CN104161538A - Medical CT machine based on Compton backscatter scanning technology - Google Patents
Medical CT machine based on Compton backscatter scanning technology Download PDFInfo
- Publication number
- CN104161538A CN104161538A CN201410426026.2A CN201410426026A CN104161538A CN 104161538 A CN104161538 A CN 104161538A CN 201410426026 A CN201410426026 A CN 201410426026A CN 104161538 A CN104161538 A CN 104161538A
- Authority
- CN
- China
- Prior art keywords
- machine
- medical
- cbs
- technology
- scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to the field of medical detection, and particularly discloses a medical CT machine based on the Compton backscatter scanning technology. The medical CT machine comprises an X-ray machine ball tube, a front collimator, an amorphous silicon flat-panel detector, a rear collimator and an object to be detected. A first fine adjustment connector is arranged above the X-ray machine ball tube, and a first scanning head sliding sleeve is connected with the first fine adjustment connector and arranged at one end of a scanning head support in a sleeved mode; a second scanning head sliding sleeve is arranged at the other end of the scanning head support in a sleeved mode and connected with a second fine adjustment connector on the amorphous silicon flat-panel detector. The CBS-CT machine is extremely low in radiation dosage, the radiation dosage is tiny, so that the CBS-CT machine is harmless to a human body, the CBS technology is used for detecting low-density matters such as human tissue and organs, the sensitivity of the CBS technology is much higher than that of the transmission (TR) technology, an accurate scanning positioning bed is not needed, therefore, field use of the medical CT machine is convenient, CSB-CT can be conducted in wards, in the field and on 120 ambulances, and the medical CT machine is small in size, low in weight, simple to shield, simple and convenient to operate and convenient to move.
Description
Technical field
The present invention relates to medical science detection field, specifically a kind of Medical CT machine based on compton backscattering scanning technique.
Background technology
So far, no matter Medical CT machine used, be conventional CT both at home and abroad, or multi-detector CT, be all the TR-CT machine based on transmission of radiation principle, there is more problem in such TR-CT machine, mainly contains: 1, complex structure, volume and weight is excessive, and floor space is large, and shielding protection cost is high; 2, radiation dose is large, larger to harm, and therefore, both at home and abroad industry all advocates that limit is CT; 3, expensive, the CT machine of especially external import, is Eco-powerly about 35 ~ 600,000 dollars every, and high-grade is about 100 ~ 2,250,000 dollars every; 4, need accurate Scan orientation bed, thereby cannot be for scene.
Summary of the invention
The object of the present invention is to provide a kind of micro-dosage, small portable and be applicable to the on-the-spot Medical CT machine based on compton backscattering scanning technique using.
For achieving the above object, the invention provides following technical scheme:
First, adopt new principle: utilize X ray compton backscattering scanning (CBS) image-forming principle, the compton backscattering effect in interacting according to ray and tissue, scattered light subnumber by the one-sided measurement direction outgoing of human body, obtain the electron density distribution in tested tissue and organ in human body, and then process and obtain tested tissue and the specific medical science index of organ as requested, and by means of two and three dimensions image, be CT graphical representation out, its image reconstruction does not rely on algorithm, only the photon counting array of respectively organizing recording need be lined up.This principle is different from TR-CT machine principle, in TR-CT machine, X-ray production apparatus and detector array are placed in respectively the both sides of detected human body, image reconstruction depends on algorithm, Radon transform for example, its essence is two-dimensional problems are turned to one-dimensional problem, integral equations is turned to linear algebraic equation group, solve linear attenuation coefficient.And this principle itself will the close Scan orientation bed of refinement, center of rotation overlaps with the barycenter of detected material, guarantees the quality of image reconstruction.
