CN101088573B - Gamma ray therapeutic equipment - Google Patents

Gamma ray therapeutic equipment Download PDF

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Publication number
CN101088573B
CN101088573B CN 200610061040 CN200610061040A CN101088573B CN 101088573 B CN101088573 B CN 101088573B CN 200610061040 CN200610061040 CN 200610061040 CN 200610061040 A CN200610061040 A CN 200610061040A CN 101088573 B CN101088573 B CN 101088573B
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source
ray
gamma
body
imaging
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CN 200610061040
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CN101088573A (en )
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乔宝龙
孟庆文
张晓峰
李大梁
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深圳市一体医疗科技股份有限公司
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Abstract

The gamma ray therapeutic equipment includes one treating head and one treating bed. The treating head includes one gamma ray source body with several gamma ray sources and imaging sources, and one collimator with focusing collimation holes and divergent collimation holes, each of which has aperture increased with the increasing the distance to the gamma ray source body. By means of the motion ofthe collimator, the imaging sources may be aligned to the divergent collimation holes. The treating bed is provided also movable image acquiring system, which acquires the gamma rays emitted by the imaging sources and passed through the divergent collimation holes and human body so as to determine the accurate position of human body. The present invention can ensure the accurate position of the patient in the treating bed.

Description

一种伽玛射线治疗装置 One kind of gamma-ray treatment device

技术领域 FIELD

[0001] 本发明涉及放射线治疗装置,具体涉及伽玛射线治疗时的摆位、定位验证装置。 [0001] The present invention relates to a radiation therapy apparatus, particularly when involving placement gamma ray treatment, to verify the positioning means.

[0002] 现有技术 [0002] The prior art

[0003] 现有的伽玛射线治疗装置包括可摆动治疗头和治疗床,治疗头包括源体和准直体,源体上设置有一个或多个伽玛射线源,准直体上设置有聚焦准直孔,治疗时,病人先通过CT等成像装置进行立体定位,再带着立体定位装置转移到治疗床上进行治疗,此时,是假定人体在进行立体定位和转移到治疗床上时人体的位置没有发生改变,而实际上有无改变并不得而知。 [0003] conventional gamma radiation therapy treatment device includes a swingable head and couch, the treatment head comprises a source body and a collimator body, the source body is provided with one or more gamma-ray source, the collimator is provided with a focusing collimated holes, treatment, the patient first by stereotactic imaging apparatus such as CT, and then proceeds to take stereotactic treatment couch apparatus for treatment, at this time, making the assumption that the body and transferred to the stereotactic treatment bed of the body position has not changed, and in fact is not known whether there are changes. 也就是说,没有验证病人进入治疗床后其位置是否与原CT扫描及TPS计划的位置一致,由此导致治疗有一定的盲目性。 In other words, there is no verification of its position after entering the patient couch position is consistent with the original CT scan and TPS program, which led to the treatment of a certain blindness.

发明内容 SUMMARY

[0004] 本发明提供一种伽玛射线治疗装置,以解决现有伽玛射线治疗装置治疗时在病人进入治疗床后,无法验证其位置是否还在原规划位置处的技术问题。 [0004] The present invention provides a gamma-ray treatment device, in order to solve the conventional gamma-ray when the treatment device in the patient enters the treatment bed, is still unable to verify whether the position of the original technical problem at the planned position.

[0005] 为了解决以上技术问题,本发明采取的技术方案是: [0005] In order to solve the above technical problem, the present invention takes the following technical solution:

