laser are fixed on four-dimensional adjustment platform；PET centers instruction component is installed on the interface that PET frames are reserved, PET centers instruction component includes the first central plate, the Two central plates, the first center tester and the second center tester, the first center tester are located at the center of the first central plate, Second center tester is located at the center of the second central plate；The laser of CT centers instruction component launches beam of laser to PET frames direction, makes the laser light of the laser transmitting Spot is close to the first center tester position of PET centers instruction component；The adjusting knob of the four-dimensional adjustment platform of CT centers instruction component is adjusted, hot spot when rotating CT frames rotating part Position is motionless, confirms that the hot spot is located at CT pivots；PET frame front positions are adjusted, the hot spot is directed at the first center instruction of the first central plate of the PET frames Device；Keep the position of first central plate motionless, make the second center of the reachable and close PET frames of the hot spot Second indicator post of plate, PET frame back-end locations are adjusted, the hot spot is directed at the second center tester.
- 2. the method for PET-CT frames installation alignment according to claim 1, it is characterised in that：When the laser is launched Laser facula close to the first center tester position when, adjust the focusing ring of laser, the hot spot is reached minimum.
- 3. the method for PET-CT frames installation alignment according to claim 1, it is characterised in that：First center tester is Indicator board with cross scale or with concentric circular scale, keep the first center Board position motionless, remove first center Indicator, the hot spot is set to reach the second center tester of the second central plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710641270.4A CN107296621B (en) | 2013-03-25 | 2013-03-25 | Indicating device and method for PET-CT rack installation alignment |
| CN201310095902.3A CN104068884B (en) | 2013-03-25 | 2013-03-25 | A kind of instruction device and method for the installation alignment of PET CT frames |
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| CN201310095902.3A CN104068884B (en) | 2013-03-25 | 2013-03-25 | A kind of instruction device and method for the installation alignment of PET CT frames |
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| CN201710641270.4A Division CN107296621B (en) | 2013-03-25 | 2013-03-25 | Indicating device and method for PET-CT rack installation alignment |
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| CN107320122B (en) * | 2015-07-02 | 2020-10-09 | 湖北锐世数字医学影像科技有限公司 | CT center indicating assembly and PET-CT mounting rack |
| CN107133549B (en) | 2016-02-29 | 2020-11-24 | 上海联影医疗科技有限公司 | ECT motion gating signal acquisition method and ECT image reconstruction method |
| CN106236121B (en) * | 2016-08-30 | 2023-11-28 | 合肥锐世数字科技有限公司 | Alignment adjusting device and alignment adjusting method of multi-mode imaging system |
| CN106388847B (en) * | 2016-08-30 | 2023-09-15 | 合肥锐世数字科技有限公司 | Central indication assembly, PET-CT mounting rack and alignment method of PET-CT mounting rack |
| CN107865667A (en) * | 2017-12-19 | 2018-04-03 | 上海联影医疗科技有限公司 | Medical image system and its method of adjustment |
| CN108742677A (en) * | 2018-05-24 | 2018-11-06 | 明峰医疗系统股份有限公司 | A kind of devices and methods therefor for tandem PET/MR systems registration |
| CN109224323B (en) * | 2018-11-19 | 2023-07-25 | 合肥中科离子医学技术装备有限公司 | Proton treatment rotating frame and assembly method thereof |
| CN110243312A (en) * | 2019-05-09 | 2019-09-17 | 上海联影医疗科技有限公司 | Rack the coaxial degree measurement, device, method and storage medium |
| CN110338825A (en) * | 2019-07-05 | 2019-10-18 | 湖北锐世数字医学影像科技有限公司 | A kind of laser locating apparatus and PET-CT equipment |
| CN111214253A (en) * | 2020-01-22 | 2020-06-02 | 赛诺联合医疗科技（北京）有限公司 | Calibration device and calibration method for multiple image equipment |
| CN113951913B (en) * | 2021-10-18 | 2023-06-16 | 中南大学湘雅医院 | Positioning frame for PET-CT image scanning based on four-dimensional CT fusion |
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| US6917666B2 (en) * | 2002-12-19 | 2005-07-12 | General Electric Company | System and method for table/gantry alignment in imaging systems |
| CN100448402C (en) * | 2005-12-30 | 2009-01-07 | 上海西门子医疗器械有限公司 | CT slip-ring system based on optical fibre data-transmission |
| JP2011505910A (en) * | 2007-12-07 | 2011-03-03 | マリンクロッド・インコーポレイテッド | Automatic injector syringe mounting system |
| CN101744618B (en) * | 2009-12-17 | 2012-01-25 | 北京亿仁赛博医疗设备有限公司 | One-equipment room transmission PET/CT/MR image collection, registering and imaging system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6941164B2 (en) * | 2000-11-24 | 2005-09-06 | Elgems Ltd. | Multimodality imaging system |
| CN101808577A (en) * | 2007-05-24 | 2010-08-18 | 皇家飞利浦电子股份有限公司 | Small animal imaging capsule and bed system |
| CN102170829A (en) * | 2008-08-05 | 2011-08-31 | 通用电气公司 | Method and apparatus for shortening footprint of multi-modality imaging system |
Also Published As
| Publication number | Publication date |
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| CN107296621A (en) | 2017-10-27 |
| CN104068884A (en) | 2014-10-01 |
| CN107296621B (en) | 2020-10-16 |
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