Second, in CBS-CT machine, because radiographic source and detector array are listed in the same side of testee, thus the X-ray production apparatus of low tube voltage (80 ~ 110KV), low tube current (20 ~ 50mA) can be adopted, and the tube current of TR-CT machine is generally 500 ~ 1000mA.CBS-CT machine has just reduced the roentgendosis that human body is subject to greatly like this, for example, be a CBS-CT and check the suffered dosage≤0.5mSv of human body, 1/2 of public's year effective dose controlling value of the international level of protection regulation of Zhe Shi, is equivalent to 1/26 ~ 1/42 of external spiral CT machine.
The 3rd, this CBS-CT machine adopts small portable, has the movable scanning motion machinery of a plurality of freedoms of motion, facilitates on-the-spot CBS-CT scanning.
The 4th, in this CT machine, adopt X-ray production apparatus cone beam and Amorphous silicon flat-panel detectors, and form CBS geometry with detected human body, be CBS-CBCT, and in TR-CT, detected person's body is positioned between X-ray production apparatus and flat panel detector, belongs to transmission of radiation geometry, is TR-CBCT.So far, in TR-CBCT machine, exist existing image reconstruction algorithm and be only applicable to the wisps such as oral cavity, tooth, and once larger with Multiple Scattering dosage, the serious problems such as sweep time is long, and in CBS-CBCT machine, the scattering metering well having solved in traditional TR-CT machine by hardware and software is large, the serious problems such as sweep time is long, can be to larger object, as tissue and organ, do CT scan imaging, make again Multiple Scattering dosage more than secondary greatly reduce, and greatly shortened sweep time.Thereby CBS-CBCT can more convenient two dimension, the 3D image reconstruction done quickly.
CBS-CT machine of the present invention is compared with TR-CT machine technology, has following outstanding advantage:
(1) radiation dose is minimum, belongs to micro-dosage, to human body without any harm;
(2) CBS technology for detection materials of low density, as tissue and organ, its remolding sensitivity TR technology is much higher;
(3) do not need accurate Scan orientation bed, therefore, be convenient to on-the-spot use, on ward, field and 120 ambulances, can be CBS-CT;
(4) volume is little, lightweight, and shielding is simple, easy and simple to handle, convenient mobile.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-lengthwise movement guide rail, 2-column, upper and lower (X-direction) motion sliding sleeve of 3-, 4-is (Y-direction) motion sliding sleeve laterally, 5-universal joint, 6-probe support, 7-the first fine setting joint, 8-the second fine setting joint, 9-X radiography unit bulb, collimator before 10-, 11-Amorphous silicon flat-panel detectors, collimator after 12-, 13-detected material, the conical beam that 14-X radiography unit sends, 15-is detected the scattered ray that device receives, 16-the first probe sliding sleeve, 17-the second probe sliding sleeve, 18-adopts biography electronic system, 19-power supply, 20-X radiography unit controller, 21-X radiography unit high tension generator, 22-horizontal support, 23-the first cable, 24-the second cable.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of Medical CT machine based on compton backscattering scanning technique, comprises X-ray production apparatus bulb 9, front collimator 10, Amorphous silicon flat-panel detectors 11, rear collimator 12 and detected material 13; Described X-ray production apparatus bulb 9 and Amorphous silicon flat-panel detectors 11, can be very near with detected material 13 all in the same side of detected material 13, and the inclination angle between them is that angle of scattering can regulate by the first fine setting joint 7 and the second fine setting joint 8; Described X-ray production apparatus bulb 9 tops are provided with the first fine setting joint 7, the first probe sliding sleeves 16 and are connected with the first fine setting joint 7, and are enclosed within the one end on probe support 6; Described the second probe sliding sleeve 17 is enclosed within the other end on probe support 6, and be connected with the fine setting of second on Amorphous silicon flat-panel