CN106667509A - Special thyroid gamma camera based on (cadmium zinc telluride) - Google Patents
Special thyroid gamma camera based on (cadmium zinc telluride) Download PDFInfo
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- CN106667509A CN106667509A CN201510766379.1A CN201510766379A CN106667509A CN 106667509 A CN106667509 A CN 106667509A CN 201510766379 A CN201510766379 A CN 201510766379A CN 106667509 A CN106667509 A CN 106667509A
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- detector probe
- mainframe box
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- thyroid
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- 210000001685 thyroid gland Anatomy 0.000 title claims abstract description 18
- QWUZMTJBRUASOW-UHFFFAOYSA-N cadmium tellanylidenezinc Chemical compound [Zn].[Cd].[Te] QWUZMTJBRUASOW-UHFFFAOYSA-N 0.000 title abstract 2
- 239000000523 sample Substances 0.000 claims abstract description 47
- 238000013461 design Methods 0.000 claims abstract description 25
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 235000004443 Ricinus communis Nutrition 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000003491 array Methods 0.000 claims description 5
- 240000000528 Ricinus communis Species 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 12
- 238000009206 nuclear medicine Methods 0.000 description 7
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 210000001835 viscera Anatomy 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000157 blood function Effects 0.000 description 2
- 238000013399 early diagnosis Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000009518 sodium iodide Nutrition 0.000 description 2
- 210000004881 tumor cell Anatomy 0.000 description 2
- 208000012239 Developmental disease Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ORCSMBGZHYTXOV-UHFFFAOYSA-N bismuth;germanium;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Ge].[Ge].[Ge].[Bi].[Bi].[Bi].[Bi] ORCSMBGZHYTXOV-UHFFFAOYSA-N 0.000 description 1
- 230000003915 cell function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000037323 metabolic rate Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a special thyroid gamma camera based on (cadmium zinc telluride). The special thyroid gamma camera comprises a mainframe box, a maintenance cabinet door, a worktable, castors, an electric push rod, a cantilever structure, a detector probe, a display support and a display. The maintenance cabinet door is arranged outside the mainframe box, the worktable is arranged on one side of the upper portion of the mainframe box, the cantilever structure is arranged on the other side of the upper portion of the mainframe box, the display support is arranged on the worktable, the display is arranged above the display support, the castors are arranged on the lower portion of the mainframe box, one end of the cantilever structure is mounted on the electric push rod in the mainframe box, and the detector probe is mounted at the other end of the cantilever structure. The special thyroid gamma camera is simple in structure, reasonable in design and low in production cost, and the detector probe is small in area, can be detached and can be conveniently maintained, and the type of the detector probe is conveniently adjusted.
Description
Technical field
The present invention relates to nuclear medicine image equipment, the special gammacamera of the more particularly to a kind of thyroid based on CZT.
Background technology
Nuclear medicine image is based on the inside and outside radiation gender gap of internal organs and internal organs inside local radiation gender gap, and radioactive height is directly relevant with the aggregate amount of developer in internal organs and pathological changes, aggregate amount number and depending on blood flow, cell function, cell quantity, metabolic rate and the excretion factor such as drain, therefore, nuclear medicine image can not only show position, form and the size of internal organs and pathological changes, it is often more important that while providing the information about aspects such as blood flow, function and metabolism.
Blood flow, function and Developmental and Metabolic Disorder are often the early changes of disease, can occur in morphosiss and change in the past, therefore nuclear medicine image often contributes to the early diagnosiss of disease, and are widely used in the essence research of internal organs and functional statuses and disease in molecular level.
Detector is the most important ingredient of nuclear medicine facility, and scintillation crystal is the core of conventional detectors.For gamma-ray detection, now widely used technology is, using sodium iodide,crystal（NaI（Tl））, bismuth germanium oxide（BGO）, yttrium luetcium silicate（LYSO）Deng scintillation crystal, gamma-rays are changed into into fluorescence（Purple light or ultraviolet）, then Photoelectric multiplier tube（PMT）Convert light signals into the signal of telecommunication that imaging needs.But, from between gamma-rays to the signal of telecommunication through repeatedly conversion, process, there is scattering, cause the loss of bulk information in fluorescence in crystal, the degree of accuracy to gamma-rays positioning ex vivo is also reduced simultaneously, limits spatial resolution, the sensitivity of nuclear medicine facility.Therefore, tradition is had the obvious disadvantage that based on scintillation crystal, PMT, the nuclear medicine facility of subsequent conditioning circuit basic technology.
