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公开(公告)号：US08787647B2
公开(公告)日：2014-07-22
申请号：US13256551
申请日：2010-06-07
申请人： Kosuke Hirasawa , Hidenobu Sakamoto , Ryoichi Yamakoshi , Yasuo Kitaaki , Shinjiro Kawato , Haruhisa Okuda , Hiroshi Kage , Kazuhiko Sumi
发明人： Kosuke Hirasawa , Hidenobu Sakamoto , Ryoichi Yamakoshi , Yasuo Kitaaki , Shinjiro Kawato , Haruhisa Okuda , Hiroshi Kage , Kazuhiko Sumi
CPC分类号： A61B6/0457 , A61B90/36 , A61B2090/364 , G06T7/33 , G06T7/337 , G06T2207/10081 , G06T2207/30004 , G06T2207/30008 , G06T2207/30096
摘要： An image matching device in which, in automatic positioning calculation using an ICP method, a solution is converged to an optimal solution while avoiding reaching a local solution, and a patient positioning device using this matching device. The device includes a CT image data reading unit reading first and second CT image data, a point group data generation unit generating first and second point group data in a three-dimensional space by binarization processing and edge-extraction processing on sliced images of the first and second CT image data, respectively, a point group data resolution conversion unit thinning-out point group data so as to extend a point-group-data array pitch, and an ICP calculation unit obtaining, using an ICP method, a conversion amount for the second point group data so that an error function of the first point group data and the second point group data outputted from the point group data resolution conversion unit is minimized.
摘要翻译： 一种图像匹配装置，其中在使用ICP方法的自动定位计算中，解决方案被收敛到最佳解，同时避免达到局部解决方案，以及使用该匹配装置的患者定位装置。 该装置包括读取第一和第二CT图像数据的CT图像数据读取单元，通过二值化处理和三维空间中的第一和第二点组数据生成第一和第二点组数据的点组数据生成单元，对第一和第二CT图像数据的切片图像进行边缘提取处理 和第二CT图像数据分别是点组数据分辨率转换单元稀疏点组数据，以便扩展点组数据阵列间距，以及ICP计算单元，使用ICP方法获得用于 第二点组数据，使得从点组数据分辨率转换单元输出的第一点组数据和第二点组数据的误差函数最小化。
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公开(公告)号：US20110218429A1
公开(公告)日：2011-09-08
申请号：US12738705
申请日：2009-04-24
申请人： Hisashi Harada , Takaaki Iwata , Taizo Honda , Yuehu Pu , Yuichi Yamamoto , Toshihiro Otani , Hidenobu Sakamoto
发明人： Hisashi Harada , Takaaki Iwata , Taizo Honda , Yuehu Pu , Yuichi Yamamoto , Toshihiro Otani , Hidenobu Sakamoto
CPC分类号： A61N5/1077 , A61N2005/1087 , A61N2005/1095
摘要： There is obtained a particle beam therapy system in which the beam size is reduced. There are provided an accelerator 14 that accelerates a charged particle beam; an irradiation apparatus that has a beam scanning apparatus 5a, 5b for performing scanning with the charged particle beam and irradiates the charged particle beam onto an irradiation subject ; and a beam transport apparatus 15 that has a duct for ensuring a vacuum region or gas region that continues from the accelerator 14 to a beam outlet window 7 disposed at a more downstream position than the beam scanning apparatus 5a, 5b, and that transports the charged particle beam exiting from the accelerator 14 to the irradiation apparatus.
摘要翻译： 获得了粒径减小的粒子束治疗系统。 提供加速带电粒子束的加速器14; 具有用于利用带电粒子束进行扫描并将带电粒子束照射到照射对象上的光束扫描装置5a，5b的照射装置; 以及具有用于确保从加速器14延伸到设置在比光束扫描装置5a，5b的更下游位置处的光束出射窗口7的真空区域或气体区域的管道的光束传送装置15，并且传送带电 粒子束从加速器14离开到照射装置。
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公开(公告)号：US5159550A
公开(公告)日：1992-10-27
申请号：US460049
申请日：1990-01-02
申请人： Hidenobu Sakamoto , Masataka Nagao
发明人： Hidenobu Sakamoto , Masataka Nagao
IPC分类号： G01R33/567
CPC分类号： G01R33/4838 , G01R33/56509 , G01R33/4835
摘要： An artifact suppression system for a magnetic resonance imaging apparatus, comprising static field application means for applying a static field to a subject, RF pulse application means for applying RF pulses, gradient field application means for applying gradient fields which consist of a slice field for designating a tomographic slice, a phase encode field for affording a phase encode magnitude, and a signal read field for encoding a frequency, and sequence control means for controlling a signal acquistion sequence which acquires a magnetic resonance signal from the designated tomographic slice of the subject, and a saturation sequence which saturates spins of movable objects to traverse the designated tomographic slice of the subject for the signal acquisition, before execution of the signal acquisition sequence.
