公开(公告)号：US20130270448A1

公开(公告)日：2013-10-17

申请号：US13976563

申请日：2011-12-27

申请人： Takafumi Ishitsu ,  Takatoshi Maruyama ,  Katsutoshi Tsuchiya ,  Yuichiro Ueno

发明人： Takafumi Ishitsu ,  Takatoshi Maruyama ,  Katsutoshi Tsuchiya ,  Yuichiro Ueno

IPC分类号： G06T5/00 ,  G01T1/16

CPC分类号： G06T5/002 ,  A61B6/4241 ,  A61B6/4258 ,  A61B6/482 ,  A61B6/5217 ,  A61B6/585 ,  A61B90/361 ,  A61B2090/392 ,  G01T1/16 ,  G01T1/1647

摘要： An image processing device of a radiation image acquisition device (100) uses a weighted filter to perform a smoothing (processing S102) on an image obtained by counting the number of incident gamma rays. The image processing device suppresses pixel values of a threshold value or less on the smoothed image (processing S103). Further, the image processing device again applies a weighted and smoothing filter to the image processed by a threshold-value processing, to expand the pixels of the accumulation portion (processing S104); thus providing an image that facilitates finding the accumulation portion of a radioisotope.

摘要翻译： 放射线图像获取装置（100）的图像处理装置使用加权滤波器对通过对入射的伽马射线的数量进行计数而获得的图像进行平滑处理（处理S102）。 图像处理装置抑制平滑化图像的阈值以下的像素值（处理S103）。 此外，图像处理装置再次对通过阈值处理处理的图像应用加权平滑滤波器，以扩大累积部分的像素（处理S104）。 从而提供便于找到放射性同位素的累积部分的图像。

公开(公告)号：US08357904B2

公开(公告)日：2013-01-22

申请号：US13061857

申请日：2009-02-18

申请人： Katsutoshi Tsuchiya ,  Takafumi Ishitsu ,  Tsuneaki Kawaguchi

发明人： Katsutoshi Tsuchiya ,  Takafumi Ishitsu ,  Tsuneaki Kawaguchi

IPC分类号： G01T1/161

CPC分类号： A61B6/08 ,  A61B6/037 ,  A61B6/4291 ,  A61B6/4405 ,  A61B6/4482 ,  A61B90/37

摘要： A radiation imaging apparatus comprises display means for displaying an image obtained by imaging an object and light projection means for projecting a light projection mark onto the object, and displays a light projection position on the object onto which the light projection mark is projected on the image. The light projection mark is projected as a line of intersection which is perpendicular to the surface of a detector and at which two planar flat light beams visually intersect each other, and the light projection position on the image is moved according to the movements of the flat light beams. By calculating projected lines obtained by projecting the light projection lines projected onto the object by the flat light beams onto the surface and displaying the projected lines on the image, the light projection position is displayed as a point of intersection of the projected lines on the image.

摘要翻译： 一种放射线成像装置，包括：显示装置，用于显示通过对物体成像获得的图像;以及光投射装置，用于将光投射标记投射到物体上，并且将光投射位置显示在投射有光投射标记的物体上， 。 光投影标记被投影为与检测器的表面垂直的两条平面平面光束彼此目视相交的交叉线，并且图像上的光投射位置根据平面的移动而移动 光束。 通过计算通过将平坦光束投射到物体上的光投射线投射到表面上并且将图像上的投影线投影到投影线上而获得的投影线，将光投影位置显示为图像上的投影线的交点 。

公开(公告)号：US20120326045A1

公开(公告)日：2012-12-27

申请号：US13580556

申请日：2011-02-03

申请人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

发明人： Tomoyuki Seino ,  Yuichiro Ueno ,  Takafumi Ishitsu

IPC分类号： G01T1/02

CPC分类号： G01T1/247 ,  G01T1/17

摘要： The purpose of the present invention is to improve energy resolving power and prevent energy resolving power from deteriorating when a thick semiconductor detection element with a wide energy range is used, in a radiation measuring device using a semiconductor detector and a nuclear medicine diagnostic device. With the present invention, the purpose is achieved by pulsed wave value correction employing the difference of (Hs−Hf) between the pulsed wave height value Hs obtained from the slow speed shaping circuit, and the pulsed wave height value Hf obtained from the fast speed shaping circuit and normalized with respect to Hs. An even more desirable result may be obtained by employing either (Hs−Hf)/Hf or exp(k(Hs−Hf)/Hf), wherein k is a coefficient to be optimized, said optimization being dependent on the measurement assembly.

摘要翻译： 本发明的目的在于在使用半导体检测器的放射线测量装置和核医学诊断装置中，当使用宽能量范围的厚半导体检测元件时，提高能量分辨能力，防止能量分辨能力劣化。 利用本发明，通过使用从慢速整形电路获得的脉冲波高值Hs和从快速成形电路得到的脉冲波高值Hf之间的（Hs-Hf）差的脉冲波值校正， 整形电路并相对于Hs进行归一化。 通过使用（Hs-Hf）/ Hf或exp（k（Hs-Hf）/ Hf）可以获得甚至更理想的结果，其中k是要优化的系数，所述优化取决于测量组件。

公开(公告)号：US20110204248A1

公开(公告)日：2011-08-25

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： G01T1/175 ,  G01T1/24 ,  G01T1/161

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：US07795590B2

公开(公告)日：2010-09-14

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，其上存在γ射线; 以及用于处理由每个检测器输出的γ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期望的γ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：US07488949B2

公开(公告)日：2009-02-10

申请号：US11206902

申请日：2005-08-19

申请人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Keiji Kobashi ,  Tomoyuki Seino ,  Katsutoshi Tsuchiya

发明人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Keiji Kobashi ,  Tomoyuki Seino ,  Katsutoshi Tsuchiya

IPC分类号： G01T1/24

CPC分类号： G01T1/1648 ,  A61B6/037 ,  A61B6/4488

摘要： A radiological imaging apparatus including a bed which supports an object to be examined and an imaging apparatus, wherein the imaging apparatus has a unit substrate including a first substrate including a radiation detector and a second substrate including a signal processing apparatus to which detection signals of the radiation detector are inputted and the first substrate is connected through a connector, and is provided with a heat insulating member of separating mutually a first area where the radiation detector is disposed from a second area where the signal processing apparatus is disposed, both of which are formed inside the imaging apparatus.

