公开(公告)号：US20060065836A1

公开(公告)日：2006-03-30

申请号：US11199262

申请日：2005-08-09

申请人： Katsutoshi Tsuchiya ,  Hiroshi Kitaguchi ,  Yuichi Morimoto ,  Shinya Kominami ,  Kazuma Yokoi ,  Tsuneaki Kawaguchi ,  Masatoshi Tanaka ,  Takafumi Ishitsu

发明人： Katsutoshi Tsuchiya ,  Hiroshi Kitaguchi ,  Yuichi Morimoto ,  Shinya Kominami ,  Kazuma Yokoi ,  Tsuneaki Kawaguchi ,  Masatoshi Tanaka ,  Takafumi Ishitsu

IPC分类号： G21K1/02

CPC分类号： G01T1/1648 ,  A61B6/037

摘要： Disclosed herein is a radiation imaging apparatus and radiation-imaging-apparatus-based nuclear medicine diagnosis apparatus having a collimator in which a plurality of rectangular through-holes are arranged in a grid pattern and separated by septa is rotated through a predetermined angle as viewed from above in relation to the layout of a plurality of rectangular detectors that are arranged in a grid pattern. The predetermined angle ranges from 20 to 70 degree and more preferably from 30 deg to 60 deg. With this configuration, the influence of sensitivity variations (moire patterns) that are included in an image picked up due to interference with a collimator when pixel type detectors are used is eliminated.

摘要翻译： 本发明公开了一种辐射成像装置和基于放射成像装置的核医学诊断装置，其具有准直仪，其中多个矩形通孔以网格图案排列并且由隔片隔开，从而从其观察时旋转预定角度 相对于以网格图案排列的多个矩形检测器的布局。 预定角度为20至70度，更优选为30度至60度。 利用这种配置，消除了当使用像素型检测器时由于与准直器的干涉而拾取的图像中包括的灵敏度变化（莫尔图案）的影响。

公开(公告)号：US20060043309A1

公开(公告)日：2006-03-02

申请号：US11206738

申请日：2005-08-19

申请人： Kazuma Yokoi ,  Hiroshi Kitaguchi ,  Takafumi Ishitsu ,  Naoyuki Yamada ,  Kensuke Amemiya ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Norihito Yanagita

发明人： Kazuma Yokoi ,  Hiroshi Kitaguchi ,  Takafumi Ishitsu ,  Naoyuki Yamada ,  Kensuke Amemiya ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Norihito Yanagita

IPC分类号： G01T1/24

CPC分类号： G01T1/241 ,  G01T1/249

摘要： In a radiological imaging apparatus, a radiation detecting section includes semiconductor detectors arranged in four columns and four rows. Each of the semiconductor detectors includes a semiconductor base material, and an anode electrode film (first electrode film) and a cathode electrode film (second electrode film) lying opposite each other so as to sandwich the semiconductor base material between them. A first conductive member is installed on each first electrode film. Second electrode films of four semiconductor detectors within a row are connected together using one second conductive member. A shaping amplifier connected to the first conductive members with a wire executes a waveform shaping process using a shaping time shorter than that of a shaping amplifier connected to the second conductive member with a wire; the first conductive members are provided for the four semiconductor detectors within a column.

摘要翻译： 在放射线成像装置中，放射线检测部包括以四列四列排列的半导体检测器。 每个半导体检测器包括半导体基底材料，以及彼此相对放置以将半导体基底材料夹在它们之间的阳极电极膜（第一电极膜）和阴极电极膜（第二电极膜）。 第一导电构件安装在每个第一电极膜上。 一行中的四个半导体检测器的第二电极膜使用一个第二导电构件连接在一起。 使用导线连接到第一导电部件的整形放大器使用比使用导线连接到第二导电部件的整形放大器的成形时间短的成形时间来执行波形整形处理; 为列中的四个半导体检测器提供第一导电构件。

公开(公告)号：US20050067578A1

公开(公告)日：2005-03-31

申请号：US10874359

申请日：2004-06-24

申请人： Yuuichirou Ueno ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Kensuke Amemiya ,  Kazuma Yokoi ,  Shinichi Kojima ,  Norihito Yanagita ,  Takafumi Ishitsu

