CN1853737A - Method for positioning radioactive treatment - Google Patents
Method for positioning radioactive treatment Download PDFInfo
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- CN1853737A CN1853737A CNA2005100646005A CN200510064600A CN1853737A CN 1853737 A CN1853737 A CN 1853737A CN A2005100646005 A CNA2005100646005 A CN A2005100646005A CN 200510064600 A CN200510064600 A CN 200510064600A CN 1853737 A CN1853737 A CN 1853737A
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- radiocurable
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000002285 radioactive effect Effects 0.000 title 1
- 238000001959 radiotherapy Methods 0.000 claims abstract description 9
- 230000001225 therapeutic effect Effects 0.000 claims abstract description 8
- 230000004807 localization Effects 0.000 claims description 14
- 238000002372 labelling Methods 0.000 claims description 13
- 230000017105 transposition Effects 0.000 claims description 8
- 230000003902 lesion Effects 0.000 claims description 6
- 238000011262 co‐therapy Methods 0.000 claims description 5
- 238000005481 NMR spectroscopy Methods 0.000 claims description 4
- 239000003550 marker Substances 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 7
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Radiation-Therapy Devices (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
A location method for the radiotherapy includes such steps as arranging a locator able to generate image marker close to the focus to be treated, image scanning to obtain the focus image sequence on each layer, judging the center of said locator according to the image markers of focus, determining the position difference between the centers of locator and focus, and moving the body of patient for aligning the laser beam center of therapeutic apparatus with the center of locator.
Description
Technical field
The present invention relates to a kind of radiocurable localization method, be meant a kind of radiocurable localization method that is used for tumor especially.
Background technology
The stage that tumour radiotherapy has developed into accurate radiotherapy by common radiotherapy or conventional radiotheraphy.Accurate radiotherapy comprises three aspect implications: (1) is the location accurately; (2) accurately plan; (3) accurate treatment, basis wherein are accurate location.Location technology is exactly accurately to determine the position such as centre coordinate such as grade of irradiation tumor, by setting up three-dimensional cartesian coordinate system on one's body the patient, thereby reach the isocentric purpose of accurately determining and represent the plan of the big or small spatial distribution of tumor and irradiation tumor with rectangular coordinate, thereby realize that according to the centre coordinate that waits that calculates tumor irradiation plan reaches the purpose of accurate treatment.Positioning accuracy is 1 millimeter, i.e. the precision of medical image (as CT).
Localization method adopts the framework location usually at present, determines patient's knub position with a framework with fixed coordinates initial point mark three dimensional space coordinate, thereby realizes the accurate irradiation treatment of tumor; Weak point is: (1) can not make full use of the scanning area of medical imaging device (as CT), and its consequence is that the bigger and fat patient of some bodily forms can not locate with the method; (2) cost of positioning framework is higher relatively; (3) operation relatively bothers.
Summary of the invention
Technical problem to be solved by this invention is to avoid above-mentioned deficiency of the prior art, and proposes a kind of frameless accurate location, radiocurable localization method simple to operate.
Technical scheme provided by the present invention is: a kind of radiocurable localization method, and this localization method includes following steps:
Near need radiotherapy lesions position, the positioner that can form the image labelling is set;
Carry out image scan, obtain corresponding each layer focus image sequence;
According to focus image labelling, in each image bearing layer, judge the center of positioner:
When a. showing two labelling bright spots, the centre that is centered close to image bearing layer of positioner;
When b. showing a labelling bright spot, being centered close on the image bearing layer of positioner;
Determine the potential difference in the center and the focus centre of positioner;
Utilize the laser rays centrally aligned positioner center of therapeutic equipments, come mobile patient according to above-mentioned potential difference again, make the laser rays center overlap with the focus centre, promptly determining needs radiocurable position.
Further, described positioner is three transposition boards, is separately positioned on lesions position neighbouring both sides and top.
Further, described image scan is CT image or nuclear magnetic resonance image.
Further, described therapeutic equipments be linear accelerator or
60The Co therapy apparatus.
The present invention has following advantage: make full use of the scanning area of medical imaging device (as CT, MRI), the position of accurately orienting focus; Do not adopt frame structure, reduced the cost of treatment, and the whole operation process is simple relatively, be convenient to grasp.
