CN101961530A - Image-guided radiation therapy equipment - Google Patents
Image-guided radiation therapy equipment Download PDFInfo
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- CN101961530A CN101961530A CN2010105215425A CN201010521542A CN101961530A CN 101961530 A CN101961530 A CN 101961530A CN 2010105215425 A CN2010105215425 A CN 2010105215425A CN 201010521542 A CN201010521542 A CN 201010521542A CN 101961530 A CN101961530 A CN 101961530A
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Abstract
The invention discloses image-guided radiation therapy equipment, which comprises a radiation therapy equipment body and a treatment table, wherein the radiation therapy equipment body further comprises a slip ring frame structure, a radiation therapy device and a computed tomography (CT) scanner; the CT scanner and the radiation therapy device are both arranged on the slip ring frame structure; the radiation therapy device comprises a ray source body; and the CT scanner comprises an X-ray tube and an X-ray detector which are arranged to be in front of and behind the ray source body by 90 degrees respectively. The image-guided radiation therapy equipment provided by the invention can realize the real-time positioning of focal points of rays and gross target volumes to realize real-time tracking, extract two-dimensional images and display in real time the variations of lesion target volumes.
Description
Technical field
The present invention relates to the radiotherapy equipment in the medical apparatus and instruments, more particularly, relate to a kind of radiotherapy equipment under image-guided.
Background technology
Well-known radiotherapy is one of most important, the most basic means of oncotherapy, and at present, the capital equipment of tumour radiotherapy is linear accelerator, cobalt-60 therapy machine and gamma knife.But, can damage normal tissue when killing tumor because tumor tissues is held by normal structure.How to eliminate the influence that is subjected to physiological movement of organ in the radiotherapy in addition, as the increase of respiratory movement, filling of bladder, enterogastric peristalsis, tumor with reduce, and elastic deformation of organ, the pendulum bit error in the interval procedure etc.Make it and accurately to locate.In therapeutic process, the real-time positioning of the focus of ray and tumor target area, real-time tracking can't be accomplished.Thereby directly have influence on the effect of oncotherapy.
Existing cobalt-60 therapy machine and gamma knife because structure and the treatment spatial restriction can't install the X ray image monitor (Digital Radiography, DR).The existing X ray image monitor of installing on the external accelerator, but because accelerator in therapeutic process, can not be implemented 360 ° of rapid scanning treatments, so X line projection can't extract as the bidimensional image of monitor, can't show the variation of focus target area in real time.
Summary of the invention
The technical problem to be solved in the present invention is, at X line projection being installed as monitor or can not implement the defective of 360 ° of rapid scanning treatments on the existing gamma ray radiation therapeutic device, provides a kind of radiotherapy equipment under image-guided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of radiotherapy equipment under image-guided is provided, comprise radiotherapy equipment main body and the therapeutic bed that is installed in a side of described radiotherapy equipment main body, described therapeutic bed is sent in the described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be installed in in-house radiotherapy unit of described slip ring frame and CT scanner.
In the radiotherapy equipment under image-guided of the present invention, described slip ring rack construction comprises support, and the external shielding body that is installed in the column on the described support;
Be provided with co-axial outer slip ring and the interior rotation slip ring of rotating in the described external shielding body from outside to inside successively, rotate slip ring in described and be nested in described outer the rotation in the slip ring, and describedly rotate slip ring and interior rotation slip ring is installed on the described external shielding body by the swivel becket bearing outward;
Described external shielding body also is provided with the transporter that the axis direction that is used for rotation slip ring outside described transmits described therapeutic bed.
In the radiotherapy equipment under image-guided of the present invention, described radiotherapy unit comprises the radiographic source body, described radiographic source body is installed in described outer the rotation on the slip ring, the radiographic source channel alignment common point of described radiographic source body, described common point overlaps with the described outer center of rotation that rotates slip ring.
In the radiotherapy equipment under image-guided of the present invention, described radiographic source body is a linear accelerator, and described radiotherapy unit also comprises and is installed in the automatic multi-diaphragm collimator that rotates in described on the slip ring.