发明人： Yuuichirou Ueno ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Kensuke Amemiya ,  Kazuma Yokoi ,  Shinichi Kojima ,  Norihito Yanagita ,  Takafumi Ishitsu

IPC分类号： G01T1/161 ,  A61B6/03 ,  G01T1/24 ,  G01T1/29 ,  H01L27/14 ,  H01L31/09 ,  H04N5/32

CPC分类号： A61B6/032 ,  A61B6/037 ,  G01T1/1611 ,  G01T1/1614 ,  G01T1/243 ,  G01T1/249 ,  G01T1/2985 ,  H01L31/1085 ,  H01L31/119

摘要： The radiological imaging system which can improve an energy resolution and perform a diagnosis with high accuracy includes a bed for carrying an examinee H, first and second imaging apparatuses and disposed along the longitudinal direction of the bed. The first imaging apparatus has a plurality of semiconductor radiation detectors for detecting γ-rays emitted from the examinee H, arranged around the bed, the second imaging apparatus has an X-ray source for emitting X-rays to the examinee H and a radiation detector for detecting X-rays which have been emitted from the X-ray source and passed through the examinee H, and the bed is shared by the first imaging apparatus and the second imaging apparatus.

摘要翻译： 能够高精度地提高能量分辨率和进行诊断的放射线成像系统包括：用于携带被检体H的床，第一和第二成像装置，沿着床的长度方向配置。 第一成像装置具有多个半导体辐射检测器，用于检测从被检体H发射的伽马射线，布置在床周围，第二成像装置具有用于向被检体H发射X射线的X射线源和放射线检测器 用于检测从X射线源发射并通过受检者H的X射线，并且床由第一成像装置和第二成像装置共享。

公开(公告)号：US20050067577A1

公开(公告)日：2005-03-31

申请号：US10874225

申请日：2004-06-24

申请人： Norihito Yanagita ,  Hiroshi Kitaguchi ,  Takafumi Ishitsu ,  Kensuke Amemiya ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Shinichi Kojima ,  Kazuma Yokoi

发明人： Norihito Yanagita ,  Hiroshi Kitaguchi ,  Takafumi Ishitsu ,  Kensuke Amemiya ,  Yuuichirou Ueno ,  Katsutoshi Tsuchiya ,  Shinichi Kojima ,  Kazuma Yokoi

IPC分类号： G01T1/24 ,  A61B6/03 ,  G01T1/161 ,  G01T1/29 ,  H01L27/14 ,  H01L31/09 ,  H04N5/30

CPC分类号： G01T1/2928 ,  A61B6/037

摘要： A radiation imaging apparatus with high spatial resolution including semiconductor radiation detectors arranged on a wiring board capable of detecting γ-rays by separating their positions in the direction of incidence of γ-rays is provided. A semiconductor radiation detector is constructed by including five semiconductor devices made up of, for example, CdTe rectangular parallelepiped plates, a cathode electrode on one side of the semiconductor device, an anode electrode on the other side of the semiconductor device and an insulator for coating five semiconductor detection devices from the outside. The semiconductor radiation detector is mounted on a wiring board using an anode pin and a cathode pin.

摘要翻译： 提供了具有高空间分辨率的辐射成像装置，其包括布置在能够通过在伽马射线入射方向上分离它们的位置来检测伽马射线的布线板上的半导体辐射检测器。 半导体辐射检测器通过包括由例如CdTe长方体板构成的五个半导体器件，半导体器件的一侧上的阴极电极，半导体器件的另一侧的阳极电极和用于涂覆的绝缘体 五个半导体检测装置来自外部。 半导体辐射检测器使用阳极引脚和阴极引脚安装在布线板上。

公开(公告)号：US20050067571A1

公开(公告)日：2005-03-31

申请号：US10949403

申请日：2004-09-27

申请人： Norihito Yanagita ,  Yuuichirou Ueno ,  Kensuke Amemiya ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Shinichi Kojima ,  Kazuma Yokoi ,  Takafumi Ishitsu