[0006] 一种伽玛射线治疗装置,包括可摆动治疗头和治疗床,治疗头包括源体和准直体, 源体上设置有多个伽玛射线源,准直体上设置有聚焦准直孔,其特征是,所述源体上还设置有成像源,所述准直体上还设置有靠近源体孔径小而远离源体孔径逐渐增大的发散准直孔,所述成像源在准直体的运动下可对准所述喇叭形或方形的发散准直孔,所述治疗床上还设置有可移动的图像采集系统;图像采集系统可采集成像源经喇叭形或方形的发散准直孔发出的射线通过人体后形成的图像,通过摆动治疗头在两个位置处得到的图像来确定人体摆放位置的准确性。 [0006] A gamma-ray treatment device, comprising a therapy head and therapy swingable bed, comprising a therapy head body and the source collimator, provided with a plurality of gamma-ray source on the source body, the body is provided with a collimating GRIN straight hole, characterized in that said source body is further provided with an imaging source, the collimator provided with a source close to the source of the image forming member diverging away from the small aperture hole collimator aperture source body gradually increases, in the moving body can be aligned with the collimator divergence of the collimated holes flared or square, the treatment bed also provided with a movable image acquisition system; an image acquisition system may acquire imaging source is flared or diverging square ray collimator aperture emitted by the image forming body, the body to determine the accuracy of placement of the treatment head swing by the image obtained at two positions.

[0007] 所述的成像源为治疗用的源中的一个伽玛射线源,所述的图像采集系统为X光胶片或X线图像板。 Said imaging source [0007] The treatment with a source of gamma-ray source, said X-ray image acquisition system X-ray film or image plate.

[0008] 所述的成像源为单颗外加的专用成像伽玛射线源,所述的图像采集系统为X光胶片或X线图像板。 Imaging source [0008] of the dedicated single external source of gamma-ray imaging, the image acquisition system or X-ray film X-ray image plate.

[0009] 所述的成像源为X射线源,所述的图像采集系统为X光胶片或X线图像板。 Imaging source [0009] of the X-ray source, said X-ray image acquisition system X-ray film or image plate.

[0010] 所述图像采集系统安装在可与摆动治疗头同步相对摆动的摆动机构上,使图像采集系统在治疗头摆动时成像源也能与图像采集系统对应。 [0010] The image acquisition system is mounted on the swing mechanism can be synchronized with the wobble treatment head relative swinging, image acquisition system can correspond to an imaging source image acquisition system in the treatment of head swing.

[0011] 在采用了上述技术方案后,由于在治疗头上设置了成像源,在治疗床上设置有图像采集系统,使得在躺到治疗床上开始治疗前能够验证病人位置是否发生了改变,从而解决了现有伽玛射线治疗装置治疗时在病人进入治疗床后无法验证病人位置是否还在原来的规划位置处的问题。 [0011] After adopting the above technical solution, since the treatment head is provided in the source image, the image acquisition system is provided with a treatment couch, the couch so that lay before the start of treatment the patient is able to verify whether the position has changed, to solve the problems of the existing gamma-ray therapy treatment when the device is unable to verify the position of the patient after the patient enters the couch if still in the original planning positions. 如果验证发现病人位置有偏移,则可通过治疗床的移动来予以补偿, 达到精确治疗目的。 It found that patients have to verify if the position offset may be compensated by moving the couch, to achieve the precise therapeutic purposes.

附图说明 BRIEF DESCRIPTION

[0012] 图I是本发明具体实施例一的结构示意图。 [0012] FIG. I is a schematic diagram of a specific embodiment of the present invention. [0013] 图2是利用实施例一中的伽玛射线治疗装置来确定肿瘤摆放位置的准确性的原理示意图。 [0013] FIG. 2 is a schematic view of the principle to determine the accuracy of the placement of the tumor therapy using gamma-ray apparatus of the first embodiment.

[0014] 图3是本发明具体实施例二的原理示意图。 [0014] FIG. 3 is a schematic view of the principle according to the second embodiment of the present invention specifically.

[0015] 图4是利用实施例二中的X射线源来确定病人位置的准确性的原理示意图。 [0015] FIG. 4 is a schematic view of the principle to determine the accuracy of the position of the patient using X-ray source in the second embodiment.

