CN111214253A - Calibration device and calibration method for multiple image equipment - Google Patents
Calibration device and calibration method for multiple image equipment Download PDFInfo
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- CN111214253A CN111214253A CN202010073246.7A CN202010073246A CN111214253A CN 111214253 A CN111214253 A CN 111214253A CN 202010073246 A CN202010073246 A CN 202010073246A CN 111214253 A CN111214253 A CN 111214253A
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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
- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
- A61B6/582—Calibration
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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
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- 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 for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/037—Emission tomography
Abstract
The invention relates to a calibration device for multiple image equipment, which comprises: the first alignment structure is arranged on the frame of the first imaging equipment and is positioned on a plane vertical to the axis of the first imaging equipment; the positions and the number of the second alignment structures correspond to those of the first alignment structures, are arranged on a rack of the second imaging equipment and are positioned on a plane vertical to the axis of the second imaging equipment; the alignment piece penetrates through the first alignment structure and the second alignment structure to enable the first imaging device and the second imaging device to realize calibration and installation; the number of the first alignment structures and the number of the second alignment structures are not less than 3 respectively. The invention also provides a calibration method based on the calibration device of the multi-image equipment. The calibration device of the invention abandons a laser, can directly calibrate multiple image devices, avoids the complex process of laser beam adjustment and greatly reduces the cost of auxiliary calibration and installation equipment.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a calibration device and a calibration method for multiple image equipment.
Background
PETCT systems are increasingly being used for routine health checks and disease diagnostics. Among them, PET is an imaging technique for displaying functions and metabolism of organs of a human body without wound, and it injects short-lived radionuclides (e.g., 18F, 11C, etc.) labeled into the human body by using different metabolic states of different tissues of the human body, and reflects the metabolic states reflecting metabolic activities of life through images, thereby achieving the purpose of early diagnosing diseases such as tumors. In the CT, a human body is scanned by using an X-ray beam, and the strength of X-rays transmitted through the human body is detected by a detector according to different absorption rates of different tissues of the human body to the X-rays, so that the organ and tissue imaging of the human body is provided. CT imaging has the characteristics of short scanning time, clear images and the like. PETCT perfectly integrates PET and CT, PET provides detailed function and metabolism of focus and other molecular information, and CT provides accurate dissection and positioning of focus, so that diagnosis accuracy is obviously improved. The PETCT diagnostic image is a fused image of a CT image and a PET image.
For the current PETCT system, two separate devices are provided under the housing, and both have independent physical structure frames, and the system needs to be matched with a laser position marking system when being installed, and the axis of the CT system is overlapped with the axis of the PET system by adopting a method in patent number CN201310095902.3 (hereinafter referred to as document 1) through manual adjustment, so as to achieve the purpose of aligning the structure.
However, in the prior art, the laser alignment method used, for example, the four-axis adjustment platform in document 1, first needs to be matched with a laser; secondly, a laser beam fitting the CT axis can be found only by repeatedly adjusting for many times, the process is time-consuming and labor-consuming, in the calibration process, once the light ray of the laser deviates and cannot be noticed, the calibration result is wrong, and after the calibration is finished and the laser is detached, whether the calibration is accurate cannot be judged; third, during calibration, an engineer is required to visually observe the laser, and the laser radiation energy is within a safe range, but is harmful to the eye if viewed directly.
For this reason, improvements are required to address the problems existing in the prior art.
Disclosure of Invention
Technical problem to be solved
In order to solve the above problems in the prior art, the invention provides a calibration device for multiple imaging devices, which can be used for realizing the installation and calibration of a rack of the multiple imaging devices without a laser in the prior art, and is easy to process, less in parts and low in cost; meanwhile, the invention also provides a calibration method of the multiple image equipment.
In order to achieve the purpose, the invention adopts the main technical scheme that:
a calibration device for multiple imaging devices, comprising:
the first alignment structure is arranged on the frame of the first imaging equipment and is positioned on a plane vertical to the axis of the first imaging equipment;
the positions and the number of the second alignment structures correspond to those of the first alignment structures, are arranged on a rack of the second imaging equipment and are positioned on a plane vertical to the axis of the second imaging equipment; and
the aligning piece penetrates through the first aligning structure and the second aligning structure to enable the first imaging device and the second imaging device to realize calibration and installation;
the number of the first alignment structures and the number of the second alignment structures are not less than 3 respectively.
