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    • 2. 发明授权
    • Radiotherapeutic apparatus having three dimensional light marks
    • 具有三维光标的放射治疗装置
    • US5206893A
    • 1993-04-27
    • US778212
    • 1991-12-09
    • Yukihiro Hara
    • Yukihiro Hara
    • A61B6/03A61B6/04A61B6/06A61B6/08A61N5/10
    • A61B6/0457A61B6/032A61B6/06A61B6/08A61B6/4085A61B6/548A61N5/1049A61N2005/1062A61N5/1065
    • An object of the present invention is to realize a radiotherapeutic system whereby the process from the stage of making a diagnosis of a body to be examined for obtaining information of position, size, shape etc. of the diseased part and making up a therapeutic plan of such items as the area to be irradiated by a radiation to the stage of positioning of the area to be irradiated on the body being examined and applying the radiation to the body can be reasonably executed with little trouble.The present invention is characterized by that tomograms are taken by means of an X-ray CT, three-dimensional coordinates of the center position of the region of interest to which the radiotherapy is to be applied and a perspective image of the region of interest similar to the perspective image obtained by means of an X-ray simulator are obtained by calculation performed by a calculating device with image data of tomograms, the reference positions for application of the therapy are marked on the body being examined according to indications given by a positioning device on the basis of the three-dimensional coordinates of the center position of the region of interest, and the radiation collimator of the therapeutic apparatus is controlled by a therapeutic apparatus controller on the basis of the calculated perspective image of the region of interest.
    • PCT No.PCT / JP90 / 00856 Sec。 371 1991年12月9日第 102(e)日期1991年12月9日PCT提交1990年6月29日PCT公布。 第WO91 / 00057号公报 日本1991年1月10日。本发明的目的是实现一种放射治疗系统,其中从进行诊断的身体的诊断阶段的过程获得患病部位的位置,大小,形状等的信息 并且构成将要被照射的区域的这样的物品的治疗计划合理地执行在没有任何麻烦的情况下,可以合理地执行诸如要被照射的区域到要被照射的区域的定位的阶段,并且将辐射施加到身体。 本发明的特征在于,通过X射线CT获取断层图像,将要应用放射治疗的感兴趣区域的中心位置的三维坐标和感兴趣区域的透视图相似 通过利用具有断层图像的图像数据的计算装置进行的计算来获得通过X射线模拟器获得的透视图像,根据定位给出的指示将待治疗的基准位置标记在正在被检查的身体上 基于感兴趣区域的中心位置的三维坐标,并且治疗仪器的放射线准直器根据所计算的感兴趣区域的透视图由治疗仪控制器进行控制。
    • 5. 发明授权
    • CT image processing device and CT image processing method
    • CT图像处理装置和CT图像处理方法
    • US08781200B2
    • 2014-07-15
    • US13419219
    • 2012-03-13
    • Yukihiro HaraTakafumi Koike
    • Yukihiro HaraTakafumi Koike
    • G06K9/00
    • A61B6/508A61B6/032A61B6/5288G06T11/005G06T2211/412
    • A CT image processing device 5 which processes projection data in synchronization with a periodic motion of a portion of a subject includes an ROI calculation unit 36 which calculates specific information on an ROI for synchronization for each scanning angle so as to track the target portion of the subject. As a result, a strong synchronization signal is obtained, a characteristic amount in which breathing beat and heartbeat sufficiently appear can be measured, and simple synchronization processing is made possible by using the projection data. A dedicated device for obtaining the heartbeat or breathing beat such as ECG and a respiratory measuring device is not required, and a heartbeat signal and a breathing beat signal can be obtained from an ROI signal of the projection data. As a result, blurring on an image caused by the heartbeat can be eliminated, and an image quality is extremely improved.