In the radiotherapy equipment under image-guided of the present invention, described radiographic source body is cobalt 60 isotopes, and described radiotherapy unit also comprises and is installed in the tungsten alloy taper hole collimator that rotates in described on the slip ring.
In the radiotherapy equipment under image-guided of the present invention, described CT scanner comprises X ray bulb, X-ray detector, described X ray bulb and X-ray detector are installed in described outer the rotation on the slip ring, and the line of described X ray bulb and X-ray detector is by described common point.
In the radiotherapy equipment under image-guided of the present invention, described X ray bulb and X-ray detector are arranged to 90 ° of the described radiographic source bodies of lead and lag respectively.
In the radiotherapy equipment under image-guided of the present invention, rotate below, slip ring inside in described and be provided with the shielding slab that is used for when non-treatment, shielding described radiographic source body.
In the radiotherapy equipment under image-guided of the present invention, the anglec of rotation is more than 360 ° when treatment for described slip ring rack construction, and rotary speed is that per minute 1～6 changes variable velocity.
Implement the radiotherapy equipment under image-guided of the present invention, has following beneficial effect: CT scanner is installed in therapy equipment, this CT scanner as monitor, can realize the focus of ray and the real-time positioning of tumor target area as the X ray projection, accomplishes real-time tracking.Simultaneously, the X ray projection has been installed has implemented 360 ° rapid scanning treatment, thereby can extract bidimensional image and the variation of demonstration focus target area in real time as the radiotherapy equipment of monitor.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the theory structure front view of the radiotherapy equipment of the present invention under image-guided;
Fig. 2 is an A-A directional profile enlarged drawing among Fig. 1;
Fig. 3 is the engineering design plan (EDP) front view of the radiotherapy equipment of the present invention under image-guided;
Fig. 4 is a B-B directional profile enlarged drawing among Fig. 3.
The specific embodiment
In the theory structure front view of the radiotherapy equipment under the present invention shown in Fig. 1 is image-guided, and among the Fig. 1 shown in Fig. 2 in the A-A directional profile enlarged drawing, image-guided X (γ) the ray irradiation therapeutic equipment down of present embodiment, comprise radiotherapy equipment main body and the therapeutic bed 4 that is installed in a side of described radiotherapy equipment main body, therapeutic bed 4 is the three-dimensional motion therapeutic bed, is sent in the described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be installed in in-house radiotherapy unit of described slip ring frame and CT scanner.Described radiotherapy unit comprises radiographic source body 6.Described CT scanner comprises X ray bulb 5 and X-ray detector 9 and electronics, electric elements, and described CT scanner can be used as the X ray projection as monitor, implements 360 ° rapid scanning.
Described slip ring rack construction is about 2.0 meters an of external diameter, about 0.8 meter of internal diameter, and the approximate circle cylinder that width is about 1.2 meters is by external shielding body 1, swivel becket bearing 2, rotate slip ring 7, interior rotation slip ring 8, support 10, actuating device 11 outward and constitute.Rotate the radiographic source body 6 of packing on the slip ring 7 outside, radiographic source body 6 can be that linear accelerator also can be cobalt 60 isotopes, and linear accelerator produces X ray, and cobalt 60 isotopes produce gamma-rays.The shape of radiographic source body 6 and big or small TV structure and decide, but no matter radiographic source body 6 is any body, and its one or more radiographic source passages must be aimed at a common point 3.Use linear accelerator as radiographic source body 6, on the interior rotation slip ring 8 automatic multi-diaphragm collimator is installed then, use cobalt 60 isotopes, tungsten alloy taper hole collimator then is installed on the interior rotation slip ring 8 as radiographic source body 6.Rotate slip ring 8 inner belows in shielding slab 12 is arranged on, be used for shielding radiographic source body 6 when non-treatment.Radiographic source body 6 lead and lags of rotating outside on the slip ring 7 are located for 90 °, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements are installed respectively, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements constitute CT scanner.Transporter 11 is arranged on slip ring rack construction one side, is used for transmitting therapeutic bed 4 along the outer axis direction that rotates slip ring 7.