具体实施方式 detailed description

[0016] 实施例一 [0016] Example a

[0017] 如图I所示,一种伽玛射线治疗装置,包括可摆动治疗头和治疗床6,治疗头包括源体I和准直体2,源体I上设置有多个伽玛射线源,准直体上设置有聚焦准直孔,伽玛射线源中有一个被用做成像源3,准直体上还设置有靠近源体孔径小而远离源体直径逐渐增大的喇叭形的发散准直孔4,成像源3在准直体的运动下可对准所述喇叭形的发散准直孔4, 治疗床6下面还设置有可移动的X光胶片或X线图像板5 ;X光胶片或X线图像板5可以制作两个,以便在治疗头摆动到另一位置时成像源也能与X光胶片或X线图像板5对应,当然也可以将X光胶片或X线图像板5安装在可与摆动治疗头同步相对摆动的摆动机构上,使X 光胶片暗盒或X线图像板5在治疗头摆动时成像源也能与X光胶片或X线图像板5对应, X光胶片暗盒或X线图像板5可采集成像源经喇叭形的发散准直孔4发出的射线通 [0017] As shown in a gamma-ray treatment apparatus comprising a treatment head and swinging FIG couch I 6, I therapy head includes a source body and the collimator body 2, the source body is provided with a plurality of gamma rays I source, is provided with a focusing collimator the collimator aperture, there is a gamma-ray source is used as an imaging source 3, it is also provided with a small aperture near the source material away from the source and gradually increasing the diameter of the collimator horn divergence collimated holes diverging the collimated holes 4, the imaging source 3 in the moving body can be aligned with the collimator of the horn 4, the following treatment couch 6 is also provided with a movable X-ray film or an X-ray image board 5 ; X-ray film or an X-ray image can make two plate 5, so as to swing to another position corresponding to the imaging source can be 5 X-ray film and the X-ray image or in the treatment of head plate, of course, also possible to X-ray film or X line image plate 5 is mounted on a swinging mechanism and the swinging therapy head synchronized relatively swinging the X-ray film cassette or an X-ray image plate 5 forming source can correspond to X-ray film or an X-ray image plate 5 in the treatment of head swing , X-ray film cassette or an X-ray image capture panel 5 may be registered imaging source is divergent flared straight-rays emitted through the hole 4 过人体后射线图像,通过摆动治疗头在两个位置处得到的图像来确定肿瘤摆放位置的准确性。 After-ray images through the human body to determine the accuracy of placement of the tumor treatment head swing by the image obtained at two positions. 当然成像源3也可以是在源体I上设置的专用的伽玛射线源,如图2所示是利用本实施例来确定病人摆放位置的准确性的原理示意图。 Of course, the imaging source 3 may be provided on a dedicated source body I gamma-ray source, as shown with the present embodiment is a schematic diagram to determine the accuracy of placement of the patient 2 as shown in principle.

[0018] 实施例二 [0018] Second Embodiment

[0019] 如图3所示,一种伽玛射线治疗装置,包括可摆动治疗头和治疗床6,治疗头包括源体I和准直体2,源体上设置有多个伽玛射线源,准直体上设置有聚焦准直孔,源体I上还设置有X射线成像源3,准直体2上还设置有靠近源体I孔径小而远离源体直径逐渐增大的喇叭形的发散准直孔4,治疗床6下还设置有可移动的X光胶片暗盒或X线图像板5 ; 成像源3在准直体2的运动下可对准所述喇叭形的发散准直孔4,X光胶片或X线图像板5 可以制作两个,以便在治疗头摆动到另一位置时成像源也能与X光胶片或X线图像板5对应,当然也可以将X光胶片或X线图像板5安装在可与摆动治疗头同步相对摆动的摆动机构上,使X光胶片暗盒或X线图像板5在治疗头摆动时成像源也能与X光胶片或X线图像板5对应,X光胶片暗盒或X线图像板5可采集成像源经喇叭形的发散准直孔4发出的射线通过 [0019] 3 A gamma-ray treatment device, comprising a therapy head and therapy swingable bed 6, the treatment head comprises a source body and the collimator body 2 I, provided with a plurality of gamma-ray source on the source body provided a focusing collimator the collimator aperture, I source body is further provided with an X-ray imaging source 3, a collimator body 2 is also provided with a small aperture near the source material I and diameter gradually increasing away from the source of the trumpet divergence collimated holes 4, the couch 6 is also provided with a movable X-ray film cassette or an X-ray image plate 5; imaging source 3 may be aligned with said horn at a diverging collimator motion of the collimator 2 holes 4, X-ray film or an X-ray image can make two plate 5, so as to swing to another position corresponding to the imaging source can be 5 X-ray film and the X-ray image or in the treatment of head plate, of course, also possible to X-ray film or the X-ray image plate 5 is mounted on a swinging mechanism and the swinging therapy head synchronized relatively swinging the imaging source 5 swings in the treatment of head X-ray film cassette or an X-ray image plate can with X-ray film or an X-ray image plate corresponding to 5, X-ray film cassette or an X-ray image capture panel 5 may be flared imaging source is collimated rays diverging emitted through the aperture 4 人体后射线图像,通过摆动治疗头在两个位置处得到的图像来确定肿瘤摆放位置的准确性。 After the body-ray images to determine the accuracy of placement of the tumor treatment head swing by the image obtained at two positions. 如图4所示是利用本实施例来确定人体摆放位置的准确性的原理示意图。 4 is a schematic view of the principle to determine the accuracy of placement of the body with the present embodiment.

