公开(公告)号：US08395128B2

公开(公告)日：2013-03-12

申请号：US13201549

申请日：2009-02-16

申请人： Kazumi Tanaka ,  Yoshihiro Inoue ,  Masaharu Amano ,  Tetsuro Mizuta ,  Atsushi Ohtani

发明人： Kazumi Tanaka ,  Yoshihiro Inoue ,  Masaharu Amano ,  Tetsuro Mizuta ,  Atsushi Ohtani

IPC分类号： G01J1/42

CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/037 ,  A61B6/4266 ,  A61B6/487 ,  G01T1/1611

摘要： One purpose of this invention is to provide radiation tomography apparatus with easier maintenance. A specific approach for this purpose is as follows. That is, a detector ring in the radiation tomography apparatus includes two or more rings. Moreover, a ring moves as to approach a next ring, whereby both the rings are connected. If radiation tomography is conducted while a clearance is provided between the rings, detection sensitivity of the detector ring decreases due to the clearance. On the other hand, according to this invention, the ring moves as to approach the next ring, which results in a narrower clearance. Accordingly, radiation that is not observed may be reduced as much as possible.

摘要翻译： 本发明的一个目的是提供易于维护的放射线断层摄影装置。 为此目的的具体方法如下。 也就是说，辐射断层摄影装置中的检测器环包括两个或更多个环。 此外，环移动以接近下一个环，由此两个环被连接。 如果在环之间提供间隙的情况下进行放射线断层摄影，则检测环的检测灵敏度由于间隙而减小。 另一方面，根据本发明，环移动以接近下一个环，这导致更窄的间隙。 因此，尽可能地减少未观察到的辐射。

公开(公告)号：US06262805B1

公开(公告)日：2001-07-17

申请号：US08679250

申请日：1996-07-12

申请人： Yuji Ishikawa ,  Motoaki Yoshino ,  Masao Kiguchi ,  Masaya Kondo ,  Atsushi Ohtani ,  Kazuomi Oishi

发明人： Yuji Ishikawa ,  Motoaki Yoshino ,  Masao Kiguchi ,  Masaya Kondo ,  Atsushi Ohtani ,  Kazuomi Oishi

IPC分类号： H04N132

CPC分类号： H04N1/00238 ,  H04N1/00204 ,  H04N1/00206 ,  H04N1/00236 ,  H04N1/00241 ,  H04N1/00915 ,  H04N1/32502 ,  H04N1/32512 ,  H04N2201/0067 ,  H04N2201/0068 ,  H04N2201/0074 ,  H04N2201/0081 ,  H04N2201/0082 ,  H04N2201/0086

摘要： An image communication apparatus converts image data received through a communication line into bit image data to be reproduced as a visible image by means of using a data converting unit and a reproducing unit. The apparatus converts data from a data processing apparatus into bit image data to be reproduced as a visible image by means of using the data converting unit and the reproducing unit, so as to accomplish an efficient system as a whole.

公开(公告)号：US5822407A

公开(公告)日：1998-10-13

申请号：US649463

申请日：1996-05-17

申请人： Atsushi Ohtani

发明人： Atsushi Ohtani

IPC分类号： H04N1/00 ,  H04M1/247 ,  H04M11/00 ,  H04N1/32 ,  H04Q9/00 ,  H04M1/64

CPC分类号： H04M1/247 ,  H04M11/007

摘要： In a communication apparatus remotely controlled by a remote control signal from a near terminal and a remote control signal from a remote terminal, when amplifying a received signal by an amplifier and detecting a remote control signal based on the amplified signal, the amplification degree of the amplifier is changed between when receiving a remote control signal from the near terminal and when receiving a remote control signal from the remote terminal.

摘要翻译： 在由远端终端的遥控信号远程控制的通信装置和来自远程终端的遥控信号中，当放大器放大接收到的信号并基于放大信号检测遥控信号时，放大程度 放大器在从近端接收远程控制信号和从远程终端接收远程控制信号之间改变。

公开(公告)号：US5726768A

公开(公告)日：1998-03-10

申请号：US165502

申请日：1993-12-13

申请人： Yuji Ishikawa ,  Motoaki Yoshino ,  Masao Kiguchi ,  Masaya Kondo ,  Atsushi Ohtani ,  Kazuomi Oishi

发明人： Yuji Ishikawa ,  Motoaki Yoshino ,  Masao Kiguchi ,  Masaya Kondo ,  Atsushi Ohtani ,  Kazuomi Oishi

IPC分类号： H04L29/06 ,  B41J5/30 ,  B41J29/38 ,  G06T1/00 ,  H04L13/18 ,  H04M11/00 ,  H04N1/00 ,  H04N1/32 ,  H04N1/21

CPC分类号： H04N1/00238 ,  H04N1/00206 ,  H04N1/00236 ,  H04N1/00241 ,  H04N1/00915 ,  H04N1/32502 ,  H04N1/32512 ,  H04N1/00204 ,  H04N2201/0067 ,  H04N2201/0068 ,  H04N2201/0074 ,  H04N2201/0081 ,  H04N2201/0082 ,  H04N2201/0086

摘要： An image communication apparatus converts image data received through a communication line into bit image data to be reproduced as a visible image by means of using a data converting unit and a reproducing unit. The apparatus converts data from a data processing apparatus into bit image data to be reproduced as a visible image by means of using the data converting unit and the reproducing unit, so as to accomplish an efficient system as a whole.