摘要翻译： 一种用于磁共振成像装置的伪影抑制系统，包括用于向对象施加静态场的静态场施加装置，用于施加RF脉冲的RF脉冲施加装置，用于施加梯度场的梯度场施加装置，所述梯度场包括用于指定 断层图像切片，用于提供相位编码幅度的相位编码场，以及用于对频率进行编码的信号读取场;以及序列控制装置，用于控制从被摄体的指定断层图像获取磁共振信号的信号采集序列， 以及在执行信号获取序列之前饱和可移动物体的旋转以饱和被摄体的指定层析切片进行信号采集的饱和度序列。
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公开(公告)号：US4719581A
公开(公告)日：1988-01-12
申请号：US670579
申请日：1984-11-13
摘要： A signal processing unit which employs a constant, continuous and automatic error correction. The prior manual calibration to eliminate errors is eliminated. An echo signal is employed for ease of design.
摘要翻译： 信号处理单元，采用恒定，连续和自动的纠错。 消除了以前的手动校准以消除错误。 采用回波信号以方便设计。
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公开(公告)号：US07054801B2
公开(公告)日：2006-05-30
申请号：US09904889
申请日：2001-07-16
申请人： Hidenobu Sakamoto , Yuehu Pu
发明人： Hidenobu Sakamoto , Yuehu Pu
CPC分类号： A61N5/103 , A61N2005/1087
摘要： A radiation exposure region to be irradiated with particle beams and a peripheral region thereof are respectively divided into pluralities of exposure regions, radiation treatment simulation for applying particle beams according to the shape of each divided exposure region is performed, and a radiation treatment condition is obtained for causing the flatness of the radiation exposure region to be in a desired range, and a dose of particle beams applied to the unit exposure region of the peripheral region to be minimum. Thus, the problem of low efficiency of radiation is solved.
摘要翻译： 将用粒子束照射的放射线照射区域及其周边区域分别分割为多个曝光区域，进行根据各分割曝光区域的形状施加粒子束的放射线处理模拟，得到放射线处理条件 用于使辐射曝光区域的平坦度处于期望的范围内，并且将施加到周围区域的单元曝光区域的粒子束的剂量最小化。 因此解决了辐射效率低的问题。
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6.发明授权Spool distortion correction method for an x-ray radiograph diagnosis device 失效用于X射线X光片诊断装置的假脱机畸变校正方法
公开(公告)号：US5263074A
公开(公告)日：1993-11-16
申请号：US869506
申请日：1992-04-16
申请人： Hidenobu Sakamoto
发明人： Hidenobu Sakamoto
CPC分类号： H05G1/60
摘要： In accordance with the distortion correction method for an X-ray radiograph diagnosis device, the distortion center of the X-ray image is determined by use of a plate-shaped object having a circular marker M and a marker center M.sub.0. On the basis of the positions of the sample points M.sub.1 through M.sub.4 upon the circular marker M, the distortion center is inferred. Further, a grid marker pattern is used to determine the magnitudes of pincushion distortion at respective distances from the distortion center. The correction coefficients for correcting the spool distortion at respective distances from the distortion center are determined on the basis of the relationship between the physical and displayed distances from the marker center M.sub.0 to the sample points.
摘要翻译： 根据X射线摄影诊断装置的畸变校正方法，通过使用具有圆形标记M和标记中心M0的板状物体来确定X射线图像的畸变中心。 基于圆形标记M上的采样点M1至M4的位置，推断变形中心。 此外，使用网格标记图案来确定在与失真中心相距的距离处的枕形失真的幅度。 基于从标记中心M0到采样点的物理距离和显示距离之间的关系来确定用于校正来自失真中心的各距离的线轴失真的校正系数。
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公开(公告)号：US4857849A
公开(公告)日：1989-08-15
申请号：US172885
申请日：1988-03-25
申请人： Hidenobu Sakamoto
发明人： Hidenobu Sakamoto
IPC分类号： G01R33/341
CPC分类号： G01R33/3678
摘要： The high frequency magnetic field generating portions are arranged at spatially different positions, respectively, and high frequency currents having phase difference corresponding to a spatial deviation between the high frequency magnetic field generating portions are supplied to the high frequency magnetic field generating portions, resultant high frequency magnetic fields being combined to produce a single rotating magnetic field.