The anglec of rotation of slip ring rack construction is more than 360 °, and rotary speed is that per minute 1～6 changes variable velocity, and center of rotation is a common point 3.
About 500 millimeters of therapeutic bed 4 width, the low temperature thermoplastic film is adopted in the therapeutic bed location.During treatment, the stroke of therapeutic bed 4 on three directions be respectively ± 125 millimeters, ± 100 millimeters and ± 1650 millimeters, the external shield stroke of external shielding body axis direction is 1250 millimeters.
Image-guided X (γ) the ray irradiation therapeutic equipment down of present embodiment can be gathered the relevant image information of patient in real time, determine the treatment target area, thereby make the three-dimensional motion therapeutic bed image-guided down that patient's treatment target area is identical with the common point of radiographic source body collimation accurately, implement radiotherapy.Whole process CT scanner is gathered position, focus target area in real time, and by the motion real-time tracking focus target area of three-dimensional motion therapeutic bed, therapeutic process is visualized.
In the engineering design plan (EDP) front view of the radiotherapy equipment under the present invention shown in Fig. 3 is image-guided, and among the Fig. 3 shown in Fig. 4 in the B-B directional profile enlarged drawing, the image-guided gamma ray radiation therapeutic equipment down of present embodiment comprises the radiotherapy equipment main body and is installed in the therapeutic bed 4 of a side of described radiotherapy equipment main body, therapeutic bed 4 is the three-dimensional motion therapeutic bed, is sent in the described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be installed in in-house radiotherapy unit of described slip ring frame and CT scanner.Described radiotherapy unit comprises radiographic source body 6.Described CT scanner comprises X ray bulb 5 and X-ray detector 9 and electronics, electric elements, and described CT scanner can be used as the X ray projection as monitor, implements 360 ° rapid scanning.
Described slip ring rack construction is about 2.0 meters an of external diameter, about 0.8 meter of internal diameter, and the approximate circle cylinder that width is about 1.2 meters is by external shielding body 1, swivel becket bearing 2, rotate slip ring 7, interior rotation slip ring 8, support 10, actuating device 11 outward and constitute.Rotate the radiographic source body 6 of packing on the slip ring 7 outside.Radiographic source body 6 adopts cobalt 60 isotopes, and decay produces gamma-rays and is used for the treatment of.Radiographic source body 6 is wedges, arranges 42～55 pieces of cobalt 60 radiographic sources on wedge according to certain rules, and each radiographic source all has passage on radiographic source body 6, and passage axis is all pointed to common point 3, and radiographic source body 6 is placed in outer the rotation on the slip ring 7.The collimator of radiographic source body 6 adopts tungsten alloy taper hole collimator, this tungsten alloy taper hole collimator is divided into three groups, every group of collimation passage aperture is different from other two groups to change the size of focus, tungsten alloy taper hole collimator has switch valve to be used for the switch collimator channel, rotates on the slip ring 8 in tungsten alloy taper hole collimator is placed in.In non-when treatment,, radiographic source body 6 placed the below of slip ring rack construction, by mobile shielding slab 12 with its shielding.Radiographic source body 6 lead and lags of rotating outside on the slip ring 7 are located for 90 °, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements are installed respectively, and X ray bulb 5 and X-ray detector 9 and electronics, electric elements constitute CT scanner.Transporter 11 is arranged on slip ring rack construction one side, is used for transmitting therapeutic bed 4 along the outer axis direction that rotates slip ring 7.
The slip ring rack construction anglec of rotation is more than 360 °, and rotary speed is that per minute 1～6 changes variable velocity, and center of rotation is a common point 3.
About 500 millimeters of therapeutic bed 4 width, the low temperature thermoplastic film is adopted in the therapeutic bed location.During treatment, the stroke of therapeutic bed 4 on three directions be respectively ± 125 millimeters, ± 100 millimeters and ± 1650 millimeters, the external shield stroke of external shielding body axis direction is 1250 millimeters.