Meanwhile, the invention also provides a calibration method based on the calibration device, which comprises the following steps:
s1, inserting the alignment member into a second alignment structure arranged on a second imaging equipment rack, so that the first binding face of the alignment member is attached to the plane of the second alignment structure arranged on the second imaging equipment rack;
s2, translating the second imaging device towards the first imaging device until the distance between the plane on the first imaging device on which the first alignment structure is disposed and the plane on the second imaging device is greater than the length of the alignment member;
s3, adjusting the height of the second imaging equipment rack to align the first alignment structure at one end of the alignment piece close to the first imaging equipment rack, moving the second imaging equipment again to the alignment piece to penetrate through the first alignment structure, and enabling the second binding face of the alignment piece to be attached to the plane of the first imaging equipment.
The invention has the beneficial effects that: compared with the prior art that the laser needs to be adopted to generate laser lines to simulate the axes to calibrate the multiple image equipment, the calibrating device of the invention abandons the laser, directly arranges an aligning structure on the image equipment to be calibrated, can directly calibrate the multiple image equipment by matching with the use of an aligning piece, avoids the complex process of laser beam adjustment, can check the condition of the aligning structure in the whole process and after installation, and has the advantages of direct convenience, simplicity and reliability. Meanwhile, the use of expensive lasers is avoided, laser calibration is accurately carried out, and the cost for auxiliary installation of calibration equipment is greatly reduced.
Drawings
FIG. 1 is a side view of a CT gantry;
FIG. 2 is a side view of a PET gantry;
FIG. 3 is a front view of a PETCT with calibration completed;
FIG. 4 is a schematic view of the installation of the calibration piece;
fig. 5 is a flowchart of a calibration method for multiple image devices according to the present invention.
[ description of reference ]
1: a first through hole;
2: a second through hole;
3: an alignment member;
4: a first binding surface;
5: and a second binding surface.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof, which are illustrated in the accompanying drawings of fig. 1-5.
The core of the invention is to provide a calibration device for multiple image devices, which can realize the calibration between the multiple image devices without an additional laser, and has simple structure and low cost.
Wherein the calibration device comprises:
the first alignment structure is arranged on the frame of the first imaging equipment and is positioned on a plane vertical to the axis of the first imaging equipment;
the positions and the number of the second alignment structures correspond to those of the first alignment structures, are arranged on a rack of the second imaging equipment and are positioned on a plane vertical to the axis of the second imaging equipment; and
the aligning piece 3 penetrates through the first aligning structure and the second aligning structure to enable the first imaging device and the second imaging device to realize calibration and installation;
the number of the first alignment structures and the number of the second alignment structures are not less than 3 respectively.
According to the calibration device for the multiple image equipment, the alignment structure is accurately arranged on the vertical plane of the axis which needs to be overlapped with the multiple image equipment in alignment, in the calibration process of the multiple image equipment, the alignment piece matched with the alignment structure can be used for easily realizing the calibration and installation of the multiple image equipment, the calibration device is simple in structure, and the calibration process is simplified.
In addition, the calibration device in the invention does not need to use a laser to generate laser beams, thereby avoiding the complex process of laser beam adjustment, and the condition of the alignment structure can be checked in the whole calibration process and after calibration, which is direct and simple. The cost of the calibration device is reduced because of the elimination of the need for expensive lasers and the precise laser calibration.
Referring to fig. 1 and 2, the multi-imaging device calibration apparatus of the present invention will be described in detail below by taking the first imaging device as CT and the second imaging device as PET, respectively, and it should be understood that the following description is not intended to limit the scope of the present invention.
Fig. 1 shows a side view of a CT gantry, wherein the axis of the first imaging device, i.e. the rotational axis of the CT; the plane perpendicular to the axis of the first imaging device may be, for example, a slip ring mounting plane. The invention provides a calibration device for multiple imaging equipment, which comprises a first alignment structure, wherein the first alignment structure is arranged on a CT frame and is positioned on a slip ring mounting plane vertical to the CT rotation axis.