Description of drawings
Fig. 1 is a flow chart of the present invention.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As scheme a kind of radiocurable localization method, this localization method includes following steps:
Near need radiotherapy lesions position, the positioner that can form the image labelling is set: three transposition boards are separately positioned on lesions position neighbouring both sides and top;
Carry out image (CT or nuclear magnetic resonance image) scanning, obtain corresponding each layer focus image sequence;
According to focus image labelling, in each image bearing layer, judge the center of positioner:
When a. showing two labelling bright spots, the centre that is centered close to image bearing layer of positioner;
When b. showing a labelling bright spot, being centered close on the image bearing layer of positioner;
Determine the potential difference in the center and the focus centre of positioner;
Utilize therapeutic equipments (linear accelerator or
60The Co therapy apparatus) mobile patient is come according to above-mentioned potential difference again in laser rays centrally aligned positioner center, makes the laser rays center overlap with the focus centre, and promptly determining needs radiocurable position.
Utilize three transposition boards of positioner to set up a rectangular coordinate system on one's body, reach pinpoint purpose the patient.Three transposition boards of positioner are laid one at the body surface overhead, and both sides are respectively placed one.(be called for short: three laser lighting lines MRI) (one of overhead, each one of both sides are in same vertical plane) central lines with CT or nuclear magnetic resonance image respectively in three cross points of three transposition boards.Have two cross-wires lines on each transposition board, be also referred to as magic cross hairs.This specification requirement intersects the center, the as close as possible target area of zero of magic cross.During the location, in the image chamber of CT or MRI by laser lamp, make an one metal wire or the thin plastic tube of each magic cross (use thin plastic tube among the MRI, irritate in it MRI imaging solution arranged) overlap with the one laser rays, another laser rays is crossed the intersection point of magic cross, be fixed on then on patient's film or the body film, also can directly place be fixed on the epidermis or the fixed body frame on.Note center, the as close as possible target area of the zero of magic cross.Next step is with the place origin position of special-purpose ink or greasepaint labelling evil spirit cross.Scan patient then.
On CT or MRI tomoscan image, each transposition board will show 1～2 bright spot.If each has only a bright spot to represent that this image bearing layer is crossed the center of magic cross on certain image bearing layer; Represent that the zero of magic cross navigation system is between two image bearing layers if there are two bright spots.
On image, lay a launched field, changing launched field centre coordinate z coordinate makes the bright spot of magic cross become one, revising launched field x makes the horizontal line of launched field overlap with the magic target cross point of left and right sides with the y coordinate, the 3rd magic cross of centrage overlaps, and at this moment the center of launched field is exactly the zero of magic cross navigation system.
Since magic cross coordinate system etc. the center with respect to coordinate systems in image, the plan that on image, is provided with etc. the center also with respect to the image coordinate system.Because they unite based on the same coordinate system, thus radiotherapy planning etc. the center be equivalent to magic cross positioning coordinate system and only need do the coordinate translation conversion and just can realize.Can obtain under magic cross navigation system, being equivalent to magic cross zero (x, y, the deviant of each coordinate z) thus.
As linear accelerator or
60Pendulum position in the therapeutic rooms such as Co therapy apparatus, at first find the initial point of magic cross navigation system: only need with linear accelerator or
60Laser center indicatrix on the Co therapy apparatus is aimed at magic cross (repeating image location work), and zero finds like this.Then by the side-play amount of center (focus center) such as irradiation in the treatment plan report and initial point, the bed at mobile patient or patient place.The isocentric position of therapeutic equipment is exactly the isocentric position of calculated irradiation like this.Checking then, treatment.
Claims (4)
1, a kind of radiocurable localization method, this localization method includes following steps:
Near need radiotherapy lesions position, the positioner that can form the image labelling is set;
Carry out image scan, obtain corresponding each layer focus image sequence;
According to focus image labelling, in each image bearing layer, judge the center of positioner:
When a. showing two labelling bright spots, the centre that is centered close to image bearing layer of positioner;
When b. showing a labelling bright spot, being centered close on the image bearing layer of positioner;
Determine the potential difference in the center and the focus centre of positioner;
Utilize the laser rays centrally aligned positioner center of therapeutic equipments, come mobile patient according to above-mentioned potential difference again, make the laser rays center overlap with the focus centre, promptly determining needs radiocurable position.
2, radiocurable localization method according to claim 1 is characterized in that: described positioner is three transposition boards, is separately positioned on lesions position neighbouring both sides and top.
