CN102451037A - Human body target positioning device and method - Google Patents
Human body target positioning device and method Download PDFInfo
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- CN102451037A CN102451037A CN201010514964XA CN201010514964A CN102451037A CN 102451037 A CN102451037 A CN 102451037A CN 201010514964X A CN201010514964X A CN 201010514964XA CN 201010514964 A CN201010514964 A CN 201010514964A CN 102451037 A CN102451037 A CN 102451037A
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- therapeutic target
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Abstract
The invention relates to a human body target positioning device and method, which are applied to CT (Computerized Tomography) scanning. In the device, an adopted positioning identification rod is a graphite carbon core, and the graphite carbon core serving as the positioning identification rod is further arranged in a groove of a substrate. According to the human body target positioning device provided by the invention, positioning of a head-neck part target and a body part target can be designed on one positioning substrate, so that positioning can be performed more quickly and conveniently at one time during three-dimensional oriented diagnosis or treatment of a patient suffering from body part and head-neck part diseases. The identification rod of the positioning device is made of a readily-available material, and has no scattered ray influence on X-rays or gamma-rays of any energy, so that the positioning accuracy of targets in a human body is increased.
Description
Technical field
The present invention relates to the positioner of radiodiagnosis and radiotherapy equipment, be specifically related to a kind of human therapeutic target positioner and localization method that is used for CT scan.
Background technology
Since carrying out SRT, its locate mode is main with N shape positioning mark bar and V-arrangement positioning mark bar.The material of sign bar mainly is to be main with carbon fiber, have with the aluminium wire bar that makes a check mark, the shortcoming of carbon fiber is impossible be processed into very thin (in the 3mm), the thickness of sign bar directly influences the precision of Z coordinate.Aluminium wire is a kind of metal material, has the problem of scattering, causes the positioning mark point edge on the CT sheet unclear.And the navigation system of N shape location (or V-arrangement location) sign bar is that head and body portion leave mostly, can not satisfy such as the such head of lung cancer with brain metastasis, body all needs do the radiocurable case of fixing a point.
China utility model patent 96246841.X discloses a kind of 3 D positioning equipment; Its positioning mark bar comprises that a group length equates; And the straight-bar parallel with box bottom and a straight-bar angled with above-mentioned parallel bar, constituting a kind of N shape positioning mark bar, the positioning mark bar fills CuSO in being
4The lucite tube of solution, its diameter is thicker, and locating effect is not ideal enough, and, also can't carry out the one-time positioning of body and incidence.
Summary of the invention
The objective of the invention is to defective, a kind of human therapeutic target positioner is provided, can either improve the positioning accuracy of target spot in the human body, significantly reduce the cost of producing this positioner simultaneously again to prior art.
Technical scheme of the present invention is following: a kind of human therapeutic target positioner, the positioning mark bar that this device adopted is the graphitic carbon core.
Further, aforesaid human therapeutic target positioner, wherein, this device comprises a substrate, on substrate, is provided with groove, is provided with the graphitic carbon core as the positioning mark bar in the groove.
Further, aforesaid human therapeutic target positioner, wherein, the groove on the described substrate is by two parallel straight troughs and the N connected in star that skewed slot connects to form.
Further, aforesaid human therapeutic target positioner wherein, is provided with two groups of N connected in stars of corresponding incidence of difference and body on substrate, and every group of N connected in star connected to form by two parallel straight troughs and a skewed slot, is equipped with the graphitic carbon core in every groove.
Further, aforesaid human therapeutic target positioner, wherein, described substrate is the PVC plate.
Further, aforesaid human therapeutic target positioner, wherein, the cross section of described groove is circular, the diameter d of groove
0Scope is 0＜d
0＜3mm.
A kind of human therapeutic target localization method, this method adopt the graphitic carbon core as the positioning mark bar.
Further, aforesaid human therapeutic target localization method wherein, is installed in the graphitic carbon core in the groove of substrate.
Further, aforesaid human therapeutic target localization method, wherein, described groove is a N shape, is connected to form by two parallel straight troughs and a skewed slot.
Further, aforesaid human therapeutic target localization method, wherein, this method is provided with two groups of N connected in stars of corresponding incidence of difference and body on same substrate, the graphitic carbon core is set in groove; The positioning mark point that the parallel bar of N connected in star and brace stay on the CT sheet when utilizing CT scan; Calculate the Z coordinate of simulation target spot center in the positioner coordinate system, the X coordinate and the Y coordinate of simulation target spot centre coordinate position directly measure on the CT sheet.