The rotation axis of the CT is the rotation center of the bearing, the rotation part of the CT is installed on the rotation ring of the bearing, the rotation part of the CT includes the slip ring part (part of multiple concentric circles in fig. 1), the data reading device of the CT slip ring is installed on a very precise plane, namely, the slip ring installation plane, because the slip ring rotating at high speed and the carbon brush at the data link end need to maintain a precise position relationship, the slip ring installation plane is precisely perpendicular to the rotation axis of the CT, therefore, the slip ring installation plane is selected as the processing plane for setting the first alignment structure, and the calibration accuracy can be improved.
Of course, the processing plane on the CT gantry on which the first alignment structure is disposed is not limited to the slip ring mounting plane, and only needs to be precisely perpendicular to the rotation axis of the CT to facilitate the processing of the first alignment structure. When the multiple imaging devices are calibrated and installed, the planes of the first alignment structures and the second alignment structures which are correspondingly arranged in position and quantity are parallel, so that the rotation axis of the first imaging device, such as a CT (computed tomography) device, is coincident with the axis of the second imaging device, and the calibration and installation of the multiple imaging devices are realized.
FIG. 2 shows a side view of a PET gantry with the second imaging device axis, i.e., the axis of the PET detectors; the plane perpendicular to the axis of the second imaging device may be, for example, the plane of the PET mounting plate. The second alignment structure provided by the calibration device for multiple imaging devices provided by the invention is arranged on the PET rack and is positioned on a plane perpendicular to the axis of the PET detector, for example, the plane where the PET mounting plate is positioned.
For a PET gantry, the PET detectors are mounted on a PET mounting plate, which is a machined metal aluminum or steel plate so that its axis is the axis of the metal plate, and the detectors are precisely mounted on the mounting plate so that the detector axes coincide with the axis of the metal plate. The arrangement is convenient for opening the second alignment structure, and on the other hand, when the plane of the second alignment structure is parallel to the plane of the first alignment structure, the calibration installation of the CT gantry and the PET gantry can be easily realized.
Preferably, the first aligning structure is a first through hole 1 for the aligning member 3 to penetrate through, and an axis of the first through hole 1 is perpendicular to the slip ring mounting plane, so that the accuracy of the calibration of the multiple imaging device is improved. The first through hole 1 is in clearance fit with the aligning member 3.
Preferably, the second alignment structure is a second through hole 2 for the alignment member 3 to pass through, and the axis of the second through hole 2 is perpendicular to the PET mounting plate; the second through hole 2 is in clearance fit with the aligning member 3.
The number of the first through holes 1 and the second through holes 2 should be not less than 3, preferably, fig. 1 shows 4 first through holes 1, the first through holes 1 are opened on the slip ring installation plane to form a circular ring with a diameter of 1500mm, for example, and the center of the circular ring is located on the CT rotation axis. Fig. 2 likewise shows 4 second through-holes 2 corresponding to the positions of the first through-holes 1, the second through-holes 2 opening onto the PET mounting plate. The first through holes and the second through holes are respectively arranged at equal intervals in the circumferential direction. It can be understood that the first through hole and the through hole do not necessarily need to form a circular ring with the circle centers respectively positioned on the axis of the imaging device and the diameter of 1500mm, and after the plane where the first through hole and the through hole are positioned is determined, the processing of the first through hole and the position correspondence of the first through hole and the through hole are only needed to be considered, so that the circular ring can be formed, and the circular ring can also be in other shapes; the grooves may be arranged at equal intervals in the circumferential direction or may not be arranged at equal intervals.
Preferably, the diameter of the first through hole 1 may be, for example, 10mm, and the diameter of the second through hole may be, for example, 20 mm; of course, the diameters of the first and second through holes may be the same for easy processing.
The second imaging device may also be SPECT, and the arrangement of the second alignment structure on SPECT is the same as that of PET, which is not described in detail.
Fig. 4 shows the aligning member 3 which penetrates through the first and second through holes to complete the calibration and installation of the CT gantry and the PET gantry during the calibration and installation of the CT gantry and the PET gantry. To facilitate the calibration and installation, the through hole is in clearance fit with the alignment member 3.