At present, with CZT（Cadmium-zinc-teiluride）The research of semi-conducting material is goed deep into, gamma-rays are directly converted into the signal of telecommunication by CZT semiconductor detectors, without the transition of fluorescence, also without PMT, volume reduces, and can directly obtain the position signalling and energy from detector photon, and thus brings a series of excellent properties, such as energy high resolution, spatial resolution is high, detection efficient is high, sensitivity is good, etc..The application of CZT semiconductor detectors substantially increases certainty of measurement, improves picture quality, shortens imaging time, reduces patient injection dosage, is particularly well-suited to the early diagnosis and therapy of different parts cancer.
For example when the cancerous cell that hospital is done to patient is detected, particularly cancer patient's further consultation when, it is contemplated that to reduce the situation of patient's medical fees, tend not to do the cancerous cell detection of whole body, but for sufferer local detection cancerous cell.The use cost of the large-scale instrument of hospital so can be both reduced, high-precision detection targetedly can be carried out to the region of disease of patient again, and reduces the testing cost of patient.So be directed to the multiple regional area of cancer, need to design small-sized gammacamera and meet local sufferer detection demand.
The content of the invention
It is an object of the invention to provide a kind of special gammacamera of the thyroid based on CZT, first, are detected using CZT semiconductor detectors, energy resolution is high, spatial resolution is high, detection efficient is high, sensitivity is good.Second, detector probe is designed and sized to into 100*100mm, most clinical demands can be met.3rd, unique design can 180 degree rotation cantilever design tie detector probe, it is capable of achieving to patient's thyroid 180 degree rotated detection, by integration of the imaging system to shooting time and camera site, and then more accurately finds out the exact position at cancerous tumor cell place.4th, simple structure is reasonable in design, and detector probe area is less, low production cost, and detector probe can be dismantled, convenient to adjust detector probe type and maintenance.
For achieving the above object, the special gammacamera of thyroid based on CZT provided by the present invention, including mainframe box, maintenance cabinet door, workbench, castor, electric pushrod, cantilever design, detector probe, display bracket and display, mainframe box is externally provided with maintenance cabinet door, main frame upper box part side is provided with workbench, and opposite side is provided with cantilever design；Display bracket is provided with the workbench, display bracket top is provided with display, and mainframe box has castor；Described cantilever design one end is arranged on the electric pushrod in mainframe box, and the cantilever design other end is provided with detector probe.
Further, the cantilever design includes swivel base, rotary shaft, connection swing arm, telescopic arm and detector probe mounting seat；Rotary shaft bottom is fixedly connected with swivel base, and rotary shaft top is provided with swing arm handing-over ear, and the swing arm handing-over ear is hinged and connected with swing arm one end is connected；The other end of connection swing arm is hinged one end and is connected with telescopic arm；The telescopic arm other end is hinged and connected with detector probe mounting seat.
Further, pel array formula CZT semiconductor detector group is installed in the detector probe.
Further, the two ends of the detector probe mounting seat are respectively provided with a regulating bolt, and detector probe is fixed on detector probe mounting seat by regulating bolt.
Further, also including power supply and control module, power supply and control module are provided with the mainframe box, control module includes data acquisition circuit and data read-out system.
The detector probe is built-in with CZT semiconductor detector groups, power supply connects CZT semiconductor detector groups, to data acquisition circuit, data acquisition circuit is imaged the data transfer for collecting to data read-out system to the data transfer that CZT semiconductor detectors group is detected.
Further, the detector probe size is 100*100mm.
Further, the data acquisition circuit includes pre-amplification circuit, multi-channel switch, signal adjustment circuit, digital to analog converter, FPGA programmable gate array circuits, pre-amplification circuit is electrically connected with multi-channel switch, multi-channel switch is connected to signal adjustment circuit, signal adjustment circuit is connected to FPGA programmable gate array circuits by digital to analog converter, and FPGA programmable gate arrays circuit is connected to data read-out system by RS232 interface circuits.
It is an advantage of the invention that：First, detected using CZT semiconductor detectors, energy resolution is high, spatial resolution is high, detection efficient is high, sensitivity is good.Second, detector probe is designed and sized to into 100*100mm, most clinical demands can be met.3rd, unique design can 180 degree rotation cantilever design tie detector probe, it is capable of achieving to patient's thyroid 180 degree rotated detection, by integration of the imaging system to shooting time and camera site, and then more accurately finds out the exact position at cancerous tumor cell place.4th, simple structure is reasonable in design, and detector probe area is less, low production cost, and detector probe can be dismantled, convenient to adjust detector probe type and maintenance.