Beneficial effect of the present invention is following: human therapeutic target positioner provided by the present invention and method the positioning design of incidence and body target spot on location substrate; When carrying out stereotaxis diagnosis or treatment for the disease that body and incidence are arranged simultaneously; Can one-time positioning, more efficient and convenient.The material of this positioner sign bar is easy to obtain, and its X ray or gamma-rays to any energy does not all have the influence of scattered rays, thereby has improved the positioning accuracy of target spot in the human body.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the present invention;
Fig. 2-1, Fig. 2-2 are target spot positioning principle figure of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment structure of the present invention and principle are described in detail.
Crucial part of the present invention is to select for use the positioning mark bar of graphitic carbon core as the human therapeutic target positioner, and the diameter of graphitic carbon core can be accomplished less than within the 3mm, thereby solve the defective that present positioning mark bar adopts carbon fiber or aluminium wire material to be brought.The graphitic carbon core is built into N shape structure (also can be v-shaped structure); The positioning mark point that the parallel bar of N shape graphitic carbon core and brace stay on the CT sheet during with CT scan; Calculate the Z coordinate of simulation target spot center in the positioner coordinate system, the X coordinate and the Y coordinate of simulation target spot centre coordinate position directly measure on the CT sheet.
As shown in Figure 1; For of the present invention preferred embodiment a kind of; The human therapeutic target positioner comprises a substrate 1; On substrate 1, be provided with two groups of N connected in stars 2,3 (also can only keep one group of N connected in star) of corresponding incidence of difference and body, every group of N connected in star connected to form by two parallel straight troughs and a skewed slot, is equipped with the graphitic carbon core in every groove.The material of substrate is PVC plate or other similar sheet material, and it is of a size of 1200mm * 50mm * 15mm, is arranged on the tank floor of CT scanner.Patient is fixed in the scope of this device with vacuum bag; Pass through CT scan; Mode by hand or COMPUTER CALCULATION go out X, Y and the Z coordinate of target spot (point-of-interest) in this device coordinate system; According to this three-dimensional coordinate, can target spot be written into treatment position (like SRT) or boot diagnostic, treatment syringe needle to point-of-interest.Groove on the substrate is processed through knife head ball, and the cross section of groove is circular, the diameter d of groove
0Scope is 0＜d
0＜3mm (selecting concrete size as required) adopts the graphitic carbon core material, does not have the scattering problem.The parallel straight trough of having filled the graphitic carbon core is just as the parallel bar of N shape sign bar, and the skewed slot of having filled the carbon core just identifies the brace of bar as N shape.
Shown in Fig. 2-1, each parameter-definition is following among the figure:
d
H: the distance between the incidence N shape sign bar parallel bar;
d
B: the distance between the body N shape sign bar parallel bar;
α: the angle in the incidence N shape sign bar between brace and the parallel bar;
β: the angle in the body N shape sign bar between brace and the parallel bar;
L: incidence N shape sign bar parallel bar length;
D1: distance between incidence CT scan sign bar cross section;
D2: distance between body CT scan sign bar cross section;
Z
0: Z coordinate 0 bit line.
When carrying out concrete positioning action; The simulation target spot is fixed on H position (incidence) or B position (body) among Fig. 2-1; As long as will simulate the interior optional position of parallel bar that target spot is fixed on head or body N shape sign bar, carry out CT scan, scanning line must pass through the center of simulation target spot.Scanning line through H position target spot is AB, and the scanning line of process B position target spot is CD.
The X and the Y coordinate of simulation target spot centre coordinate position need not calculate, and can on the CT sheet, directly measure, and localized purpose is to obtain simulating the Z coordinate of target spot in this positioner coordinate system.
Shown in Fig. 2-2, behind the CT scan, parallel bar and brace will stay the positioning mark point on the CT sheet, if the distance of the parallel bar that on the CT sheet, records equals d
H, simulating target spot so must be in incidence, the Z coordinate Calculation of incidence is following:
Z
Head=d1/tg α
If the distance of the parallel bar that on the CT sheet, records equals d
B, simulating target spot so must be at body, the Z coordinate Calculation of body is following:
Z
Body=d2/tg β+L
The present invention is simple in structure, and is easy to use, and cost of manufacture is low; When carrying out stereotaxis diagnosis or treatment for the disease that body and incidence are arranged simultaneously; Can one-time positioning, the X ray or the gamma-rays of any energy all do not had the influence of scattered rays, thereby improved the positioning accuracy of target spot in the human body.