At the above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure transformation that utilizes description of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. radiotherapy equipment under image-guided, it is characterized in that, comprise radiotherapy equipment main body and the therapeutic bed (4) that is installed in a side of described radiotherapy equipment main body, described therapeutic bed (4) is sent in the described radiotherapy equipment main body when treatment; Described radiotherapy equipment main body further comprises: slip ring frame mechanism, and be installed in in-house radiotherapy unit of described slip ring frame and CT scanner.
2. the radiotherapy equipment under image-guided as claimed in claim 1 is characterized in that described slip ring rack construction comprises support (10), and the external shielding body (1) that is installed in the column on the described support (10);
Be provided with co-axial outer slip ring (7) and the interior rotation slip ring (8) of rotating in the described external shielding body from outside to inside successively, rotate slip ring (8) in described and be nested in described outer the rotation in the slip ring (7), and describedly rotate slip ring (7) and interior rotation slip ring (8) is installed on the described external shielding body (1) by swivel becket bearing (2) outward;
Described external shielding body (1) also is provided with the axis direction that is used for rotation slip ring (7) outside described and transmits the transporter (11) of described therapeutic bed (4).
3. the radiotherapy equipment under image-guided as claimed in claim 2, it is characterized in that, described radiotherapy unit comprises radiographic source body (6), described radiographic source body (6) is installed in described outer the rotation on the slip ring (7), the radiographic source channel alignment common point (3) of described radiographic source body (6), described common point (3) overlaps with the described outer center of rotation that rotates slip ring (7).
4. the radiotherapy equipment under image-guided as claimed in claim 3 is characterized in that described radiographic source body (6) is a linear accelerator, and described radiotherapy unit also comprises and is installed in the automatic multi-diaphragm collimator that rotates in described on the slip ring (8).
5. the radiotherapy equipment under image-guided as claimed in claim 3 is characterized in that described radiographic source body (6) is cobalt 60 isotopes, and described radiotherapy unit also comprises and is installed in the tungsten alloy taper hole collimator that rotates in described on the slip ring (8).
6. as any described radiotherapy equipment under image-guided in the claim 1 to 5, it is characterized in that, described CT scanner comprises X ray bulb (5), X-ray detector (9), described X ray bulb (5) and X-ray detector (9) are installed in described outer the rotation on the slip ring (7), and the line of described X ray bulb (5) and X-ray detector (9) is by described common point (3).
7. the radiotherapy equipment under image-guided as claimed in claim 6 is characterized in that described X ray bulb (5) and X-ray detector (9) are arranged to (6) 90 ° of the described radiographic source bodies of lead and lag respectively.
8. the radiotherapy equipment under image-guided as claimed in claim 2 is characterized in that, rotates the inner below of slip ring (8) in described to be provided with the shielding slab (12) that is used for shielding described radiographic source body (6) when non-treatment.
9. the radiotherapy equipment under image-guided as claimed in claim 1 is characterized in that, the anglec of rotation is more than 360 ° when treatment for described slip ring rack construction, and rotary speed is that per minute 1～6 changes variable velocity.