[0020] 在上述两实施例中,在对病人进肿瘤位置验证时,还需要以下配套措施: [0020] In the above two embodiments, when the patient to verify the location of the tumor, but also supporting measures the following:

[0021] I.成像源在成像处形成一个大照射野,一般要大于5X5cm。 [0021] I. imaging source is formed at a large irradiation field imaging, normally greater than 5X5cm.

[0022] 2.病人在进行立体定位时用的定位用标志线或标志点要继续保持。 [0022] During use of stereotaxic 2. The patient positioning mark lines or to keep marker points.

[0023] 3.需要在病人体表皮肤上粘贴的2个以上定位标志点,或种植在皮下或肿瘤病灶处2个以上定位标志点。 [0023] 3. two or more alignment mark points to be pasted on the patient's skin surface, or planting in the subcutaneous tumor foci or registration marks at two or more points.

[0024] 4.定位成像要进行两次,一般正位一次,侧位一次,两次照片的夹角在10度以上, 170度以下,90度最好。 [0024] 4. Location imaging performed twice, once general anteroposterior, lateral one, two photo angle 10 degrees to 170 degrees, preferably 90 degrees. 成像源与成像系统始终平行移动。 Imaging source is always parallel movement of the imaging system.

[0025] 病人整个的治疗过程为:[0026] (I)病人体表贴上定位标志点2个以上,或种植定位标志点在皮下或肿瘤病灶处。 [0025] Patient entire course of treatment is: [0026] (I) the patient body surface alignment mark affixed two or more points, or planting point registration marks or subcutaneous tumor lesions.

[0027] (2)给病人安装立体定位框架 [0027] (2) mounted stereotactic frame to the patient

[0028] (3) CT 或MR 扫描 [0028] (3) CT or MR scan

[0029] (4)计算机治疗规划 [0029] (4) treatment planning computer

[0030] (5)病人上治疗床,通过成像源和图像采集系统工作得到验证片,验证肿瘤位置, 验证片要不同角度照两次。 [0030] (5) on the patient couch, verified sheet by the imaging source and image acquisition system operates to verify tumor location, verify sheet according to two different angles.

[0031] (6)将验证片扫描入计算机配准系统,如果采用X线图像板(平板)采集图像,则验证图像直接传入计算机配准系统。 [0031] (6) scanned into a computer to verify the sheet registration system, if the X-ray image plate (flat) image acquisition, the verification image registration system directly into the computer.

[0032] (7)配准系统计算出位置偏差,并调整三维治疗床,补偿位置偏差。 [0032] (7) calculates the position deviation registration system, and a three-dimensional adjustment of the couch, to compensate the positional deviation.