Claims (10)
1. human therapeutic target positioner, it is characterized in that: the positioning mark bar that this device adopted is the graphitic carbon core.
2. human therapeutic target positioner as claimed in claim 1 is characterized in that: this device comprises a substrate (1), on substrate (1), is provided with groove, is provided with the graphitic carbon core as the positioning mark bar in the groove.
3. human therapeutic target positioner as claimed in claim 2 is characterized in that: the groove on the described substrate (1) is by two parallel straight troughs and the N connected in star that skewed slot connects to form.
4. human therapeutic target positioner as claimed in claim 2; It is characterized in that: the two groups of N connected in stars (2,3) that on substrate (1), are provided with corresponding incidence of difference and body; Every group of N connected in star connected to form by two parallel straight troughs and a skewed slot, is equipped with the graphitic carbon core in every groove.
5. human therapeutic target positioner as claimed in claim 2 is characterized in that: described substrate (1) is the PVC plate.
6. like claim 2 or 3 or 4 or 5 described human therapeutic target positioners, it is characterized in that: the cross section of described groove is circle, the diameter d of groove
0Scope is 0＜d
0＜3mm.
7. human therapeutic target localization method is characterized in that: this method adopts graphitic carbon core as the positioning mark bar.
8. human therapeutic target localization method as claimed in claim 7 is characterized in that: the graphitic carbon core is installed in the groove of substrate.
9. human therapeutic target localization method as claimed in claim 8 is characterized in that: described groove is a N shape, is connected to form by two parallel straight troughs and a skewed slot.
10. human therapeutic target localization method as claimed in claim 8 is characterized in that: two groups of N connected in stars of corresponding incidence of difference and body are set on same substrate, the graphitic carbon core is set in groove; The positioning mark point that the parallel bar of N connected in star and brace stay on the CT sheet when utilizing CT scan; Calculate the Z coordinate of simulation target spot center in the positioner coordinate system, the X coordinate and the Y coordinate of simulation target spot centre coordinate position directly measure on the CT sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514964XA CN102451037A (en) | 2010-10-14 | 2010-10-14 | Human body target positioning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514964XA CN102451037A (en) | 2010-10-14 | 2010-10-14 | Human body target positioning device and method |
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| Publication Number | Publication Date |
|---|---|
| CN102451037A true CN102451037A (en) | 2012-05-16 |
Family
ID=46034983
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010514964XA Pending CN102451037A (en) | 2010-10-14 | 2010-10-14 | Human body target positioning device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022140986A1 (en) * | 2020-12-28 | 2022-07-07 | 西安大医集团股份有限公司 | Method and apparatus for determining arcing start and end angles for multi-target treatment, and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321403Y (en) * | 1997-06-07 | 1999-06-02 | 深圳奥沃国际科技发展有限公司 | Stereotaxis apparatus |
| CN1345613A (en) * | 2000-09-25 | 2002-04-24 | 王乔生 | Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system |
| WO2007127970A2 (en) * | 2006-04-27 | 2007-11-08 | Qfix Systems, Llc | A support device and method for compensation of patient weight |
| CN201058181Y (en) * | 2007-07-07 | 2008-05-14 | 山东新华医疗器械股份有限公司 | Positioning device for whole body stereo orienting radiation therapy |
| WO2010006846A1 (en) * | 2008-07-15 | 2010-01-21 | Siemens Aktiengesellschaft | X-ray source and x-ray system having such an x-ray source |
-
2010
- 2010-10-14 CN CN201010514964XA patent/CN102451037A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321403Y (en) * | 1997-06-07 | 1999-06-02 | 深圳奥沃国际科技发展有限公司 | Stereotaxis apparatus |
| CN1345613A (en) * | 2000-09-25 | 2002-04-24 | 王乔生 | Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system |
| WO2007127970A2 (en) * | 2006-04-27 | 2007-11-08 | Qfix Systems, Llc | A support device and method for compensation of patient weight |
| CN201058181Y (en) * | 2007-07-07 | 2008-05-14 | 山东新华医疗器械股份有限公司 | Positioning device for whole body stereo orienting radiation therapy |
| WO2010006846A1 (en) * | 2008-07-15 | 2010-01-21 | Siemens Aktiengesellschaft | X-ray source and x-ray system having such an x-ray source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022140986A1 (en) * | 2020-12-28 | 2022-07-07 | 西安大医集团股份有限公司 | Method and apparatus for determining arcing start and end angles for multi-target treatment, and electronic device |
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Application publication date: 20120516 |