摘要翻译： 高频磁场产生部分分别设置在空间上不同的位置，并且具有与高频磁场产生部分之间的空间偏差相对应的相位差的高频电流被提供给高频磁场产生部分，从而产生高频磁场产生部分 磁场被组合以产生单个旋转磁场。
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公开(公告)号：US4965520A
公开(公告)日：1990-10-23
申请号：US284419
申请日：1988-12-14
申请人： Hidenobu Sakamoto
发明人： Hidenobu Sakamoto
IPC分类号： G01R33/54
CPC分类号： G01R33/4828
摘要： In an NMR imaging method, the phase encode amount applied to the respective echo signals in the same sequence of operation are made to have different values and the phase encoding magnetic fields Gen are made to disorder the phases of the NMR signals so as not to generate stimulated echo signals. In another aspect, the time periods of application of the signal reading magnetic field Gp applied between the 90.degree. RF pulse and the 180.degree. RF pulse are made to have different values equal in number to the chemical shifts. By varying the time period of application of the signal reading magnetic field, spin echo signals having different phase variance amounts due to the different chemical shifts are generated before or after the time point at which the spin echo due to the RF pulse is expected to occur. Accordingly, control difficulties for synchronizing the RF pulse and the slicing magnetic field and shifting them by the same time length is avoided wherein two chemical shifts can be separated.
摘要翻译： 在NMR成像方法中，以相同的操作顺序施加到各个回波信号的相位编码量使得具有不同的值，并且使相位编码磁场Gen成为使NMR信号的相位紊乱从而不产生 刺激的回波信号。 另一方面，在90°RF脉冲和180°RF脉冲之间施加信号读取磁场Gp的时间周期被制成具有与化学位移相等数量的不同值。 通过改变施加信号读取磁场的时间周期，在由于RF脉冲引起的自旋回波预期发生的时间点之前或之后产生由于不同的化学位移而具有不同相位变化量的自旋回波信号 。 因此，避免了使RF脉冲和切片磁场同步并将其移位相同时间长度的控制困难，其中两个化学位移可以分离。
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公开(公告)号：US08314411B2
公开(公告)日：2012-11-20
申请号：US12738705
申请日：2009-04-24
申请人： Hisashi Harada , Takaaki Iwata , Taizo Honda , Yuehu Pu , Yuichi Yamamoto , Toshihiro Otani , Hidenobu Sakamoto
发明人： Hisashi Harada , Takaaki Iwata , Taizo Honda , Yuehu Pu , Yuichi Yamamoto , Toshihiro Otani , Hidenobu Sakamoto
IPC分类号： A61N5/10 , H01J37/256
CPC分类号： A61N5/1077 , A61N2005/1087 , A61N2005/1095
摘要： There is obtained a particle beam therapy system in which the beam size is reduced. There are provided an accelerator 14 that accelerates a charged particle beam; an irradiation apparatus that has a beam scanning apparatus 5a, 5b for performing scanning with the charged particle beam and irradiates the charged particle beam onto an irradiation subject; and a beam transport apparatus 15 that has a duct for ensuring a vacuum region or gas region that continues from the accelerator 14 to a beam outlet window 7 disposed at a more downstream position than the beam scanning apparatus 5a, 5b, and that transports the charged particle beam exiting from the accelerator 14 to the irradiation apparatus.
摘要翻译： 获得了粒径减小的粒子束治疗系统。 提供加速带电粒子束的加速器14; 具有用于利用带电粒子束进行扫描并将带电粒子束照射到照射对象上的光束扫描装置5a，5b的照射装置; 以及具有用于确保从加速器14延伸到设置在比光束扫描装置5a，5b的更下游位置处的光束出射窗口7的真空区域或气体区域的管道的光束传送装置15，并且传送带电 粒子束从加速器14离开到照射装置。
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公开(公告)号：US06256591B1
公开(公告)日：2001-07-03
申请号：US09091158
申请日：1998-06-09
IPC分类号： G06F1700
CPC分类号： A61N5/1031 , A61N2005/1087
摘要： The ratio a between an energy distribution vector UP is calculated by using a density distribution P, and a desired energy distribution vector V to obtain an energy source density distribution P/a. Thus, the intensity of an energy distribution can be varied, and the irradiation of unnecessary portions of the human body can be avoided when an tumor in the human body is irradiated with an energy distribution.
摘要翻译： 通过使用密度分布P和期望的能量分布矢量V来计算能量分布矢量UP之间的比率a，以获得能量密度分布P / a。 因此，可以改变能量分布的强度，并且当用能量分布照射人体中的肿瘤时，可以避免人体不必要部分的照射。
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