CN104324447B - A kind of isocentric method of accurate lock - Google Patents
A kind of isocentric method of accurate lock Download PDFInfo
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- CN104324447B CN104324447B CN201310309957.XA CN201310309957A CN104324447B CN 104324447 B CN104324447 B CN 104324447B CN 201310309957 A CN201310309957 A CN 201310309957A CN 104324447 B CN104324447 B CN 104324447B
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Abstract
The invention discloses a kind of isocentric method of accurate lock, this method avoid in each radiotherapy, it is required for opening laser, the isocentric operation of manual-alignment, largely reduce and manually operate the error brought and extraneous factor to change caused error, the accuracy of centralized positioning and the efficiency of pendulum position such as greatly improve, reduce the working strength of doctor and physics teacher.
Description
Technical field
The present invention relates to a kind of isocentric method of accurate lock, more particularly to one kind is in radiotherapy, can be accurate
The centre coordinates such as measurement, and being capable of stable for extended periods of time, it is to avoid the method for extraneous factor influence.
Background technology
It is the common method of radiotherapy irradiation technique Deng center radiotherapy, it is that frame pivot is placed in into tumour
Or the radiotherapy carried out on the center of target area.
The center of center radiotherapy such as it is Deng center, wait centralized positioning is accurately the premise of precise radiotherapy, but
Be determined in actual radiation treatment by the convergent point of three road red laser beams etc. center method exist it is more
Uncertainty, the beam width of such as laser, laser influenceed by extraneous factor and produces drift, the center such as can all introduce
Position error so that the quality of accurate radiotherapy is difficult to be guaranteed, and directly affects the clinical treatment outcome of tumour patient.
Reduce these errors, it is necessary to one kind is provided and is not easily susceptible to extraneous factor influence, being capable of maintaining a long-term stability property
The isocentric method of accurate lock.
The content of the invention
In view of the shortcomings of the prior art, present invention solves the technical problem that being to provide a kind of isocentric side of accurate lock
Method, can accurately determine isocentric coordinate, and not changed by extraneous factor is influenceed, and keep long-term stability.
To solve the above problems, the technical proposal of the invention is realized in this way：
The isocentric method of accurate lock of the present invention including being used on accelerator as shown in figure 1, position mark
Positioning mark module, detect and obtain the data detection module of positioning mark coordinate, the meter of center such as calculate and lock
Calculate module.
The invention also discloses a kind of isocentric method of accurate lock.
A kind of isocentric method of accurate lock, including with lower module：
B1：Position mark module；
B2：Data detection module；
B3：Computing module.
In the present invention, the module B1 comprises the following steps：
S1：One or more positioner is installed on accelerator.
In at least one embodiment of the present invention, the positioner is the special positioning bead of infrared tracking system,
But the technical staff in the field is without creative work, just it should be appreciated that having the material of obvious infrared signature using other
The other shapes mark object being made replaces described positioning bead.Therefore similar technical scheme is also not above institute of the present invention
Disclose and claim the scope of protection.
The quantity of the positioner of installation be preferably 3 and more than, to ensure that the translation of positioner detected can
Fully show the change of 3 frees degree (translation in three-dimensional system of coordinate on 3 directions) in three dimensions.If using not enough
3 positioners, can influence positioning precision, more than 3 positioners, although can improve accuracy, but computational complexity
Improve too many, be unworthy from practical application.
In the present invention, the module B2 comprises the following steps：
S2：The laser lamp of accelerator computer room is opened, isocentric position coordinates is detected using registration pen；
S3：Using infrared tracking system, detection is arranged on the position coordinates of the positioner on accelerator.
In the present invention, the module B3 comprises the following steps：
S4：By detect etc. center position coordinates and positioner coordinate input computer, and counted using computer
Calculate positioner and isocentric relative position relation；
S5：When the centre coordinate such as need to detect every time, the positioner coordinate that is detected with reference to infrared tracking system and described
Positioner coordinate with wait center relative position relation, accurately calculate currently isocentric coordinate.
The described current isocentric coordinate that accurately calculates can be non real-time or/and real-time calculating.
The beneficial effects of the present invention are：Compared to prior art, the isocentric method of accurate lock of the present invention being capable of essence
Really measure isocentric position coordinates, it is ensured that isocentric measurement position will not be influenceed by the change of extraneous factor, keep
Long-term stability.The treatment accuracy of center radiation therapy technology such as improve.
Brief description of the drawings
Fig. 1 is the module diagram of the isocentric method of accurate lock of the present invention；
Fig. 2 is the schematic flow sheet of the isocentric method of accurate lock of the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific implementation to this
Invention is described in detail.
The isocentric method of accurate lock of the present invention including being used on accelerator as shown in figure 1, position mark
Positioning mark module, detect and obtain the data detection module of positioning mark coordinate, the meter of center such as calculate and lock
Calculate module.
The invention also discloses a kind of isocentric method of accurate lock, as shown in Fig. 2 this method comprises the following steps：
S1：One or more positioner is installed on accelerator.
