CN106108935B - A kind of SPECT detection device - Google Patents
A kind of SPECT detection device Download PDFInfo
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- CN106108935B CN106108935B CN201610800191.9A CN201610800191A CN106108935B CN 106108935 B CN106108935 B CN 106108935B CN 201610800191 A CN201610800191 A CN 201610800191A CN 106108935 B CN106108935 B CN 106108935B
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- die body
- sensitivity
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- latch segment
- detection device
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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
-
- 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
Abstract
The present invention relates to a kind of SPECT detection devices, the SPECT detection device includes sensitivity die body and the fixed device of die body, the sensitivity die body includes pedestal, die body lid and empty slot, and the pedestal is equipped with empty slot, and the die body lid is covered on the pedestal so that the empty slot forms confined space；The fixed device of the die body includes connecting rod, latch segment and bottom plate；Wherein, one end of the sensitivity die body and one end of latch segment connect, and the other end of the latch segment and one end of connecting rod connect, and the other end of the connecting rod is connect with the bottom plate.SPECT detection device provided by the present invention, its spatial resolution that can be used for simulation detection equipment and level sensitivity, it in the detection after the guarantee of the routine quality of equipment and quality control, the new installation examination of equipment or overhaul and can be that treatment planning systems acquisition plays a significant role when preparing a large amount of physical data, it is treated using the unit simulation, more accurate treatment plan can be formulated for patient.
Description
Technical field
The present invention relates to medical instruments fields, refer in particular to a kind of SPECT detection device.
Background technique
Single photon emission computed tomography (Single Photon Emission Computed Tomography,
It SPECT) is the advanced equipment of current nuclear medicine and imaging modality.Radioactive substance (such as 99mTc, 123I etc.) label is being radiated
Property drug (drug may be a kind of protein or organic molecule) on, mark meter drug generally can be selectively by human body difference
Site absorption, SPECT utilize the γ issued with the intracorporal Single Photon Emission nucleic of infusion of medicine people (such as 99mTc, 123I etc.)
Ray reconstructed image under area of computer aided constitutes corresponding site fault image.For example, the drug that can be gathered in cardiac muscle is just used for
The SPECT of heart is imaged.These, which can be absorbed, indicates the organ of the drug of a certain amount of radioactive substance bright block can be presented in the picture,
If organ has abnormal absorbing state to will lead to the partially bright of organs abnormality or partially dark.
SPECT is mainly made of probe, rack, tomography bed, computer and photo-optical system.Probe system is a rotation
Type gammacamera, probe is rotated by 360 ° around axle center or a series of 180 ° of plane projection pictures of acquisition, utilizes filtered back projection (FBP)
Method can rebuild lateral fault image from a series of projection images.By lateral fault image three-dimensional information again through image again
Combine the fault image of available sagittal, coronal and any loxosis direction.Because application is universal, usually said ECT, no
Add and refers both to monochromatic light subtype (SPECT) when illustrating.SPECT is actually one kind by electronic computer tomography (CT) and nuclear medicine tracer
The high-tech technology that principle combines.
Current almost all of SPECT belongs to rotating gamma-camera type, i.e., using being fixed in accurate endless glide
High-quality gammacamera probe makes it rotate and acquire information around testee by computer drives, then by computer into
Row data processing, reconstructs the spatial image of checking matter, and presses that body axis is cross-section, sagittal is disconnected, coronal disconnected or arbitrary cross-section direction
Show the tomography of the object as.
Since radionuclide thus is accurately detected arbitrarily to all directions spatially spatial emission gamma-rays
The spatial position of γ photon is distributed, and must just use collimator.It is mounted on the outermost layer of gammacamera probe, and effect is to allow
Gamma-rays on certain certain angle direction within the vision enters crystal by collimator aperture, and outside the visual field with collimation
The ray that device angle of spot hole is not inconsistent then is collimated device and is shielded, that is, plays the role of space orientation selector.
The most basic performance indicator of collimator is sensitivity and resolution ratio.So-called collimator sensitivity refers to that collimator receives
The ability of radioactive ray from radioactive source, level sensitivity then refer to probe to the sensitive of the plane source for being parallel to the probe placement
Degree.So-called collimator resolution (spatial resolution) refers to the ability that collimator probe identifies two closely coupled radioactive sources,
Full duration, that is, halfwidth (full width at the half of multi-purpose point source or line source response curve maximum height at present
Halfmaximum, FWHM) it indicates.Resolution ratio is better, and FWHM is smaller.Sensitivity and resolution ratio are in opposite relationship.Higher spirit
Sensitivity, often will be to sacrifice resolution ratio as cost, and vice versa.The design of collimator is exactly to select between sensitivity and resolution ratio
Select optimal compromise matching.Sensitivity and resolution ratio are two important indicators of SPECT, and performance quality directly affects radiological agent
The various parameters that amount, probe positions etc. are closely related with treatment plan.