detectors 11 joint 8, by regulating the first probe sliding sleeve 16, the second probe sliding sleeve 17 and probe support 6 can change the size of visual field; Described probe support 6 is provided with universal joint 5, and universal joint 5 is connected with transverse movement sliding sleeve 4, and described transverse movement sliding sleeve 4 is enclosed within on horizontal support 22; Described horizontal support 22 is arranged on column 2 by the sliding sleeve 3 that moves up and down, and column 2 bottoms are connected on lengthwise movement sliding sleeve 1; Described front collimator 10 is connected with X-ray production apparatus bulb 9, and rear collimator 12 is connected with Amorphous silicon flat-panel detectors 11; Described detected material 13 is placed on the below of X-ray production apparatus bulb 9 and Amorphous silicon flat-panel detectors 11; Described X-ray production apparatus high tension generator 21 is connected by the second cable 24 with X-ray production apparatus bulb 9 with X-ray production apparatus controller 20; Described Amorphous silicon flat-panel detectors 11 is connected by the first cable 23 with electronic system 18 and power supply 19 thereof.The 3-D scanning mode of this CT machine: move on lengthwise movement guide rail 1 by column 2, can carry out Z-direction scanning, carry out lifting moving by upper low sleeve 3 on column 2, move on horizontal support 22 by horizontal sliding sleeve 4, can carry out X-direction scanning, for the scanning of each direction, can move or tilt by universal joint 5 and probe support 6, to adapt to the needs of human body different parts and different angles CT scan, X-ray production apparatus high tension generator 21 is connected by the second cable 24 with X ray bulb 9 with X-ray production apparatus controller 20, can be placed on other positions, do not interfere with each other with complete machine 3-D scanning, Amorphous silicon flat-panel detectors is connected by the first cable 23 with electronic system 18 and power supply 19 thereof, do not interfere with each other with complete machine scanning yet, in this CT machine, do not need slip ring mechanism, volume is little, lightweight, shielding is simple, easy and simple to handle, convenient mobile, be applicable to ward, scene on field and 120 ambulances is used, radiation dose is minimum, to human body without any harm, do not need accurate Scan orientation bed.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or basic feature, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. the Medical CT machine based on compton backscattering scanning technique, is characterized in that, employing be new scanning imagery principle---ray compton backscattering scanning technique.
2. the Medical CT machine based on compton backscattering scanning technique according to claim 1, is characterized in that, X-ray production apparatus bulb (9) and Amorphous silicon flat-panel detectors (11) are arranged on the same side of detected material (13).
3. the Medical CT machine based on compton backscattering scanning technique according to claim 1, is characterized in that, the high pressure of X-ray production apparatus is 80 ~ 110KV, and tube current only needs 20 ~ 50mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426026.2A CN104161538A (en) | 2014-08-27 | 2014-08-27 | Medical CT machine based on Compton backscatter scanning technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426026.2A CN104161538A (en) | 2014-08-27 | 2014-08-27 | Medical CT machine based on Compton backscatter scanning technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104161538A true CN104161538A (en) | 2014-11-26 |
Family
ID=51905684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410426026.2A Pending CN104161538A (en) | 2014-08-27 | 2014-08-27 | Medical CT machine based on Compton backscatter scanning technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104161538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901771A (en) * | 2017-03-14 | 2017-06-30 | 丁厚本 | A kind of ray compton backscattering CT scan head and CT Scanner |
| CN107591307A (en) * | 2017-06-28 | 2018-01-16 | 合肥赛英迪光电科技有限公司 | A kind of special construction of the CT machine x-ray tubes of CBS mono- |