In at least one embodiment of the present invention, the positioner is the special positioning bead of infrared tracking system,
But the technical staff in the field is without creative work, just it should be appreciated that can be with obvious infrared signature using other
Material be made other shapes mark object replace positioning bead.Therefore similar technical scheme is also not above institute of the present invention
Disclose and claim the scope of protection.
The quantity of the positioner of installation be preferably 3 and more than, to ensure that the translation of positioner detected can
Fully show the change of 3 frees degree (translation in three-dimensional system of coordinate on 3 directions) in three dimensions.If using not enough
3 positioners, can influence positioning precision, more than 3 positioners, although can improve accuracy, but computational complexity
Improve too many, be unworthy from practical application.
S2：The laser lamp of accelerator computer room is opened, isocentric position coordinates is detected using registration pen；
S3：Using infrared tracking system, detection is arranged on the position coordinates of the positioner on accelerator；
S4：By detect etc. center position coordinates and positioner coordinate input computer, and counted using computer
Calculate positioner and isocentric relative position relation；
S5：When the centre coordinate such as need to detect every time, the positioner coordinate that is detected with reference to infrared tracking system and described
Positioner coordinate with wait center relative position relation, accurately calculate currently isocentric coordinate.
The described current isocentric coordinate that accurately calculates can be non real-time or/and real-time calculating.
Compared to prior art, the isocentric method of accurate lock of the present invention is avoided in each treatment, will be opened
Laser, the isocentric operation of manual-alignment eliminates artificial operating error and the caused error of extraneous factor change, can be very big
The accuracy of the centralized positionings such as ground lifting and the efficiency of pendulum position, the working strength of reduction doctor and physics teacher.
In particular, for the common skill personnel of this area, that is made under the teachings of the present invention is directed to
The equivalence changes of the present invention, should be included in the scope that scope of the present invention patent is advocated.
Claims (4)
1. a kind of isocentric method of accurate lock, it is characterised in that：Methods described includes
(1) mark module is positioned, for carrying out positioning mark to accelerator；
(1.1) one or more positioner is installed on accelerator；
(2) data detection module, for detecting and obtaining positioning mark coordinate；
(2.1) laser lamp of accelerator computer room is opened, isocentric position coordinates is detected using registration pen；Set using infrared track
Standby, detection is arranged on the position coordinates of the positioner on accelerator；
(3) computing module, for the center such as calculating and locking；
(3.1) by detect etc. center position coordinates and positioner coordinate input computer, and calculated using computer
Positioner and isocentric relative position relation；
(3.2) when the centre coordinate such as need to detect every time, the positioner coordinate that is detected with reference to infrared tracking system and described fixed
Position device with wait center relative position relation, accurately calculate currently isocentric coordinate.
2. the isocentric method of accurate lock as claimed in claim 1, it is characterised in that：Described positioner for it is infrared with
The positioning bead of track device-specific.
3. the isocentric method of accurate lock as claimed in claim 2, it is characterised in that：Described positioner for it is infrared with
The positioning bead of track device-specific, its quantity be three and more than.
4. the isocentric method of accurate lock as claimed in claim 1, it is characterised in that：Described accurately calculating is current etc.
The coordinate at center can be non real-time or/and real-time calculating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309957.XA CN104324447B (en) | 2013-07-23 | 2013-07-23 | A kind of isocentric method of accurate lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309957.XA CN104324447B (en) | 2013-07-23 | 2013-07-23 | A kind of isocentric method of accurate lock |
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| Publication Number | Publication Date |
|---|---|
| CN104324447A CN104324447A (en) | 2015-02-04 |
| CN104324447B true CN104324447B (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310309957.XA Active CN104324447B (en) | 2013-07-23 | 2013-07-23 | A kind of isocentric method of accurate lock |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764400B (en) * | 2015-03-10 | 2017-11-21 | 清华大学 | The detection method of linear accelerator isocenter point and radius of sphericity |
| CN109118480B (en) * | 2018-07-26 | 2021-01-05 | 北京东软医疗设备有限公司 | Adjusting method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676831Y (en) * | 2003-10-09 | 2005-02-09 | 江苏富科思科技有限公司 | Radiation therapy infrared location system |
| CN1853737A (en) * | 2005-04-18 | 2006-11-01 | 史荣 | Method for positioning radioactive treatment |
| CN103070698A (en) * | 2013-01-31 | 2013-05-01 | 罗广文 | System and method for generating isocenter laser parameter in radiotherapy |
-
2013
- 2013-07-23 CN CN201310309957.XA patent/CN104324447B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676831Y (en) * | 2003-10-09 | 2005-02-09 | 江苏富科思科技有限公司 | Radiation therapy infrared location system |
| CN1853737A (en) * | 2005-04-18 | 2006-11-01 | 史荣 | Method for positioning radioactive treatment |
| CN103070698A (en) * | 2013-01-31 | 2013-05-01 | 罗广文 | System and method for generating isocenter laser parameter in radiotherapy |
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| CN104324447A (en) | 2015-02-04 |
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