Due to lacking the analoging detecting device of the SPECT index of correlation such as spatial resolution and level sensitivity at present, giving
When patient formulates associated treatment plan, experience is often relied on, treatment plan has blindness, needs repeatedly to adjust, and is treatment zone
Also to increase dose of radiation suffered by patient compared with burden.Simultaneously as be unable to the correlated performance of simulation detection equipment, to setting
Detection after standby routine quality guarantees and quality control, the new installation of equipment are checked and accepted or overhaul brings problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of SPECT detection devices.
The present invention is achieved through the following technical solutions:
A kind of SPECT detection device, the SPECT detection device includes sensitivity die body and die body fixes device, described
Sensitivity die body includes pedestal, die body lid and empty slot, and the pedestal is equipped with empty slot, and the die body lid is covered on the pedestal
So that the empty slot forms confined space；The fixed device of the die body includes connecting rod, latch segment and bottom plate；Wherein, described sensitive
One end of one end and latch segment for spending die body connects, and the other end of the latch segment and one end of connecting rod connect, the connection
The other end of bar is connect with the bottom plate.
Further, the die body, which covers, is provided with sealing hole, and the sealing hole is equipped with sealing bolt engaged therewith.
Further, one end that the connecting rod is connect with the latch segment, which offers one, can be inserted into test tomography space
The capillary mounting hole of the capillary of resolution ratio.
Further, the SPECT detection device further includes spatial resolution detection die body, the spatial resolution detection
Die body includes two-wire source plate, and the U-shaped line source slot for being caught in line source pipe, filling in the line source slot are offered on the two-wire source plate
There is 99mTc solution (purchased from China with auxiliary limited liability company), the other end of the bottom plate is fixedly connected with the two-wire source plate.
Further, one end that the bottom plate is connect with the two-wire source plate offers line source pipe buttock line slot, when line source pipe
When being caught in the two-wire source slot completely, extra line source pipe is prominent by the line source pipe buttock line slot.Further, the SPECT
Detection device further includes level(l)ing device, and the level(l)ing device includes the Level tune positioned at the upper surface of the bottom plate
Hole and with the Level tune hole cooperation horizontal adjustment bolt, positioned at two-wire source plate upper surface level trough and with it is described
The spirit bubble of level trough cooperation.
Beneficial effects of the present invention:
SPECT detection device provided by the present invention can be used for the spatial resolution and horizontal spirit of simulation detection equipment
Sensitivity, can guarantee in the routine quality of equipment and quality control, the new installation of equipment check and accept or overhaul after detection and be
Treatment planning systems acquisition prepares to play a significant role when a large amount of physical data, is treated using the unit simulation, can be disease
People formulates more accurate treatment plan.
Detailed description of the invention
Fig. 1 is sensitivity detector top view described in the embodiment of the present invention；
Fig. 2 is spatial resolution detection device top view described in the embodiment of the present invention；
Fig. 3 is sensitivity die body sectional front view of the present invention；
Fig. 4 is bottom plate side view of the present invention；
Fig. 5 is that sensitivity die body of the present invention with latch segment is fixedly connected with schematic diagram；
Fig. 6 is latch segment top view of the present invention；
Fig. 7 is latch segment side view of the present invention；
Fig. 8 is connecting rod main view of the present invention；
Fig. 9 is two-wire source plate top view of the present invention；
Figure 10 is the side view after two-wire source plate installation spirit bubble of the present invention；
Figure 11 is Level tune screw rod main view of the present invention；
Figure 12 is line source pipe schematic diagram of the present invention.
Description of symbols: 1- sensitivity detector；12- bottom plate；13- Level tune hole；14- connecting rod；15- locking
Block；16- sensitivity die body；17- die body lid；18- alignment grooves；111- fixation hole；112- fixing threaded hole；113- line source pipe buttock line
Slot；19- sealing hole；2- spatial resolution device；21-U shape line source slot；22- level trough；23- two-wire source plate；The connection of 25- second
Hole；31- empty slot；32- pedestal；4- cuboid groove；The first connecting hole of 51-；7- arc groove；8- capillary mounting hole；10-
Spirit bubble；11- horizontal adjustment bolt；121- line source pipe.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
Illustrate specific embodiment by taking specific embodiment as an example below, it should be understood that specific implementation described herein
Example is only used to explain the present invention, is not intended to limit the present invention.