    • 与被摄体的一部分的周期性运动同步地处理投影数据的CT图像处理装置5包括ROI计算部36,其针对每个扫描角计算用于同步的ROI的特定信息,以跟踪对象部分 学科。 结果,可以获得强烈的同步信号,可以测量呼吸搏动和心跳充分出现的特征量,并且可以通过使用投影数据进行简单的同步处理。 不需要用于获得诸如ECG和呼吸测量装置的心跳或呼吸节拍的专用装置,并且可以从投影数据的ROI信号获得心跳信号和呼吸搏动信号。 结果,可以消除由心跳引起的图像上的模糊,并且图像质量极大地提高。
    • 6. 发明授权
    • CT data processing apparatus and CT data processing method
    • CT数据处理装置和CT数据处理方法
    • US08031928B2
    • 2011-10-04
    • US11907360
    • 2007-10-11
    • Yukihiro HaraAyuta YamadaYuichi Kodama
    • Yukihiro HaraAyuta YamadaYuichi Kodama
    • G06K9/00
    • A61B6/508A61B5/4872A61B6/032G06T7/12G06T2207/10081G06T2207/30004Y10S378/901
    • A CT data processing apparatus and a CT data processing method capable of separating a subcutaneous fat region from a visceral fat region accurately and efficiently in CT data are provided. The CT data processing apparatus includes a center calculation part that calculates a body center 41 of an examinee on tomographic CT data, a start point setting part that identifies a vertebral column position 45 on the tomographic CT data and sets a start point on a muscular layer 37 on the opposite side of the vertebral column position 45 with respect to the body center 41, a muscular layer determination part that determines whether or not the muscular layer 37 is present in a first range 48, and when it is determined that the muscular layer 37 is present in the first range 48, further setting a point on the muscular layer 37 in the first range 48 as a new first reference point 47 and thus determining whether or not the muscular layer 37 is present in the first range 48, while moving the first reference point 47 from the start point 46, and a separation line calculation part that calculates a separation line so that the separation line passes through the first reference points 47.
    • 提供了一种CT数据处理装置和CT数据处理方法,其能够在CT数据中精确高效地从内脏脂肪区域分离皮下脂肪区域。 CT数据处理装置包括计算断层摄影CT数据的被检体的身体中心41的中心计算部,识别断层CT数据上的椎体列位置45的起始点设定部,并且在肌肉层上设定起点 37位于相对于身体中心41的脊柱位置45的相反侧,肌肉层确定部,其确定肌层37是否存在于第一范围48中,并且当确定肌层 37存在于第一范围48中,进一步将第一范围48中的肌肉层37上的点设为新的第一参考点47,并且因此确定肌层37是否存在于第一范围48中,同时移动 来自起始点46的第一参考点47,以及分离线计算部分,其计算分离线,使分离线通过第一参考点47。
    • 8. 发明申请
    • CT data processing apparatus and CT data processing method
    • CT数据处理装置和CT数据处理方法
    • US20080130975A1
    • 2008-06-05
    • US11907360
    • 2007-10-11
    • Yukihiro HaraAyuta YamadaYuichi Kodama
    • Yukihiro HaraAyuta YamadaYuichi Kodama
    • G06K9/00
    • A61B6/508A61B5/4872A61B6/032G06T7/12G06T2207/10081G06T2207/30004Y10S378/901
    • A CT data processing apparatus and a CT data processing method capable of separating a subcutaneous fat region from a visceral fat region accurately and efficiently in CT data are provided. The CT data processing apparatus includes a center calculation part that calculates a body center 41 of an examinee on tomographic CT data, a start point setting part that identifies a vertebral column position 45 on the tomographic CT data and sets a start point on a muscular layer 37 on the opposite side of the vertebral column position 45 with respect to the body center 41, a muscular layer determination part that determines whether or not the muscular layer 37 is present in a first range 48, and when it is determined that the muscular layer 37 is present in the first range 48, further setting a point on the muscular layer 37 in the first range 48 as a new first reference point 47 and thus determining whether or not the muscular layer 37 is present in the first range 48, while moving the first reference point 47 from the start point 46, and a separation line calculation part that calculates a separation line so that the separation line passes through the first reference points 47.
    • 提供了一种CT数据处理装置和CT数据处理方法,其能够在CT数据中精确高效地从内脏脂肪区域分离皮下脂肪区域。 CT数据处理装置包括计算断层摄影CT数据的被检体的身体中心41的中心计算部,识别断层CT数据上的椎体列位置45的起始点设定部,并且在肌肉层上设定起点 37位于相对于身体中心41的脊柱位置45的相反侧,肌肉层确定部,其确定肌层37是否存在于第一范围48中,并且当确定肌层 37存在于第一范围48中,进一步将第一范围48中的肌肉层37上的点设为新的第一参考点47,并且因此确定肌层37是否存在于第一范围48中,同时移动 来自起始点46的第一参考点47和分离线计算部分,其计算分离线,使得分离线通过第一参考点 47。