For example, in practical applications, certain adjustment errors are allowed from an engineering point of view, e.g. typically a translation in the X, Y, Z direction may be <1mm, and a rotation in the XZ, YZ, XY plane may be <0.1 degrees. Therefore, in order to facilitate the calibration of the multiple image device, in the actual calibration process, the alignment member 3 is in clearance fit with the first through hole and the second through hole, for example, the alignment member 3 is in clearance fit with the second through hole 2 formed in the PET mounting plate, and the fit clearance can be smaller than 0.02 mm; the alignment member 3 is in large clearance fit with the first through hole 1 formed in the slip ring mounting plane, and the fit clearance can be 1mm, so that the field calibration operation is facilitated on the premise of meeting the adjustment error. Wherein, the large clearance is the difference between the diameter of the first through hole 1 and the diameter of the part of the aligning member 3 passing through the second through hole 2.
Preferably, the alignment member 3 is a substantially cylindrical structure, and as shown in fig. 4, includes a circular truncated cone, an alignment member body penetrating through the second through hole 2, and a front end penetrating through the first through hole 1.
The circular truncated cone is provided with a first abutting surface 4 perpendicular to the axis of the aligning piece 3. The diameter of round platform is greater than the diameter of second through-hole 2, works as behind alignment member 3 wears to locate second through-hole 2, the first binding face 4 of round platform with the laminating of PET mounting panel ensures like this alignment member 3's axis with the PET mounting panel is perpendicular, thereby alignment member 3's axis is parallel with the axis of PET detector, has improved the accuracy of multiple image equipment calibration.
Similarly, the alignment member body has a second abutment surface 5 perpendicular to the axis of the alignment member 3. The diameter of aligning member main part is greater than the diameter of first through-hole 1, works as aligning member 3 wears to locate first through-hole 1 after, the second binding face 5 of aligning member main part with the laminating of sliding ring mounting plane ensures like this aligning member 3's the same perpendicular to of axis sliding ring mounting plane, thereby aligning member 3's axis is on a parallel with CT's rotation axis, has ensured CT system and PET system's axis coincidence, can easily realize multiple image equipment's alignment.
Preferably, the circular truncated cone, the alignment member body and the front end portion may be integrally formed, for example, to facilitate the preparation of the alignment member 3.
The following describes in detail a calibration method implemented by the calibration apparatus for multiple imaging devices of the present invention with reference to fig. 5.
As shown in fig. 5, the calibration method in this embodiment includes the following steps:
s1, inserting the alignment member into a second alignment structure arranged on a second imaging equipment rack, so that the first binding face of the alignment member is attached to the plane of the second alignment structure arranged on the second imaging equipment rack;
s2, translating the second imaging device towards the first imaging device until the distance between the plane on the first imaging device on which the first alignment structure is disposed and the plane on the second imaging device is greater than the length of the alignment member;
s3, adjusting the height of the second imaging equipment rack to align the first alignment structure at one end of the alignment piece close to the first imaging equipment rack, moving the second imaging equipment again to the alignment piece to penetrate through the first alignment structure, and enabling the second binding face of the alignment piece to be attached to the plane of the first imaging equipment.
Further, the step S1 further includes:
and after the first binding surface of the aligning piece is bound with the plane of the second imaging equipment, the aligning piece is fixed on the rack of the second imaging equipment through a fastener.
Therefore, the calibration method provided by the invention can be used for directly calibrating the multiple image equipment, avoids the complex process of laser beam adjustment, can check the condition of the alignment structure in the whole process and after installation, and has the advantages of direct convenience, simplicity and reliability.
The first imaging device may be a CT and the second imaging device may be a PET or SPECT. Referring to fig. 5, the calibration method provided by the present invention is described in detail below by taking CT and PET as examples, and it should be understood that the following description is not to be construed as limiting the scope of the present invention.
Specifically, in this embodiment, during the calibration installation, the position of the CT gantry is adjusted, the horizontal position of the CT gantry is adjusted, the slip ring installation plane is perpendicular to the horizontal plane, and then the CT gantry is fixed by using the expansion bolt, and the PET gantry is used as a reference to align the CT gantry, which includes the following steps:
step one, the aligning member 3 penetrates through the second through hole 2 formed in the PET mounting plate, so that the first binding surface of the aligning member 3 is bound with the PET mounting plate, and meanwhile, for convenience in use, the aligning member can be fixed on the PET mounting plate through fasteners such as screws.