A kind of SPECT detection device described in the embodiment of the present invention, including sensitivity detector 1, as shown in Figure 1, should
Sensitivity detector 1 includes sensitivity die body 16 and the fixed device of die body, and the fixed device of the die body includes connecting as shown in Figure 1
Extension bar 14, latch segment 15, bottom plate 12；The sensitivity die body 16 includes pedestal 32 as shown in Figure 3, die body lid 17, empty slot 31,
Pedestal 32 is equipped with empty slot 31, and lid 17, which is covered, forms confined space for empty slot 31 on pedestal 32, and die body lid 17 and pedestal 32 are viscous
Knot is fixed together；Wherein, one end of sensitivity die body 16 is connect with latch segment 15, the other end and connecting rod 14 of latch segment 15
Connection, 14 other end of connecting rod are connect with bottom plate 12.
When it is implemented, as shown in Figure 1, Figure 3, die body lid 17 is equipped with sealing hole 19, sealing hole 19 is equipped with matched
Sealing bolt, sealing hole 19 is for injecting radioactive source into the empty slot 31 of die body 16, and sealing bolt is for sealing die body.
When it is implemented, one end that connecting rod 14 is connect with latch segment 15 offers a capillary peace shown in Fig. 1, Fig. 8
Hole 8 is filled, can be inserted into the capillary of test tomography spatial resolution.
When it is implemented, as shown in Figure 1, Figure 6, Figure 7, one end that latch segment 15 and sensitivity die body 16 connect is equipped with arc
Groove 7, the arc groove 7 are the schematic diagram that latch segment is connect with sensitivity die body for being inserted into sensitivity die body 16, Fig. 5, such as
Shown in Fig. 1, Fig. 5, sensitivity die body 16 is equipped with alignment grooves 18, passes through arc groove between latch segment 15 and sensitivity die body 16
7 connections, the fixing threaded hole 112 when connection in alignment grooves 18 and latch segment are aligned on straight line.
When it is implemented, as shown in figure 5, fixing threaded hole 112 is equipped with fixing bolt engaged therewith, when sensitivity die body 16
When being inserted into the arc groove 7, fixing bolt plays the fixed function to sensitivity die body 16.
When it is implemented, one end that latch segment 15 is connect with connecting rod 14 is equipped with the first connecting hole as shown in Fig. 1, Fig. 5-7
51, first connecting hole 51 and connecting rod 14 cooperate, and latch segment 15 is connect with connecting rod 14 by the first connecting hole 51.
When it is implemented, as shown in Figure 1 and Figure 2, one end that bottom plate 12 is connect with connecting rod 14 is offered matches with connecting rod 14
The second connecting hole 25 closed, bottom plate are connect with connecting rod by the second connecting hole 25.
When it is implemented, 12 other end of bottom plate in the sensitivity detector 1 can also be connect with two-wire source plate 23,
The two constitutes spatial resolution detection device 2, and two-wire source plate 23 is equipped with U-shaped line source slot 21, the other end and two-wire of bottom plate 12
Source plate 23 is fixedly connected.
When it is implemented, as shown in Figure 1, Figure 2, Figure 4 shows, one end that bottom plate 12 is connect with two-wire source plate 23 offers Fig. 4 institute
The cuboid groove 4 shown, two-wire source plate are inserted into groove 4, which offers fixation hole 111, the fixation hole
111 are equipped with fixing bolt engaged therewith, and bottom plate is connect with two-wire source plate by cuboid groove 4, and fixing bolt is for solid
The two-wire source plate 23 being positioned in cuboid groove 4.
When it is implemented, uniformly the aqueous solution equipped with radioactivity 99mTc (is purchased from China with auxiliary stock in two-wire source capsule in Figure 12
Part Co., Ltd), which can arbitrarily be bent, and line source pipe size and U-shaped line source slot 21 cooperate, and can be caught in U-shaped line source
It is fixed in slot 21.
When it is implemented, bottom plate 12 shown in FIG. 1 further includes line source pipe buttock line slot 113, when soft line source pipe 121 blocks completely
When in U-shaped line source slot 21 shown in Fig. 9, extra line source pipe is prominent by line source pipe buttock line slot 113.Facilitate and is injected to line source pipe
Radiopharmaceuticals.
When it is implemented, the SPECT detection device further includes level(l)ing device, which includes being located at
The Level tune hole 13 of 12 upper surface of bottom plate and horizontal adjustment bolt engaged therewith 11 (see Figure 11) are located on two-wire source plate 23
The level trough 22 and spirit bubble engaged therewith 10 (see Figure 10) on surface, Figure 10 are the two-wire source plate side view for installing spirit bubble.