摘要翻译： 图像通信装置通过使用数据转换单元和再现单元将通过通信线路接收的图像数据转换为要再现的可视图像的比特图像数据。 该装置通过使用数据转换单元和再现单元将数据从数据处理装置转换为位图像数据，作为可见图像再现，从而实现整体上的有效系统。

公开(公告)号：US08461518B2

公开(公告)日：2013-06-11

申请号：US13145786

申请日：2009-01-23

申请人： Tetsuro Mizuta ,  Yoshihiro Inoue ,  Masaharu Amano ,  Kazumi Tanaka ,  Atsushi Ohtani

发明人： Tetsuro Mizuta ,  Yoshihiro Inoue ,  Masaharu Amano ,  Kazumi Tanaka ,  Atsushi Ohtani

IPC分类号： G01D18/00

CPC分类号： G01T1/1644 ,  G01T1/1648 ,  G01T1/2985

摘要： This invention has one object to provide a method of collecting calibration data in radiation tomography apparatus that allows reliable collection of calibration data with a wide detector ring. In order to achieve this purpose, in the method of collecting calibration data in radiation tomography apparatus according to this invention, the number of coincidence events is obtained while the phantom that emits annihilation gamma-ray pairs moves as to pass through an inner hole of the detector ring. Such configuration dose not need the phantom having a width equal or larger than the detector ring, and may realize reliable collection of calibration data. Moreover, it may be considered that annihilation gamma-ray pairs have been emitted in uniform property without depending on positions of the detector ring. As a result, calibration data that is more suitable for removal of a image artifact may be obtained.

摘要翻译： 本发明的一个目的是提供一种在放射线断层摄影装置中收集校准数据的方法，其允许使用宽的检测器环可靠地收集校准数据。 为了实现这一目的，在根据本发明的放射线断层摄影装置中收集校准数据的方法中，获得符合事件的数量，同时发出湮灭伽马射线对的体模移动通过 探测器环。 这种配置不需要具有等于或大于检测器环的宽度的体模，并且可以实现校准数据的可靠收集。 此外，可以认为，湮没伽马射线对已经以均匀的性质发射，而不依赖于检测器环的位置。 结果，可以获得更适合去除图像伪像的校准数据。

公开(公告)号：US08450697B2

公开(公告)日：2013-05-28

申请号：US12597814

申请日：2007-04-27

申请人： Atsushi Ohtani

发明人： Atsushi Ohtani

IPC分类号： G01T1/00 ,  A61B6/00

CPC分类号： G01T1/1644 ,  A61B6/037 ,  G01T1/00 ,  G01T1/1648

摘要： A discrimination parameter calculation method for photon detectors in this invention, applies two types of fitting functions which approximate waveforms of count numbers relative to energy ratios to the data having accumulated output waveform signals, and calculates fitting parameters of both the fitting functions. Based on both the fitting parameters, count numbers which are 1/n of peaks of both the fitting functions, and a value of the energy ratio of both the fitting functions corresponding to the count numbers is calculated as discrimination parameter k. Thus, whatever kind first photon detecting elements 35 and second photon detecting elements 37 may be, since discrimination parameter k is automatically calculated based on the fitting parameters after carrying out a fitting with the fitting functions, the discrimination parameter can be calculated with high accuracy. It is therefore possible to obtain relatively easily discrimination parameter k which can fully bring out performance of the photon detectors 17.

摘要翻译： 本发明的光子检测器的辨别参数计算方法，将具有相对于能量比的计数数的波形近似的两种拟合函数应用于具有累加的输出波形信号的数据，并且计算拟合函数的拟合参数。 基于两个拟合参数，计算出两个拟合函数的峰值的1 / n的计数值和对应于计数数的两个拟合函数的能量比值作为鉴别参数k计算。 因此，无论什么样的第一光子检测元件35和第二光子检测元件37都可以，由于在进行拟合函数的拟合之后，基于拟合参数自动计算鉴别参数k，所以可以高精度地计算鉴别参数。 因此，可以获得能够充分发挥光子检测器17的性能的相对容易的鉴别参数k。

公开(公告)号：US20110288397A1

公开(公告)日：2011-11-24

申请号：US13147419

申请日：2009-02-03

申请人： Yoshihiro Inoue ,  Masaharu Amano ,  Kazumi Tanaka ,  Tetsuro Mizuta ,  Atsushi Ohtani

发明人： Yoshihiro Inoue ,  Masaharu Amano ,  Kazumi Tanaka ,  Tetsuro Mizuta ,  Atsushi Ohtani