Description of the drawings
To become apparent from understanding the purpose of the present invention, feature and advantage, presently preferred embodiments of the present invention is described in detail below with reference to accompanying drawing, wherein：
Fig. 1 is the left view of the present invention；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the top view of the present invention；
Fig. 4 is the axonometric chart of the present invention；
Fig. 5 is the partial enlarged drawing of detector probe in an embodiment；
Fig. 6 is the fundamental diagram of the present invention；
Fig. 7 is the framework map of data acquisition circuit.
In figure：1- mainframe boxes, 2- maintenance cabinet doors, 3- workbench, 4- castors, 5- electric pushrods, 6- cantilever designs, 7- detector probes, 8- display brackets, 9- display, 61- swivel bases, 62- rotary shafts, 63- connection swing arms, 64- telescopic arms, 65- detector probe mounting seats, 66- regulating bolts, 11- data acquisition circuits, 12- power supplys, 13- data read-out systems, 110- pre-amplification circuits, 111- multi-channel switches, 112- signal adjustment circuits, 113- digital to analog converters, 114-FPGA programmable gate array circuits.
Specific embodiment
Refering to Fig. 1 ~ Fig. 4, the special gammacamera of thyroid based on CZT of the present embodiment, including mainframe box 1, maintenance cabinet door 2, workbench 3, castor 4, electric pushrod 5, cantilever design 6, detector probe 7, display bracket 8 and display 9, mainframe box 1 is externally provided with maintenance cabinet door 2, the top side of mainframe box 1 is provided with workbench 3, and opposite side is provided with cantilever design 6；Display bracket 8 is provided with the workbench 3, the top of display bracket 8 is provided with display 9, and mainframe box 1 has castor 4；The one end of the cantilever design 6 is arranged on the electric pushrod 5 of mainframe box 1, and the other end of cantilever design 6 is provided with detector probe 7.The cantilever design 6 includes swivel base 61, rotary shaft 62, connection swing arm 63, telescopic arm 64 and detector probe mounting seat 65；The bottom of rotary shaft 62 is fixedly connected with swivel base 61, and the top of rotary shaft 62 is provided with swing arm handing-over ear, and the swing arm handing-over ear is hinged and connected with the one end of swing arm 63 is connected；The other end of connection swing arm 63 is hinged one end and is connected with telescopic arm 64；The other end of telescopic arm 64 is hinged and connected with detector probe mounting seat 65.By can 180 degree rotation the tie detector of cantilever design 6 probe 7, realize to patient's thyroid 180 degree rotated detection, spatial resolution is high, detection efficient is high, sensitivity is good.
Refering to Fig. 5, in another embodiment, the detector probe 7 is provided with pel array formula CZT semiconductor detector group.Can be less with each CZT semiconductor detector probe value in the CZT semiconductor detector groups of integrated array formula, its relative error magnitudes.
Refering to Fig. 4, in another embodiment, the two ends of the detector probe mounting seat 65 are respectively provided with a regulating bolt 66, and detector probe 7 is fixed on detector probe mounting seat 65 by regulating bolt 66.This structure can make detector probe 7 centered on regulating bolt 66, rotate in detector probe mounting seat 65, and for patient's sitting posture angle is adjusted.
Refering to Fig. 6, power supply and control module are provided with the mainframe box, control module includes data acquisition circuit and data read-out system.The operation principle of the application：CZT semiconductor detector groups are connected by power supply, to data acquisition circuit, data acquisition circuit is imaged the data transfer for collecting to data read-out system to the data transfer that CZT semiconductor detectors group is detected.
Refering to Fig. 7, the data acquisition circuit 11 includes pre-amplification circuit 110, multi-channel switch 111, signal adjustment circuit 112, digital to analog converter 113, FPGA programmable gate arrays circuit 114, pre-amplification circuit 110 is electrically connected with multi-channel switch 111, multi-channel switch 111 is connected to signal adjustment circuit 112, signal adjustment circuit 112 is connected to FPGA programmable gate arrays circuit 114 by digital to analog converter 113, and FPGA programmable gate arrays circuit 114 is connected to data read-out system 13 by RS232 interface circuits.
Claims (6)
1. the special gammacamera of thyroid of CZT is based on, it is characterized in that, including mainframe box, maintenance cabinet door, workbench, castor, electric pushrod, cantilever design, detector probe, display bracket and display, mainframe box is externally provided with maintenance cabinet door, main frame upper box part side is provided with workbench, and opposite side is provided with cantilever design；Display bracket is provided with the workbench, display bracket top is provided with display, and mainframe box has castor；Described cantilever design one end is arranged on the electric pushrod in mainframe box, and the cantilever design other end is provided with detector probe.
