CN100484591C - Method for positioning radioactive treatment - Google Patents
Method for positioning radioactive treatment Download PDFInfo
- Publication number
- CN100484591C CN100484591C CNB2005100646005A CN200510064600A CN100484591C CN 100484591 C CN100484591 C CN 100484591C CN B2005100646005 A CNB2005100646005 A CN B2005100646005A CN 200510064600 A CN200510064600 A CN 200510064600A CN 100484591 C CN100484591 C CN 100484591C
- Authority
- CN
- China
- Prior art keywords
- image
- positioner
- focus
- center
- radiocurable
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- 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 focus 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 the bed at mobile patient or patient place again according to above-mentioned potential difference, 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 focus 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) laser rays centrally aligned positioner center, again according to above-mentioned potential difference come mobile patient or patient place the bed, make the laser rays center overlap with the focus centre, promptly determine need 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 7 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 focus 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 the bed at mobile patient or patient place again according to above-mentioned potential difference, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1853737A CN1853737A (en) | 2006-11-01 |
| CN100484591C true CN100484591C (en) | 2009-05-06 |
Family
ID=37194381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100646005A Expired - Fee Related CN100484591C (en) | 2005-04-18 | 2005-04-18 | Method for positioning radioactive treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484591C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053412A (en) * | 2011-11-15 | 2014-09-17 | 菲亚戈股份有限公司 | Registering method, position detecting system, and scanning instrument |
Families Citing this family (7)
| 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 |
| DE102012205165A1 (en) * | 2012-03-29 | 2013-10-02 | Fiagon Gmbh | Medical system with a position detection device for detecting the position and orientation of an instrument |
| 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 |
| 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 |
| CN109789314B (en) * | 2017-07-28 | 2021-04-02 | 西安大医集团股份有限公司 | Radiotherapy equipment, tumor tracking device and storage medium |
| 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 |
-
2005
- 2005-04-18 CN CNB2005100646005A patent/CN100484591C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053412A (en) * | 2011-11-15 | 2014-09-17 | 菲亚戈股份有限公司 | Registering method, position detecting system, and scanning instrument |
| CN104053412B (en) * | 2011-11-15 | 2017-03-22 | 菲亚戈股份有限公司 | Registering method, position detecting system, and scanning instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1853737A (en) | 2006-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100484591C (en) | Method for positioning radioactive treatment | |
| Yan et al. | A phantom study on the positioning accuracy of the Novalis Body system | |
| CN101015723B (en) | Robot radiation therapy system | |
| CN101336120B (en) | Device and method for positioning a patient in a radiation therapy apparatus | |
| US20080031414A1 (en) | Method for Creating 3D Coordinate Systems in Image Space for Device and Patient Table Location and Verification | |
| CN101072540B (en) | In bore CT localization marking lasers | |
| US20030206614A1 (en) | Method and apparatus for alignment of medical radiation beams using a body frame | |
| CN2910255Y (en) | Robot radiation therapeutical system | |
| US20100312104A1 (en) | System and method for calibrating and positioning a radiation therapy treatment table | |
| CN1612713A (en) | Apparatus and method for registration, guidance, and targeting of external beam radiation therapy | |
| CN102049106B (en) | Precise image positioning system and method of radiotherapy system of interfractionated radiotherapy | |
| CN111514476B (en) | Calibration method for X-ray image guidance system | |
| JP6578574B2 (en) | Radiation therapy device calibration phantom | |
| CN110038233B (en) | Positioning deviation determining device | |
| Tomé et al. | Commissioning and quality assurance of an optically guided three‐dimensional ultrasound target localization system for radiotherapy | |
| CN111836665B (en) | Radiotherapy system and verification device and verification method thereof | |
| CN1522672A (en) | Tridimensional orienting tumour thermotherapy system | |
| CN101647710B (en) | Operation positioning navigating device | |
| US20130158386A1 (en) | System for ensuring precision in medical treatment | |
| CN112402816A (en) | Automated patient positioning system and method | |
| CN1522674A (en) | Trunk tridimensional orienting method and device capable of resetting | |
| CN203436699U (en) | Multipurpose image guide and positioning system calibration device | |
| JPH05154211A (en) | Medical treatment device and method to inspect target position | |
| US6829500B2 (en) | Method and device for determining access to a subsurface target | |
| CN213491591U (en) | Calibration phantom body used in X-ray image guiding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING DAHENG MEDICAL EQUIPMENT CO., LTD Free format text: FORMER OWNER: SHI RONG Effective date: 20090612 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090612 Address after: Beijing City, Haidian District city Changchun Road No. 11 building 10 storey block C2 room 1005 zip code: 100089 Patentee after: Beijing Daheng Medical Equipment Co., ltd. Address before: Beijing City, Haidian District city Changchun Road No. 11 building C2 block 10 layer zip code: 100089 Co-patentee before: Xie Huchen Patentee before: Shi Rong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20130418 |