Moving the PET rack by using the tool to enable the PET rack to slowly and stably approach the CT rack, wherein the distance between the PET mounting plate and a slip ring mounting plane provided with the first through hole 1 is greater than the total length of the alignment piece 3;
the tool in the embodiment is a general tool in the process of installing equipment, and the tool can be used for realizing the lifting, the lowering, the moving and the like of the equipment, and is not an innovative part of the invention, so the tool is not described again;
in addition, in the second step, the distance from the PET rack to the PET mounting plate to the slip ring mounting plane is greater than the total length of the aligning member 3, which means that the distance between the PET rack and the CET rack at this time can make it easy for the naked eye to observe whether the position of the PET rack is substantially aligned with the CT rack, that is, whether the front end of the aligning member 3 is aligned with the first through hole 1 on the CT rack.
And step three, according to the result of the visual observation in the step two, adjusting the height of the tool until the front end part of the aligning piece 3 is aligned with the four first through holes 1 on the CT rack through visual observation, translating the PET rack towards the direction close to the CT rack again until the front end part of the aligning piece 3 enters the first through holes 1 on the CT rack, and the second mounting joint surface 5 of the aligning piece 3 is jointed with the slip ring mounting plane of the CT rack, as shown in fig. 3, so that the calibration process between the PET system and the CT system is finished.
When the four distances in the circumferential direction between the slip ring mounting plane of the CT gantry and the plane of the PET mounting plate are equal, it indicates that the two axes have no rotation error around the YZ plane and around the XZ plane, and at the same time, because the second contact surface of the alignment member 3 has been contacted to the slip ring mounting plane of the CT gantry, the translation error along the Z axis is also eliminated.
In addition, because the alignment member has entered the corresponding through hole, the two axes have eliminated the translation in the X and Y directions, as well as the rotational error about the XY plane, enabling the alignment of the PET system and the CT system.
The features of the embodiments and embodiments described above may be combined with each other without conflict.
It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the specific embodiments described above. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.
Claims (10)
1. A calibration device for multiple imaging devices, comprising:
the first alignment structure is arranged on the frame of the first imaging equipment and is positioned on a plane vertical to the axis of the first imaging equipment;
the positions and the number of the second alignment structures correspond to those of the first alignment structures, are arranged on a rack of the second imaging equipment and are positioned on a plane vertical to the axis of the second imaging equipment; and
the aligning piece penetrates through the first aligning structure and the second aligning structure to enable the first imaging device and the second imaging device to realize calibration and installation;
the number of the first alignment structures and the number of the second alignment structures are not less than 3 respectively.
2. The apparatus of claim 1,
the first imaging device is a CT;
the first imaging device axis is a rotation axis of the CT;
the plane perpendicular to the axis of the first imaging device is a slip ring mounting plane.
3. The apparatus of claim 2,
the first alignment structure is a first through hole for the alignment piece to penetrate through, and the axis of the first through hole is perpendicular to the slip ring installation plane;
the first through hole is in clearance fit with the aligning piece.
4. The apparatus of claim 1,
the second imaging device is PET or SPECT;
the axis of the second imaging device is the axis of a PET or SPECT detector;
the plane perpendicular to the axis of the second imaging device is the plane of the PET or SPECT mounting plate.
5. The apparatus of claim 4,
the second alignment structure is a second through hole for the alignment piece to penetrate through, and the axis of the second through hole is perpendicular to the PET or SPECT mounting plate;
the second through hole is in clearance fit with the aligning piece.
6. The apparatus of claim 1,
the alignment piece is of a generally cylindrical structure and comprises a round table, an alignment piece main body and a front end portion, wherein the round table, the alignment piece main body and the front end portion are sequentially arranged, the alignment piece main body penetrates through the second alignment structure, and the front end portion penetrates through the first alignment structure.
7. The apparatus of claim 6,
the circular table is provided with a first binding surface which is vertical to the axis of the aligning piece, and when the aligning piece is arranged in the second aligning structure in a penetrating mode, the first binding surface is bound with the plane which is vertical to the axis of the second imaging equipment;
the alignment member main body is provided with a second binding face perpendicular to the axis of the alignment member, and when the alignment member penetrates through the first alignment structure, the second binding face is bound with a plane perpendicular to the axis of the first imaging device.