In use, spirit bubble 10 is placed in level trough 22, horizontal adjustment bolt 11 is adjusted, is sentenced by bubble in observation spirit bubble
Whether disconnected device is horizontal.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (4)
1. a kind of SPECT detection device, which is characterized in that the SPECT detection device includes that sensitivity die body and die body are fixed
Device, the sensitivity die body include pedestal, die body lid and empty slot, and the pedestal is equipped with empty slot, and the die body lid is covered on
So that the empty slot forms confined space on the pedestal；The fixed device of the die body includes connecting rod, latch segment and bottom plate；Its
In, one end of the sensitivity die body and one end of latch segment connect, and the other end of the latch segment and one end of connecting rod connect
It connects, the other end of the connecting rod is connect with the bottom plate；
One end that the latch segment is connect with the sensitivity die body is equipped with arc groove, correspondingly, on the sensitivity die body
Equipped with the alignment grooves to match with the arc groove, the fixing threaded hole in the alignment grooves and latch segment is located at same straight line
On；
The SPECT detection device further includes spatial resolution detection die body, and the spatial resolution detection die body includes two-wire
Source plate offers the U-shaped line source slot for being caught in line source pipe, the other end of the bottom plate and the two-wire on the two-wire source plate
Source plate is fixedly connected；
The SPECT detection device further includes level(l)ing device, and the level(l)ing device includes positioned at the upper of the bottom plate
The Level tune hole on surface and the horizontal adjustment bolt cooperated with the Level tune hole, positioned at two-wire source plate upper surface
Level trough and the spirit bubble cooperated with the level trough.
2. SPECT detection device according to claim 1, which is characterized in that the die body, which covers, is provided with sealing hole, institute
Sealing hole is stated equipped with sealing bolt engaged therewith.
3. SPECT detection device according to claim 1, which is characterized in that the connecting rod is connect with the latch segment
One end offer one can be inserted into test tomography spatial resolution capillary capillary mounting hole.
4. SPECT detection device according to claim 1, which is characterized in that the bottom plate is connect with the two-wire source plate
One end offer line source pipe buttock line slot, when line source pipe is caught in the U-shaped line source slot completely, extra line source pipe is by the line
Source capsule buttock line slot is prominent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800191.9A CN106108935B (en) | 2016-08-31 | 2016-08-31 | A kind of SPECT detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800191.9A CN106108935B (en) | 2016-08-31 | 2016-08-31 | A kind of SPECT detection device |
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| Publication Number | Publication Date |
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| CN106108935A CN106108935A (en) | 2016-11-16 |
| CN106108935B true CN106108935B (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610800191.9A Active CN106108935B (en) | 2016-08-31 | 2016-08-31 | A kind of SPECT detection device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109480879B (en) * | 2018-12-11 | 2023-01-13 | 中检集团南方测试股份有限公司 | Detection method of radioactive medical equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1923000A2 (en) * | 2006-11-15 | 2008-05-21 | Centre Hospitalier Regional Universitaire de Lille | Phantom for quality control in tomographic imaging, in particular in PET imaging |
| KR20080111737A (en) * | 2007-06-19 | 2008-12-24 | 대한민국 (식품의약품안전청장) | Phantom for evaluating performance of magnet resonance imager |
| US8183534B2 (en) * | 2007-11-21 | 2012-05-22 | Frederic Lacroix | Scintillating fiber dosimeter array |
| CN202960540U (en) * | 2012-08-29 | 2013-06-05 | 上海西门子医疗器械有限公司 | Die body and medical equipment |
| CN103221841A (en) * | 2010-11-23 | 2013-07-24 | 皇家飞利浦电子股份有限公司 | PET calibrations with varying coincidence windows |
| CN206473335U (en) * | 2016-11-10 | 2017-09-08 | 北京康科达科技有限公司 | A kind of PET sensitivity detectors |
-
2016
- 2016-08-31 CN CN201610800191.9A patent/CN106108935B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1923000A2 (en) * | 2006-11-15 | 2008-05-21 | Centre Hospitalier Regional Universitaire de Lille | Phantom for quality control in tomographic imaging, in particular in PET imaging |
| KR20080111737A (en) * | 2007-06-19 | 2008-12-24 | 대한민국 (식품의약품안전청장) | Phantom for evaluating performance of magnet resonance imager |
| US8183534B2 (en) * | 2007-11-21 | 2012-05-22 | Frederic Lacroix | Scintillating fiber dosimeter array |
| CN103221841A (en) * | 2010-11-23 | 2013-07-24 | 皇家飞利浦电子股份有限公司 | PET calibrations with varying coincidence windows |
| CN202960540U (en) * | 2012-08-29 | 2013-06-05 | 上海西门子医疗器械有限公司 | Die body and medical equipment |
| CN206473335U (en) * | 2016-11-10 | 2017-09-08 | 北京康科达科技有限公司 | A kind of PET sensitivity detectors |
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