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11. 发明申请

US20210012500A1 MOVING OBJECT TRACKING APPARATUS, RADIOTHERAPY SYSTEM AND MOVING OBJECT TRACKING METHOD 有权
公开(公告)号：US20210012500A1
公开(公告)日：2021-01-14
申请号：US16703987
申请日：2019-12-05
申请人： Hitachi, Ltd.
发明人： Koichi MIYAZAKI , Toru UMEKAWA , Yusuke FUJII
IPC分类号： G06T7/00 , G06T7/70 , G06T7/20 , G06T5/10 , G01N23/04
摘要： The moving object tracking apparatus emphasizes an image with specific size in each of fluoroscopic images derived from two or more paired fluoroscopic radiographic devices, obtains a value indicating certainty degree of detecting a candidate position of the object to be tracked on the image subjected to the emphasizing process, extracts the candidate position based on the value indicating the certainty degree of detection, calculates a value indicating a correlation between the candidate position extracted from images picked up from two or more directions, and a position of the fluoroscopic radiation generator, detects the position of the object to be tracked based on the value indicating the certainty degree of detection, and the value indicating the correlation, and controls irradiation of radiation to an irradiation target based on the detected position of the object to be tracked.

12. 发明申请

US20190299027A1 PARTICLE THERAPY PLANNING APPARATUS, PARTICLE THERAPY SYSTEM, AND DOSE DISTRIBUTION CALCULATION PROGRAM 审中-公开
公开(公告)号：US20190299027A1
公开(公告)日：2019-10-03
申请号：US16250262
申请日：2019-01-17
申请人： Hitachi, Ltd.
发明人： Yusuke FUJII , Shinichiro FUJITAKA
IPC分类号： A61N5/10 , G16H30/20 , G16H20/40
摘要： A therapy planning apparatus is configured to: discretize an irradiation amount with which a particle beam is irradiated during an irradiation position change for calculation; associate a series of 3D CT images included in a 4D CT image with elapsed time information from start to completion of irradiation of a particle beam; distribute the irradiation amount discretized for the calculation to the 3D CT images based on the 3D CT images and the elapsed time information that are associated; calculate a dose distribution of the particle beam on the 3D CT images to which the irradiation amount is distributed; calculate corresponding positions between the 3D CT images based on non-rigid registration; and integrate a dose distribution formed for each of the 3D CT images during an irradiation period for each of the corresponding positions between the 3D CT images from start to completion of the irradiation of the particle beam.

13. 发明申请

US20140316184A1 TREATMENT PLANNING SYSTEM, DEVICE FOR CALCULATING A SCANNING PATH AND PARTICLE THERAPY SYSTEM 审中-公开
公开(公告)号：US20140316184A1
公开(公告)日：2014-10-23
申请号：US14318881
申请日：2014-06-30
申请人： HITACHI, LTD.
发明人： Rintaro FUJIMOTO , Yoshihiko NAGAMINE , Masumi UMEZAWA , Toru UMEKAWA , Yusuke FUJII , Hiroshi AKIYAMA
IPC分类号： A61N5/10
CPC分类号： A61N5/1065 , A61N5/103 , A61N5/1043 , A61N2005/1087
摘要： In a particle therapy treatment planning system for creating treatment plan data, the movement of a target (patient's affected area) is extracted from plural tomography images of the target, and the direction of scanning is determined by projecting the extracted movement on a scanning plane scanned by scanning magnets. Irradiation positions are arranged on straight lines parallel with the scanning direction making it possible to calculate a scanning path for causing scanning to be made mainly along the direction of movement of the target. The treatment planning system can thereby realize dose distribution with improved uniformity.