8. The apparatus of claim 6,
the circular truncated cone, the aligning piece main body and the front end part are integrally formed.
9. A calibration method based on the calibration apparatus for multiple imaging devices of any one of claims 1-8, comprising the steps of:
s1, inserting the alignment member into a second alignment structure arranged on a second imaging equipment rack, so that the first binding face of the alignment member is attached to the plane of the second alignment structure arranged on the second imaging equipment rack;
s2, translating the second imaging device towards the first imaging device until the distance between the plane of the first alignment structure on the first imaging device rack and the plane on the second imaging device rack is greater than the length of the alignment member;
s3, adjusting the height of the second imaging equipment rack to align the first alignment structure at one end of the alignment piece close to the first imaging equipment rack, moving the second imaging equipment again to the alignment piece to penetrate through the first alignment structure, and enabling the second binding face of the alignment piece to be attached to the plane of the first imaging equipment.
10. The method of claim 9,
the step S1 further includes:
and after the first binding surface of the aligning piece is bound with the plane of the second imaging equipment, the aligning piece is fixed on the rack of the second imaging equipment through a fastener.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693614A (en) * | 2021-08-26 | 2021-11-26 | 赛诺联合医疗科技（北京）有限公司 | PETCT system alignment device and alignment method thereof |
| CN113693618A (en) * | 2021-08-26 | 2021-11-26 | 江苏赛诺格兰医疗科技有限公司 | PET host for multiple image system and installation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340645A (en) * | 2013-07-04 | 2013-10-09 | 沈阳东软医疗系统有限公司 | Method and device for mechanical calibration of multi-system medical device |
| CN104068884A (en) * | 2013-03-25 | 2014-10-01 | 上海联影医疗科技有限公司 | Installation and alignment indicating device and installation and alignment indicating method for PET-CT (positron emission tomography-computed tomography) frameworks |
| CN204813930U (en) * | 2015-07-02 | 2015-12-02 | 武汉数字派特科技有限公司 | Aim at regulation and separator and PET -CT installation frame |
| US20160174929A1 (en) * | 2014-12-17 | 2016-06-23 | General Electric Company | Method and apparatus for table-gantry alignment in an imaging system |
| CN106821411A (en) * | 2017-04-06 | 2017-06-13 | 上海联影医疗科技有限公司 | The machine frame system and its calibration method of a kind of image documentation equipment |
| CN108030500A (en) * | 2017-10-24 | 2018-05-15 | 江苏赛诺格兰医疗科技有限公司 | A kind of PET/CT racks and PET/CT systems |
-
2020
- 2020-01-22 CN CN202010073246.7A patent/CN111214253A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068884A (en) * | 2013-03-25 | 2014-10-01 | 上海联影医疗科技有限公司 | Installation and alignment indicating device and installation and alignment indicating method for PET-CT (positron emission tomography-computed tomography) frameworks |
| CN103340645A (en) * | 2013-07-04 | 2013-10-09 | 沈阳东软医疗系统有限公司 | Method and device for mechanical calibration of multi-system medical device |
| US20160174929A1 (en) * | 2014-12-17 | 2016-06-23 | General Electric Company | Method and apparatus for table-gantry alignment in an imaging system |
| CN204813930U (en) * | 2015-07-02 | 2015-12-02 | 武汉数字派特科技有限公司 | Aim at regulation and separator and PET -CT installation frame |
| CN106821411A (en) * | 2017-04-06 | 2017-06-13 | 上海联影医疗科技有限公司 | The machine frame system and its calibration method of a kind of image documentation equipment |
| CN108030500A (en) * | 2017-10-24 | 2018-05-15 | 江苏赛诺格兰医疗科技有限公司 | A kind of PET/CT racks and PET/CT systems |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693614A (en) * | 2021-08-26 | 2021-11-26 | 赛诺联合医疗科技（北京）有限公司 | PETCT system alignment device and alignment method thereof |
| CN113693618A (en) * | 2021-08-26 | 2021-11-26 | 江苏赛诺格兰医疗科技有限公司 | PET host for multiple image system and installation method thereof |
| CN113693614B (en) * | 2021-08-26 | 2024-01-05 | 赛诺联合医疗科技（北京）有限公司 | PETCT system alignment device and alignment method thereof |
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