3, radiocurable localization method according to claim 1 is characterized in that: described image scan is CT image or nuclear magnetic resonance image.
4, radiocurable localization method according to claim 1 is characterized in that: described therapeutic equipments be linear accelerator or
60The Co therapy apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100646005A CN100484591C (en) | 2005-04-18 | 2005-04-18 | Method for positioning radioactive treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100646005A CN100484591C (en) | 2005-04-18 | 2005-04-18 | Method for positioning radioactive treatment |
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| Publication Number | Publication Date |
|---|---|
| CN1853737A true CN1853737A (en) | 2006-11-01 |
| CN100484591C CN100484591C (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100646005A Expired - Fee Related CN100484591C (en) | 2005-04-18 | 2005-04-18 | Method for positioning radioactive treatment |
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| CN (1) | CN100484591C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049106A (en) * | 2010-12-14 | 2011-05-11 | 张岩 | Precise image positioning system and method of radiotherapy system of interfractionated radiotherapy |
| CN102921114A (en) * | 2012-10-09 | 2013-02-13 | 重庆同康骨科医院有限公司 | Three-dimensional positioning method |
| CN104324447A (en) * | 2013-07-23 | 2015-02-04 | 江苏富科思科技有限公司 | Method for accurately locking isocenter |
| CN104349739A (en) * | 2012-03-29 | 2015-02-11 | 菲亚戈股份有限公司 | Medical navigation system with wirelessly connected, touch-sensitive screen |
| CN106621078A (en) * | 2017-03-09 | 2017-05-10 | 苏州大学附属第二医院 | Laser positioning system and system used for radiation therapy |
| CN108852400A (en) * | 2018-07-02 | 2018-11-23 | 沈阳东软医疗***有限公司 | A kind of method and device for realizing therapeutic community's location verification |
| WO2019019188A1 (en) * | 2017-07-28 | 2019-01-31 | 西安大医集团有限公司 | Tumor tracking method and device and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011119073A1 (en) * | 2011-11-15 | 2013-05-16 | Fiagon Gmbh | Registration method, position detection system and scanning instrument |
-
2005
- 2005-04-18 CN CNB2005100646005A patent/CN100484591C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049106B (en) * | 2010-12-14 | 2012-07-25 | 张岩 | Precise image positioning system and method of radiotherapy system of interfractionated radiotherapy |
| CN102049106A (en) * | 2010-12-14 | 2011-05-11 | 张岩 | Precise image positioning system and method of radiotherapy system of interfractionated radiotherapy |
| CN104349739A (en) * | 2012-03-29 | 2015-02-11 | 菲亚戈股份有限公司 | Medical navigation system with wirelessly connected, touch-sensitive screen |
| CN102921114A (en) * | 2012-10-09 | 2013-02-13 | 重庆同康骨科医院有限公司 | Three-dimensional positioning method |
| CN102921114B (en) * | 2012-10-09 | 2016-08-24 | 重庆同康骨科医院有限公司 | A kind of 3-D positioning method |
| CN104324447B (en) * | 2013-07-23 | 2017-10-20 | 江苏富科思科技有限公司 | A kind of isocentric method of accurate lock |
| CN104324447A (en) * | 2013-07-23 | 2015-02-04 | 江苏富科思科技有限公司 | Method for accurately locking isocenter |
| CN106621078A (en) * | 2017-03-09 | 2017-05-10 | 苏州大学附属第二医院 | Laser positioning system and system used for radiation therapy |
| CN106621078B (en) * | 2017-03-09 | 2023-05-23 | 苏州大学附属第二医院 | Laser positioning system and positioning method for radiotherapy |
| WO2019019188A1 (en) * | 2017-07-28 | 2019-01-31 | 西安大医集团有限公司 | Tumor tracking method and device and storage medium |
| US11132798B2 (en) | 2017-07-28 | 2021-09-28 | Our United Corporation | Tumor tracking method and device, and storage medium |
| CN108852400A (en) * | 2018-07-02 | 2018-11-23 | 沈阳东软医疗***有限公司 | A kind of method and device for realizing therapeutic community's location verification |
| CN108852400B (en) * | 2018-07-02 | 2022-02-18 | 东软医疗***股份有限公司 | Method and device for realizing position verification of treatment center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100484591C (en) | 2009-05-06 |
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