14. 发明申请

US20130221213A1 CALIBRATION METHOD FOR RADIATION DETECTOR, AND PARTICLE THERAPY SYSTEM 有权
标题翻译：辐射检测器和颗粒治疗系统的校准方法
公开(公告)号：US20130221213A1
公开(公告)日：2013-08-29
申请号：US13776002
申请日：2013-02-25
申请人： HITACHI, LTD.
发明人： Taisuke TAKAYANAGI , Hideaki NISHIUCHI , Masahiro TADOKORO , Yusuke FUJII , Takeji SAKAE , Toshiyuki TERUNUMA
IPC分类号： G01T7/00
CPC分类号： G01T7/005 , A61N5/1048 , A61N5/1075 , A61N2005/1087 , G01T1/29
摘要： A stacked type of radiation detector and a calibration method that enables the radiation detector to correct variations in sensor-specific output easily and within a short time, without using a water-phantom dose detector. The radiation detector is equipped with a sensor section including a plurality of sensors arranged in layers in a traveling direction of a particle beam. A dummy absorber has water-equivalent thickness equal to an average water-equivalent thickness of the sensors. A signal-processing unit calculates sensor-specific calibration coefficients using a measurement result obtained during irradiation of the radiation detector with the radiation when electrical signals developed in each sensor are measured, and a measurement result obtained during irradiation of the radiation detector with the radiation when the sensor section is moved in the traveling direction of the radiation, then the dummy absorber is set in place, and electrical signals developed in each sensor are measured.
摘要翻译：放射线检测器和校准方法的叠层式，能够使辐射探测器能够在短时间内轻松地校正传感器特定输出的变化，而无需使用水体模型剂量检测器。放射线检测器配备有传感器部分，其包括沿粒子束的行进方向分层布置的多个传感器。虚拟吸收器的水当量厚度等于传感器的平均水当量厚度。信号处理单元使用在辐射检测器的照射期间获得的测量结果来计算传感器特定的校准系数，该测量结果在测量每个传感器中显现的电信号时具有辐射，并且在辐射检测器的辐射期间获得的测量结果传感器部分在辐射的行进方向上移动，然后将该虚拟吸收体置于适当的位置，并测量在每个传感器中显现的电信号。

15. 发明申请

US20130083895A1 REAL-TIME TRACKING RADIATION THERAPY SYSTEM 审中-公开
标题翻译：实时跟踪辐射治疗系统
公开(公告)号：US20130083895A1
公开(公告)日：2013-04-04
申请号：US13632480
申请日：2012-10-01
申请人： HITACHI, LTD.
发明人： Toru UMEKAWA , Yusuke FUJII
IPC分类号： G01N23/04
CPC分类号： A61N5/1049 , A61B6/06 , A61B6/4014 , A61B6/542 , A61N2005/1061
摘要： A real-time tracking radiotherapy system includes, therapeutic radiation irradiation device, at least two X-ray imaging devices, a target position recognizing section, a therapeutic radiation irradiation control section, each X-ray imaging device including an X-ray, an X-ray detector, and X-ray variable diaphragms, a transit region calculation section, a radiography range setting section, and a diaphragm control section. The real-time tracking radiotherapy system is capable of appropriately setting a radiography range using a computed transit region of a target or an surrogate marker and achieving a reduction in the amount of X-ray exposure.
摘要翻译：实时跟踪放射线治疗系统包括治疗放射线照射装置，至少两个X射线摄像装置，目标位置识别部，治疗放射线照射控制部，X射线摄影装置，X射线射线检测器和X射线可变光阑，过渡区域计算部，射线照相范围设定部和光阑控制部。实时跟踪放射治疗系统能够使用计算出的目标或替代标记的运送区域适当地设置射线照相范围，并且实现X射线曝光量的减少。

16. 发明公开

US20240082603A1 WORKFLOW MANAGEMENT SYSTEM, RADIOTHERAPY SYSTEM, AND WORKFLOW MANAGEMENT METHOD 审中-公开
公开(公告)号：US20240082603A1
公开(公告)日：2024-03-14
申请号：US18027466
申请日：2021-08-10
申请人： HITACHI, LTD.
发明人： Takahiro YAMADA , Yusuke FUJII , Toru UMEKAWA , Yoshihiko NAGAMINE , Takao KIDANI
IPC分类号： A61N5/10
CPC分类号： A61N5/1038 , G16H20/40
摘要： A time required for online adaptive treatment is reduced with a workflow management system that executes a plurality of processes for radiotherapy according to a predetermined workflow. The plurality of processes include at least a first process and a second process, and the workflow management system executes the following modules, in parallel, including a first module that is included in the first process, displays a result of a first calculation based on a patient image captured during treatment by an imaging apparatus that captures a predetermined region of a patient, and requests an input from an operator; and a second module that is included in the second process, and executes a second calculation based on the patient image during the treatment.