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| CN2010105215425A CN101961530B (en) | 2010-10-27 | 2010-10-27 | Image-guided radiation therapy equipment |
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| CN2010105215425A CN101961530B (en) | 2010-10-27 | 2010-10-27 | Image-guided radiation therapy equipment |
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| CN101961530B CN101961530B (en) | 2013-11-13 |
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| CN102698376A (en) * | 2012-06-12 | 2012-10-03 | 复旦大学附属肿瘤医院 | Passive respiration gate control system and regulating and controlling method thereof |
| CN103071241A (en) * | 2011-10-25 | 2013-05-01 | 苏州雷泰医疗科技有限公司 | Stereotactic radiotherapeutic device |
| CN103083822A (en) * | 2013-01-28 | 2013-05-08 | 广东中能加速器科技有限公司 | Single-bearing supporting rack rotating mechanism used for medical linear accelerator |
| CN103930164A (en) * | 2011-11-07 | 2014-07-16 | 皇家飞利浦有限公司 | Electronic brachytherapy source for use in /near MR scanners |
| CN105120953A (en) * | 2013-04-18 | 2015-12-02 | 皇家飞利浦有限公司 | Radiation therapy system with real-time magnetic resonance monitoring |
| CN105167797A (en) * | 2015-10-16 | 2015-12-23 | 广东中能加速器科技有限公司 | High-energy medical electron linear accelerating and image collecting and scanning coaxial all-in-one machine |
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| CN107050669A (en) * | 2017-06-08 | 2017-08-18 | 张春燕 | It is a kind of it is image-guided under radiodiagnosis therapeutic system |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of linear accelerator system |
| CN108785872A (en) * | 2017-10-24 | 2018-11-13 | 徐慧军 | The multi-modal image-guided precise radiotherapy systems of 4 π |
| CN109011219A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | A kind of radiotherapy system and its control driving method |
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| CN109157761A (en) * | 2018-08-24 | 2019-01-08 | 西安大医集团有限公司 | A kind of radiotherapy system |
| CN109513116A (en) * | 2017-09-18 | 2019-03-26 | 胡逸民 | A kind of ray intensity modulated therapy device |
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| GB2596623A (en) * | 2020-07-01 | 2022-01-05 | Elekta ltd | An imaging system for a radiotherapy device |
| CN116196027A (en) * | 2023-04-28 | 2023-06-02 | 赛诺威盛科技(北京)股份有限公司 | CT scanning equipment and scanning method for reducing CT radiation in adaptive scanning area |
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| CN103071241B (en) * | 2011-10-25 | 2015-12-30 | 苏州雷泰医疗科技有限公司 | Stereotactic radiotherapeutic device |
| CN103930164A (en) * | 2011-11-07 | 2014-07-16 | 皇家飞利浦有限公司 | Electronic brachytherapy source for use in /near MR scanners |
| CN102698376B (en) * | 2012-06-12 | 2015-04-15 | 复旦大学附属肿瘤医院 | Passive respiration gate control system and regulating and controlling method thereof |
| CN102698376A (en) * | 2012-06-12 | 2012-10-03 | 复旦大学附属肿瘤医院 | Passive respiration gate control system and regulating and controlling method thereof |
| CN103083822A (en) * | 2013-01-28 | 2013-05-08 | 广东中能加速器科技有限公司 | Single-bearing supporting rack rotating mechanism used for medical linear accelerator |
| CN105120953B (en) * | 2013-04-18 | 2018-05-25 | 皇家飞利浦有限公司 | Radiotherapy system with real-time magnetic resonance monitoring |
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| CN105193438A (en) * | 2015-10-23 | 2015-12-30 | 江苏海明医疗器械有限公司 | Tumor positioning device and method for radiotherapy simulation machine |
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| CN109513116A (en) * | 2017-09-18 | 2019-03-26 | 胡逸民 | A kind of ray intensity modulated therapy device |
| CN108785872A (en) * | 2017-10-24 | 2018-11-13 | 徐慧军 | The multi-modal image-guided precise radiotherapy systems of 4 π |
| CN108785872B (en) * | 2017-10-24 | 2023-10-13 | 华瑞先锋医学科技(北京)有限公司 | 4 pi multi-mode image guided accurate radiation therapy system |
| CN107773853A (en) * | 2017-11-30 | 2018-03-09 | 上海联影医疗科技有限公司 | A kind of linear accelerator system |
| CN107773853B (en) * | 2017-11-30 | 2022-02-15 | 上海联影医疗科技股份有限公司 | Linear accelerator system |
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| CN109011219A (en) * | 2018-08-24 | 2018-12-18 | 西安大医集团有限公司 | A kind of radiotherapy system and its control driving method |
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| CN109011219B (en) * | 2018-08-24 | 2023-11-17 | 西安大医集团股份有限公司 | Radiation therapy system and control driving method thereof |
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