| WO2018072668A1 (en) * | 2016-10-17 | 2018-04-26 | 北京君和信达科技有限公司 | Image formation method and system utilizing backscattering |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262708Y (en) * | 1995-09-27 | 1997-09-17 | 丁厚本 | Compton back scattering scanner |
| CN201197713Y (en) * | 2008-05-12 | 2009-02-25 | 丁厚本 | Structure of portable type multifunctional micro-dose medical CT machine |
| CN102183533A (en) * | 2011-05-24 | 2011-09-14 | 深圳市鑫源通电子有限公司 | Channel type X-ray safety check method and device |
| CN202092972U (en) * | 2011-04-02 | 2011-12-28 | 丁厚本 | Human body X-ray security check system structure |
| CN102783968A (en) * | 2012-09-04 | 2012-11-21 | 丁厚本 | Micro-dose medical CBS-CT machine used on site |
| CN203275670U (en) * | 2012-09-28 | 2013-11-06 | 深圳市鑫源通电子有限公司 | Inspection vehicle based on large fanned-beam Compton back scattering scanning technology |
-
2014
- 2014-08-27 CN CN201410426026.2A patent/CN104161538A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262708Y (en) * | 1995-09-27 | 1997-09-17 | 丁厚本 | Compton back scattering scanner |
| CN201197713Y (en) * | 2008-05-12 | 2009-02-25 | 丁厚本 | Structure of portable type multifunctional micro-dose medical CT machine |
| CN202092972U (en) * | 2011-04-02 | 2011-12-28 | 丁厚本 | Human body X-ray security check system structure |
| CN102183533A (en) * | 2011-05-24 | 2011-09-14 | 深圳市鑫源通电子有限公司 | Channel type X-ray safety check method and device |
| CN102783968A (en) * | 2012-09-04 | 2012-11-21 | 丁厚本 | Micro-dose medical CBS-CT machine used on site |
| CN203275670U (en) * | 2012-09-28 | 2013-11-06 | 深圳市鑫源通电子有限公司 | Inspection vehicle based on large fanned-beam Compton back scattering scanning technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072668A1 (en) * | 2016-10-17 | 2018-04-26 | 北京君和信达科技有限公司 | Image formation method and system utilizing backscattering |
| CN106901771A (en) * | 2017-03-14 | 2017-06-30 | 丁厚本 | A kind of ray compton backscattering CT scan head and CT Scanner |
| CN107591307A (en) * | 2017-06-28 | 2018-01-16 | 合肥赛英迪光电科技有限公司 | A kind of special construction of the CT machine x-ray tubes of CBS mono- |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11229409B2 (en) | Mobile imaging ring system | |
| US9872658B2 (en) | Medical imaging diagnosis apparatus, nuclear medicine diagnosis apparatus, X-ray CT apparatus, and bed apparatus | |
| JP4701029B2 (en) | Selection of phantoms for measuring computed tomography dose indices for dose reporting. | |
| CN105873516B (en) | Head and neck imager | |
| EP3106093B1 (en) | Patient positioning and imaging system | |
| US20230105774A1 (en) | Radiological imaging device with improved functioning | |
| CN101961530B (en) | Image-guided radiation therapy equipment | |
| KR102368907B1 (en) | X-ray Generator For Intraoral X-ray Photographing and System Comprising The Same | |
| EP3646793B1 (en) | Mobile imaging ring system | |
| US20150117597A1 (en) | Scanning system for three-dimensional imaging | |
| TWI531356B (en) | A scanning system for three-dimensional imaging | |
| KR101684448B1 (en) | Radiation detector, tomography imaging apparatus thereof, and x-ray imaging apparatus thereof | |
| US7639773B2 (en) | X-ray CT apparatus and method of generating an image | |
| CN104159518A (en) | X-ray beam shaper. | |
| KR20150054666A (en) | Radiation detector, tomography imaging apparatus thereof, and x-ray imaging apparatus thereof | |
| CN103690187A (en) | Device and method for measuring oral BMD (Bone Mineral Density) based on X-ray | |
| CN104161538A (en) | Medical CT machine based on Compton backscatter scanning technology | |
| CN107928702A (en) | Tomoscan radiation protecting systems | |
| JP7443153B2 (en) | X-ray computed tomography device and weight distribution sheet | |
| CN102783968A (en) | Micro-dose medical CBS-CT machine used on site | |
| JP2023028846A (en) | Radiographic apparatus and control method of radiographic apparatus | |
| CN208851507U (en) | A kind of Medical C BS-CT machine scanning system | |
| RU2325117C2 (en) | Topographometric system with tomography function | |
| CN203328709U (en) | CT machine capable of automatically adjusting exposure intensity | |
| KR102329046B1 (en) | system and method for intraoral X-ray photographing and guide holder for the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141126 |