2. the special gammacamera of the thyroid based on CZT according to claim 1, it is characterised in that：The cantilever design includes swivel base, rotary shaft, connection swing arm, telescopic arm and detector probe mounting seat；Rotary shaft bottom is fixedly connected with swivel base, and rotary shaft top is provided with swing arm handing-over ear, and the swing arm handing-over ear is hinged and connected with swing arm one end is connected；The other end of connection swing arm is hinged one end and is connected with telescopic arm；The telescopic arm other end is hinged and connected with detector probe mounting seat.
3. the special gammacamera of the thyroid based on CZT according to claim 2, it is characterised in that：The two ends of the detector probe mounting seat are respectively provided with a regulating bolt, and detector probe is fixed on detector probe mounting seat by regulating bolt.
4. the special gammacamera of the thyroid based on CZT according to claim 1, it is characterised in that：The detector probe is built-in with CZT semiconductor detector groups.
5. the special gammacamera of the thyroid based on CZT according to claim 4, it is characterised in that：Also include power supply and control module, power supply and control module are provided with the mainframe box, control module includes data acquisition circuit and data read-out system.
6. the special gammacamera of the thyroid based on CZT according to claim 5, it is characterised in that：The data acquisition circuit includes pre-amplification circuit, multi-channel switch, signal adjustment circuit, digital to analog converter, FPGA programmable gate array circuits, pre-amplification circuit is electrically connected with multi-channel switch, multi-channel switch is connected to signal adjustment circuit, signal adjustment circuit is connected to FPGA programmable gate array circuits by digital to analog converter, and FPGA programmable gate arrays circuit is connected to data read-out system by RS232 interface circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766379.1A CN106667509A (en) | 2015-11-11 | 2015-11-11 | Special thyroid gamma camera based on (cadmium zinc telluride) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766379.1A CN106667509A (en) | 2015-11-11 | 2015-11-11 | Special thyroid gamma camera based on (cadmium zinc telluride) |
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| CN106667509A true CN106667509A (en) | 2017-05-17 |
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| CN201510766379.1A Pending CN106667509A (en) | 2015-11-11 | 2015-11-11 | Special thyroid gamma camera based on (cadmium zinc telluride) |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6694172B1 (en) * | 2001-06-23 | 2004-02-17 | Koninklijke Philips Electronics, N.V. | Fault-tolerant detector for gamma ray imaging |
| CN101143097A (en) * | 2006-09-11 | 2008-03-19 | 住友重机械工业株式会社 | Radiation ray detecting circuit and radiation ray detecting device |
| CN201181281Y (en) * | 2008-03-20 | 2009-01-14 | 深圳市鑫源通电子有限公司 | Portable X-ray article examination device |
| CN203591257U (en) * | 2013-11-25 | 2014-05-14 | 北京华健恒创技术有限公司 | Mammary gland electrical impedance detection scanning rack |
| CN104035119A (en) * | 2014-06-06 | 2014-09-10 | 成都理工大学 | Uneven lung gamma internal pollution detection device |
| CN205107712U (en) * | 2015-11-11 | 2016-03-30 | 上海优又特医疗设备科技有限公司 | Special gamma camera of thyroid gland based on CZT |
-
2015
- 2015-11-11 CN CN201510766379.1A patent/CN106667509A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6694172B1 (en) * | 2001-06-23 | 2004-02-17 | Koninklijke Philips Electronics, N.V. | Fault-tolerant detector for gamma ray imaging |
| CN101143097A (en) * | 2006-09-11 | 2008-03-19 | 住友重机械工业株式会社 | Radiation ray detecting circuit and radiation ray detecting device |
| CN201181281Y (en) * | 2008-03-20 | 2009-01-14 | 深圳市鑫源通电子有限公司 | Portable X-ray article examination device |
| CN203591257U (en) * | 2013-11-25 | 2014-05-14 | 北京华健恒创技术有限公司 | Mammary gland electrical impedance detection scanning rack |
| CN104035119A (en) * | 2014-06-06 | 2014-09-10 | 成都理工大学 | Uneven lung gamma internal pollution detection device |
| CN205107712U (en) * | 2015-11-11 | 2016-03-30 | 上海优又特医疗设备科技有限公司 | Special gamma camera of thyroid gland based on CZT |
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Application publication date: 20170517 |