Claims (5)

  1. 1. 一种伽玛射线治疗装置,包括可摆动治疗头和治疗床,治疗头包括源体和准直体,源体上设置有多个伽玛射线源,准直体上设置有聚焦准直孔,其特征是,所述源体上还设置有成像源,所述准直体上还设置有靠近源体孔径小而远离源体直径逐渐增大的喇叭形的发散准直孔,所述成像源在准直体的运动下可对准所述喇叭形的发散准直孔,所述治疗床上还设置有可移动的图像采集系统;图像采集系统可采集成像源经喇叭形的发散准直孔发出的射线通过人体后形成的图像,通过摆动治疗头在两个位置处得到的图像来确定人体摆放位置的准确性。 A gamma-ray treatment device, comprising a therapy head and therapy swingable bed, comprising a therapy head body and the source collimator, provided with a plurality of gamma-ray source on the source body, disposed on a focusing collimator the collimator hole, characterized in that said source body is further provided with an imaging source, said quasi straight body further provided with a small aperture near the source, body and flared away from the source of collimated holes diverging progressively increasing diameter, said divergence collimator aperture imaging source in the moving body can be aligned with the collimator of the horn, the treatment bed also provided with a movable image acquisition system; the image acquisition system acquired by the imaging source diverging horn quasi linear rays emitted by the image forming holes in the human body to determine the accuracy of placement of the body at two positions in the image obtained by swinging the treatment head.
  2. 2.如权利要求I所述的伽玛射线治疗装置,其特征是,所述的成像源为治疗用的源中的一个伽玛射线源,所述的图像采集系统为X光胶片或X线图像板。 2. Gamma ray treatment apparatus according to claim I, wherein said source is a source of therapeutic imaging in a gamma-ray source, the image acquisition system X-ray or X-ray film the image plate.
  3. 3.如权利要求I所述的伽玛射线治疗装置,其特征是,所述的成像源为单颗外加的专用成像用伽玛射线源,所述的图像采集系统为X光胶片或X线图像板。 3. The gamma-ray treatment apparatus according to claim I, wherein said single imaging source is applied to a dedicated source of gamma-ray imaging, the image acquisition system X-ray or X-ray film the image plate.
  4. 4.如权利要求I所述的伽玛射线治疗装置,其特征是,所述的成像源为外加X射线源, 所述的图像采集系统为X光胶片或X线图像板。 4. The gamma-ray treatment apparatus according to claim I, characterized in that the imaging source is applied to the X-ray source, said X-ray image acquisition system X-ray film or image plate.
  5. 5.如权利要求I或2或3或4所述的伽玛射线治疗装置,其特征是,所述图像采集系统安装在可与摆动治疗头同步相对摆动的摆动机构上,使图像采集系统在治疗头摆动时成像源也能与图像采集系统对应。 5. I or gamma-ray therapy device of claim 4 or claim 23, characterized in that the image acquisition system is mounted on the swing mechanism can be synchronized with the wobble treatment head relative swinging, image acquisition system imaging source can correspond to the image acquisition system therapy head swing.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396889A (en) 1992-09-07 1995-03-14 Hitachi Medical Corporation Stereotactic radiosurgery method and apparatus
CN1736509A (en) 2004-08-17 2006-02-22 宋世鹏 Focusing type gamma ray therapeutic method and arrangement
CN1919374A (en) 2005-08-25 2007-02-28 惠小兵 Radiation therapeutical irradiation device
CN201088787Y (en) 2007-09-28 2008-07-23 深圳市一体医疗科技有限公司 Gamma radiotherapeutic apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396889A (en) 1992-09-07 1995-03-14 Hitachi Medical Corporation Stereotactic radiosurgery method and apparatus
CN1736509A (en) 2004-08-17 2006-02-22 宋世鹏 Focusing type gamma ray therapeutic method and arrangement
CN1919374A (en) 2005-08-25 2007-02-28 惠小兵 Radiation therapeutical irradiation device
CN201088787Y (en) 2007-09-28 2008-07-23 深圳市一体医疗科技有限公司 Gamma radiotherapeutic apparatus

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