发明人： Norihito Yanagita ,  Yuuichirou Ueno ,  Kensuke Amemiya ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Shinichi Kojima ,  Kazuma Yokoi ,  Takafumi Ishitsu

IPC分类号： G01T1/161 ,  G01T1/164 ,  G01T1/172

CPC分类号： G01T1/172

摘要： A γ-ray signal processing section 60′ determines a detection time of a γ ray based on a γ-ray detection signal outputted from a semiconductor radiation detector for detecting the γ ray, and determines the energy of the γ ray. Then, a time correction circuit 70 obtains, based on the energy of the γ ray, a detection value of the detection time that corresponds to the energy of the γ ray from a time correction table indicating the relationship between the energy of the γ ray and the correction value of the detection time of the γ ray, and corrects the detection time according to the obtained correction value of the detection time. Coincidence counting is performed on the γ ray in a coincidence counting circuit 80 based on the corrected detection time.

摘要翻译： 伽马射线信号处理部60'基于从用于检测伽马射线的半导体辐射检测器输出的γ射线检测信号来确定伽马射线的检测时间，并且确定伽马射线的能量。 然后，时间校正电路70根据伽马射线的能量，从表示伽马射线的能量与γ射线的能量的关系的时刻校正表，求出与γ射线的能量对应的检测时间的检测值 伽马射线的检测时间的校正值，并根据获得的检测时间的校正值来校正检测时间。 基于校正的检测时间，在重合计数电路80中对伽马射线进行一致性计数。

公开(公告)号：US08338792B2

公开(公告)日：2012-12-25

申请号：US12708933

申请日：2010-02-19

申请人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

发明人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

IPC分类号： G01T1/24

CPC分类号： G01T1/17

摘要： Provided between a bias power supply and a radiation detector are a noise filter and a bias voltage transmitting circuit. In a state where the bias voltage is applied, the noise filter circuit operates. In a state where the bias voltage is switched on and off, the bias voltage transmitting circuit and the noise filter circuit operate. In a state where the bias voltage is switched on and off, the bias voltage transmitting circuit operates.

摘要翻译： 偏置电源和辐射检测器之间设置有噪声滤波器和偏置电压发射电路。 在施加偏置电压的状态下，噪声滤波器电路工作。 在偏置电压接通和断开的状态下，偏置电压发射电路和噪声滤波器电路工作。 在偏置电压接通和断开的状态下，偏置电压发送电路工作。

公开(公告)号：US07807974B2

公开(公告)日：2010-10-05

申请号：US12034228

申请日：2008-02-20

申请人： Takafumi Ishitsu ,  Yuichiro Ueno ,  Kensuke Amemiya ,  Keiji Kobashi

发明人： Takafumi Ishitsu ,  Yuichiro Ueno ,  Kensuke Amemiya ,  Keiji Kobashi

IPC分类号： G01T1/166

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A nuclear medical diagnosis apparatus capable of attaining improvement of the sensitivity by the reduction of a count loss of the data is provided. A data sort section inside a data acquisition unit re-arranges and outputs the data packet from a plurality of auxiliary data acquisition unit in order of the detection time data. A coincidence detection section includes a pair check section and a pair generation section. The pair check section refers to a context on the data packet re-arranged in order of the detection time, and judges a pair relating to a coincidence counting. The pair generation section, based on this judgment result, merges the data packet used as a pair, and outputs the same to the collection work station.

摘要翻译： 提供了能够通过减少数据的计数损失来实现灵敏度提高的核医学诊断装置。 数据采集​​单元内的数据分类单元按照检测时间数据的顺序重新排列并输出来自多个辅助数据获取单元的数据分组。 符合检测部分包括对检查部分和对生成部分。 对检查部分是指按照检测时间的顺序重新排列的数据分组的上下文，并且判断与重合计数有关的一对。 基于该判断结果的对生成部合并作为一对使用的数据包，并将其输出到收集工作站。

公开(公告)号：US07573025B2

公开(公告)日：2009-08-11

申请号：US11676702

申请日：2007-02-20

申请人： Kazuma Yokoi ,  Kensuke Amemiya ,  Keiji Kobashi ,  Tomoyuki Seino ,  Takafumi Ishitsu ,  Isao Takahashi