IPC分类号： A61B6/00

CPC分类号： A61B6/0457 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5235

摘要： Provided is a medical image diagnosis apparatus which requires a small area for installation, has a short length in an axial direction of the apparatus, can reduce a problem of the strength of a top plate, and can simultaneously carry out dynamic PET-imaging of the entire body. A top plate (61) on which an examinee lies is moved through a tunnel of a CT gantry (2) and a PET gantry (3) to execute CT imaging and PET imaging. A PET unit consisting of a plurality (e.g. seven) of PET units (32) has a length of 2 m in the axis direction, the visual field thereof covers the whole body and the whole body can be simultaneously subjected to dynamic PET-imaging. For the maintenance of the PET gantry (3), the diagnosis apparatus is separated at an arbitrary PET unit (32) to be maintained, the apparatus slides on a rail (31) in the axis direction and is separated for maintenance operation. Accordingly, a large space for maintenance is not required and the area for installation is small.

摘要翻译： 提供一种医疗图像诊断装置，其需要小的安装区域，在装置的轴向具有短的长度，可以减少顶板的强度的问题，并且可以同时进行动态PET成像 全身 受检者所在的顶板（61）通过CT机架（2）和PET机架（3）的隧道移动，以执行CT成像和PET成像。 由多个（例如七个）PET单元（32）组成的PET单元在轴线方向上具有2m的长度，其视野覆盖整个身体，并且全身可以同时进行动态PET成像。 为了维护PET龙门架（3），诊断装置在任意的PET单元（32）处被分离以保持，该装置在轨道（31）上在轴向上滑动并被分离用于维护操作。 因此，不需要大的维护空间，并且安装区域小。

公开(公告)号：US07968849B2

公开(公告)日：2011-06-28

申请号：US12375445

申请日：2007-07-11

申请人： Atsushi Ohtani

发明人： Atsushi Ohtani

IPC分类号： G01T1/161

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： Whether a phenomenon of photon incidence on detectors is a double event or a single event is determined (step S1). When it is a double event, emission data is collected (S2), and is put to an image reconstruction process (S3). When it is a single event, on the other hand, the data is collected as data for calibration (S4), and is put to a calibration process (S5). Since the data for calibration is collected during a clinical practice, a PET apparatus can be calibrated frequently without lowering the operating ratio of the apparatus.

摘要翻译： 检测器中光子入射的现象是双重事件还是确定单个事件（步骤S1）。 当是双重事件时，收集发射数据（S2），并将其放入图像重构处理（S3）。 另一方面，当是单个事件时，将数据作为校准数据（S4）收集，并进行校准处理（S5）。 由于在临床实践中收集用于校准的数据，所以可以频繁地校准PET装置，而不降低装置的操作比。

公开(公告)号：US20090309031A1

公开(公告)日：2009-12-17

申请号：US12375445

申请日：2007-07-11

申请人： Atsushi Ohtani

发明人： Atsushi Ohtani

IPC分类号： G01T1/161

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： Whether a phenomenon of photon incidence on detectors is a double event or a single event is determined (step S1). When it is a double event, emission data is collected (S2), and is put to an image reconstruction process (S3). When it is a single event, on the other hand, the data is collected as data for calibration (S4), and is put to a calibration process (S5). Since the data for calibration is collected during a clinical practice, a PET apparatus can be calibrated frequently without lowering the operating ratio of the apparatus.

摘要翻译： 检测器中光子入射的现象是双重事件还是确定单个事件（步骤S1）。 当是双重事件时，收集发射数据（S2），并将其放入图像重构处理（S3）。 另一方面，当是单个事件时，将数据作为校准数据（S4）收集，并进行校准处理（S5）。 由于在临床实践中收集用于校准的数据，所以可以频繁地校准PET装置，而不降低装置的操作比。

公开(公告)号：US20090012718A1

公开(公告)日：2009-01-08

申请号：US12281125

申请日：2007-03-06

申请人： Atsushi Ohtani ,  Tatsuru Imanishi

发明人： Atsushi Ohtani ,  Tatsuru Imanishi

IPC分类号： G01T1/161 ,  A61B6/03

CPC分类号： G01T1/1611 ,  A61B6/032 ,  A61B6/037

摘要： The function of an accumulated amount deriving part 14 can obtain the variation with time of the accumulated amount in the subject based on the radiopharmaceutical in a condition being separated for each radiopharmaceutical, that is, the second variation with time that is a function of the accumulated amount using the first variation with time that is a variation with time of a projection data measured by the projection data deriving part 10. The accumulated image acquisition part 15 acquires the accumulated image of each radiopharmaceutical to be provided for nuclear medicine diagnosis based on the second variations with time separated in this way, enabling the nuclear medicine diagnosis in administration of a variety of radiopharmaceuticals.

摘要翻译： 累积量导出部14的功能可以在每个放射性药剂分离的条件下，基于放射线药物，即随时间变化而随着时间的变化随时间变化， 使用第一变化量与投影数据导出部分10测量的投影数据随时间的变化的时间量。累积图像获取部分15基于第二变化获得用于核医学诊断的每个放射性药物的累积图像 随着时间分离的变化，使得在各种放射性药物的管理中能够进行核医学诊断。