17. 发明申请

US20140046113A1 TREATMENT PLANNING SYSTEM, DEVICE FOR CALCULATING A SCANNING PATH AND PARTICLE THERAPY SYSTEM 有权
标题翻译：治疗计划系统，计算扫描路径和颗粒治疗系统的装置
公开(公告)号：US20140046113A1
公开(公告)日：2014-02-13
申请号：US14055921
申请日：2013-10-17
申请人： HITACHI, LTD.
发明人： Rintaro FUJIMOTO , Yoshihiko NAGAMINE , Masumi UMEZAWA , Toru UMEKAWA , Yusuke FUJII , Hiroshi AKIYAMA
IPC分类号： A61N5/10
CPC分类号： A61N5/1065 , A61N5/103 , A61N5/1043 , A61N2005/1087
摘要： In a particle therapy treatment planning system for creating treatment plan data, the movement of a target (patient's affected area) is extracted from plural tomography images of the target, and the direction of scanning is determined by projecting the extracted movement on a scanning plane scanned by scanning magnets. Irradiation positions are arranged on straight lines parallel with the scanning direction making it possible to calculate a scanning path for causing scanning to be made mainly along the direction of movement of the target. The treatment planning system can thereby realize dose distribution with improved uniformity.
摘要翻译：在用于创建治疗计划数据的粒子治疗计划系统中，从目标的多个断层摄影图像中提取目标（患者受影响区域）的运动，并且通过在扫描的扫描平面上投影所提取的运动来确定扫描的方向通过扫描磁铁。照射位置配置在与扫描方向平行的直线上，从而可以计算用于使扫描主要沿目标的移动方向进行扫描的扫描路径。因此，治疗计划系统可以实现具有改善的均匀性的剂量分布。

18. 发明申请

US20150217138A1 TREATMENT PLANNING SYSTEM, DEVICE FOR CALCULATING A SCANNING PATH AND PARTICLE THERAPY SYSTEM 审中-公开
标题翻译：治疗计划系统，计算扫描路径和颗粒治疗系统的装置
公开(公告)号：US20150217138A1
公开(公告)日：2015-08-06
申请号：US14686227
申请日：2015-04-14
申请人： HITACHI, LTD.
发明人： Rintaro FUJIMOTO , Yoshihiko NAGAMINE , Masumi UMEZAWA , Toru UMEKAWA , Yusuke FUJII , Hiroshi AKIYAMA
IPC分类号： A61N5/10
CPC分类号： A61N5/1065 , A61N5/103 , A61N5/1043 , A61N2005/1087
摘要： In a particle therapy treatment planning system for creating treatment plan data, the movement of a target (patient's affected area) is extracted from plural tomography images of the target, and the direction of scanning is determined by projecting the extracted movement on a scanning plane scanned by scanning magnets. Irradiation positions are arranged on straight lines parallel with the scanning direction making it possible to calculate a scanning path for causing scanning to be made mainly along the direction of movement of the target. The treatment planning system can thereby realize dose distribution with improved uniformity.
摘要翻译：在用于创建治疗计划数据的粒子治疗计划系统中，从目标的多个断层摄影图像中提取目标（患者受影响区域）的运动，并且通过在扫描的扫描平面上投影所提取的运动来确定扫描的方向通过扫描磁铁。照射位置配置在与扫描方向平行的直线上，从而可以计算用于使扫描主要沿目标的移动方向进行扫描的扫描路径。因此，治疗计划系统可以实现均匀性的改善。

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