发明人： Kazuma Yokoi ,  Kensuke Amemiya ,  Keiji Kobashi ,  Tomoyuki Seino ,  Takafumi Ishitsu ,  Isao Takahashi

IPC分类号： G01D18/00

CPC分类号： G01T7/005 ,  A61B6/037 ,  G01T1/1644 ,  G01T1/247 ,  G01T1/249

摘要： The energy calibration method detects irradiation of radiation with predetermined energy from a calibration radiation source using a plurality of radiation detectors having a peak value distribution whose mode and mean value are different and performs calibration so that mean values become identical within the peak value distributions of the respective radiation detectors obtained through irradiation of radiation with predetermined energy from the calibration radiation source.

摘要翻译： 能量校准方法使用具有其模式和平均值不同的峰值分布的多个辐射检测器来从校准辐射源检测具有预定能量的辐射的照射，并执行校准，使得平均值在峰值分布 通过用来自校准辐射源的预定能量照射辐射而获得的各个辐射探测器。

公开(公告)号：US20090114826A1

公开(公告)日：2009-05-07

申请号：US11861977

申请日：2007-09-26

申请人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

发明人： Isao Takahashi ,  Takafumi Ishitsu ,  Yuichiro Ueno ,  Tomoyuki Seino

IPC分类号： G01T1/164

CPC分类号： G01T1/249 ,  G01T1/2018

摘要： A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; and an analog ASIC and digital ASIC for processing a γ-ray detection signal outputted by each of the detectors. The analog ASIC includes two slow systems having mutually different time constants, each of which outputs a pulseheight value. A noise determination part of the digital ASIC determines whether a relevant detection signal is an intended γ-ray detection signal or a noise based on a correlation between the pulseheight values, and a noise counting part counts the number of times of noise determination, and a detector output signal processing control part controls the signal processing with respect to an output signal from a relevant detector based on the count.

摘要翻译： PET装置包括沿圆周方向的多个检测器单元，其中所述检测器单元包括多个单元基板，并且其中所述单元基板包括：多个检测器，伽马射线在其上入射; 以及用于处理由每个检测器输出的伽马射线检测信号的模拟ASIC和数字ASIC。 模拟ASIC包括具有相互不同的时间常数的两个慢速系统，每个时间常数输出脉冲高度值。 数字ASIC的噪声确定部分基于脉冲高度值之间的相关性来确定相关检测信号是否是预期的伽马射线检测信号或噪声，并且噪声计数部分对噪声确定的次数进行计数，并且 检测器输出信号处理控制部分基于计数来控制来自相关检测器的输出信号的信号处理。

公开(公告)号：US07528378B2

公开(公告)日：2009-05-05

申请号：US11714216

申请日：2007-03-06

申请人： Kazuma Yokoi ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Takafumi Ishitsu ,  Kensuke Amemiya

发明人： Kazuma Yokoi ,  Hiroshi Kitaguchi ,  Katsutoshi Tsuchiya ,  Takafumi Ishitsu ,  Kensuke Amemiya

IPC分类号： H01L27/146

CPC分类号： G01T1/2928

摘要： A radiological imaging apparatus comprising a semiconductor detector unit in which a plurality of semiconductor radiation detection elements are installed on a detector mounted substrate in a matrix to constitute a detector unit. A plurality of detector units are releasably mounted on a fixing substrate. This mounting is carried out mating a coupling screw with a threaded hole formed in the detector mounted substrate, the coupling screw being inserted through a through-hole formed in the fixing substrate. The detector mounted substrate is provided with a pair of positioning pins. The positioning pins are inserted into positioning holes, respectively, formed in the fixing substrate, to position the detector unit.

摘要翻译： 一种放射成像装置，包括半导体检测器单元，其中多个半导体辐射检测元件以矩阵形式安装在检测器安装的基板上以构成检测器单元。 多个检测器单元可释放地安装在固定基板上。 该安装件将联接螺钉与形成在检测器安装的基板中的螺纹孔配合，该联接螺钉通过形成在固定基板中的通孔插入。 检测器安装的基板设有一对定位销。 定位销分别插入到形成在定影基板中的定位孔中，以定位检测器单元。