摘要翻译： 一种放射学成像装置，包括支撑待检查物体的床和成像装置，其中所述成像装置具有包括包括辐射检测器的第一基板和包括信号处理装置的第二基板的单位基板， 放射线检测器被输入并且第一基板通过连接器连接，并且设置有绝热构件，其相互隔离放射线检测器的第一区域与设置有信号处理设备的第二区域相分离，这两个部件是 形成在成像设备内部。

公开(公告)号：US07372036B2

公开(公告)日：2008-05-13

申请号：US11700918

申请日：2007-02-01

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： G01T1/249 ,  G01T1/243 ,  H01L27/14658 ,  H01R12/88

摘要： A radiological imaging apparatus allowing semiconductor radiation detectors to be easily replaced with new ones and densely arranged. Terminals (31cjk) and (33cjk) are provided on a bottom surface of a detector aggregate (40mn) including a plurality of semiconductor radiation detectors (1); the terminals is connected to electrodes (3 and 4) of the detectors (1). A plurality of zero insertion force connectors (56) are provided on a connecting device (33jk) installed on a support substrate (32h). The terminals (31cjk and 33cjk) are detachably attached to the zero insertion force connectors (56) to mount the detector aggregates (40mn) that are the semiconductor radiation detectors (1), on the support substrate (32h). When the detector aggregates (40mn) are attached to the zero insertion force connectors (56), since no frictional force acts on the terminals, the size of the gap between the detector aggregates (40mn) is reduced.

摘要翻译： 放射成像装置允许半导体辐射检测器容易地被新的检测器替换并且被密集地布置。 在包括多个检测器集合体的检测器集合体的底表面上提供端子（31c）和（33cjk） 的半导体辐射探测器（1）; 端子连接到检测器（1）的电极（3和4）。 多个零插入力连接器（56）设置在安装在支撑基板（32）上的连接装置（33JK）上。 端子（31c）和可拆卸地连接到零插入力连接器（56）上，以安装检测器集合体（40nnn / SUB>），作为半导体辐射检测器（1），在支撑衬底（32）上。 当检测器聚集（40nnnnn）附着到零插入力连接器（56）时，由于没有摩擦力作用在端子上，所以检测器聚集体之间的间隙的大小（40 < mn ）减少。

公开(公告)号：US07274021B2

公开(公告)日：2007-09-25

申请号：US11405626

申请日：2006-04-18

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： G01T1/164

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 α-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α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：US07202480B2

公开(公告)日：2007-04-10

申请号：US10950652

申请日：2004-09-28

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

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

IPC分类号： G01T1/24

CPC分类号： G01T1/2018 ,  G01T1/2928

摘要： The semiconductor radiological detector 1 minimizes a dead space resulting from the draw-out of a signal line from an electrode and which allows a number of semiconductor devices to be densely arranged to improve sensitivity and spatial resolution. The semiconductor radiological detector 1 comprises a semiconductor device 2, an anode 3 attached to one surface of the semiconductor device 2, and a cathode 4 attached to the other surface of the semiconductor device 2. A signal line 5 is provided on the anode 3; the signal line 5 extends straight from the anode 3 and is connected to an X axis wire 12. Another signal line 13 is provided on the cathode 4; the signal line 13 extends straight from the cathode 4 and is connected to a Y axis wire 14.

摘要翻译： 半导体放射检测器1使从电极引出的信号线引起的死空间最小化，并且允许多个半导体器件被密集地布置以提高灵敏度和空间分辨率。 半导体放射线检测器1包括半导体器件2，安装在半导体器件2的一个表面上的阳极3和附着到半导体器件2的另一个表面的阴极4.信号线5设置在阳极3上; 信号线5从阳极3直线延伸并连接到X轴线12.另一个信号线13设置在阴极4上; 信号线13从阴极4直线延伸并连接到Y轴线14。

公开(公告)号：US20060065848A1

公开(公告)日：2006-03-30

申请号：US11206902

申请日：2005-08-19

申请人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Keiji Kobashi ,  Tomoyuki Seino ,  Katsutoshi Tsuchiya

发明人： Yuuichirou Ueno ,  Kensuke Amemiya ,  Norihito Yanagita ,  Takafumi Ishitsu ,  Keiji Kobashi ,  Tomoyuki Seino ,  Katsutoshi Tsuchiya

IPC分类号： G01T1/24

CPC分类号： G01T1/1648 ,  A61B6/037 ,  A61B6/4488

摘要： A radiological imaging apparatus including a bed which supports an object to be examined and an imaging apparatus, wherein the imaging apparatus has a unit substrate including a first substrate including a radiation detector and a second substrate including a signal processing apparatus to which detection signals of the radiation detector are inputted and the first substrate is connected through a connector, and is provided with a heat insulating member of separating mutually a first area where the radiation detector is disposed from a second area where the signal processing apparatus is disposed, both of which are formed inside the imaging apparatus.