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81. 发明授权

US07563229B2 Method and apparatus for automatically measuring delay of tissue motion and deformation 有权
标题翻译：自动测量组织运动和变形延迟的方法和装置
公开(公告)号：US07563229B2
公开(公告)日：2009-07-21
申请号：US10459289
申请日：2003-06-11
申请人： Andreas Heimdal
发明人： Andreas Heimdal
IPC分类号： A61B8/00
CPC分类号： G01S7/52087 , A61B5/0456 , A61B8/08 , A61B8/0883 , G01S7/52042 , G01S7/52071 , G01S7/52074
摘要： System and method for automatically measuring the delay of tissue motion and deformation. For example, asynchrony may be measured between the left and right ventricles and within the left ventricle. A measurement feature may be defined by default or obtained using a user input. A reference time and a search interval are identified. The search interval may be based on the reference time, or input or modified by a user. A time delay of the measurement feature within the search interval is calculated for each sample. At least one color is assigned to the samples corresponding to the calculated time delay.
摘要翻译：自动测量组织运动和变形延迟的系统和方法。例如，可以在左心室和右心室之间以及左心室内测量不同步。测量功能可以默认定义，也可以使用用户输入获得。识别参考时间和搜索间隔。搜索间隔可以基于参考时间，或者由用户输入或修改。针对每个样本计算搜索间隔内的测量特征的时间延迟。至少一种颜色被分配给对应于所计算的时间延迟的样本。

82. 发明授权

US07560933B2 MRI apparatus and RF pulse generating circuit 失效
标题翻译： MRI装置和RF脉冲发生电路
公开(公告)号：US07560933B2
公开(公告)日：2009-07-14
申请号：US12103557
申请日：2008-04-15
申请人： Nobuhiro Yoshizawa
发明人： Nobuhiro Yoshizawa
IPC分类号： G01V3/00
CPC分类号： G01R33/3607 , G01R33/3621
摘要： An MRI apparatus includes: an RF coil to which analog RF pulse signals are applied; an RF pulse generating circuit which generates said analog RF pulse signals; and a magnetic resonance signal receiving circuit which receives analog magnetic resonance signals and converts these signals into baseband digital magnetic resonance signals, said RF pulse generating circuit comprising: a carrier signal generator which generates a digital carrier signal having a predetermined number of bits; a digital modulator which modulates said digital carrier signal with a digital envelope signal, thus generating digital RF pulse signals; a digital-analog converter which converts said digital RF pulse signals into the analog RF pulse signals; and an inversion unit which generates a digital inverted carrier signal having a two's complement relationship with said digital carrier signal and sends the digital inverted carrier signal to said magnetic resonance signal receiving circuit, said magnetic resonance signal receiving circuit comprising: an analog-digital converter which converts the analog magnetic resonance signals into digital magnetic resonance signals having a predetermined number of bits; and a digital demodulator which demodulates said digital magnetic resonance signals with said digital inverted carrier signal, thus converting these signals into the baseband digital magnetic resonance signals.
摘要翻译： MRI装置包括：施加模拟RF脉冲信号的RF线圈; 产生所述模拟RF脉冲信号的RF脉冲发生电路; 以及磁共振信号接收电路，其接收模拟磁共振信号并将这些信号转换为基带数字磁共振信号，所述RF脉冲发生电路包括：载波信号发生器，其产生具有预定位数的数字载波信号; 数字调制器，用数字包络信号调制所述数字载波信号，从而产生数字RF脉冲信号; 数模转换器，其将所述数字RF脉冲信号转换成模拟RF脉冲信号; 以及反转单元，其生成与所述数字载波信号具有二进制补码关系的数字反相载波信号，并将数字反相载波信号发送到所述磁共振信号接收电路，所述磁共振信号接收电路包括：模数转换器，将模拟磁共振信号转换成具有预定位数的数字磁共振信号; 以及数字解调器，其用所述数字反相载波信号解调所述数字磁共振信号，从而将这些信号转换成基带数字磁共振信号。

83. 发明授权

US07549799B2 Radiograhic system 失效
标题翻译：无线电广播系统
公开(公告)号：US07549799B2
公开(公告)日：2009-06-23
申请号：US11966579
申请日：2007-12-28
申请人： Bin Ye
发明人： Bin Ye
IPC分类号： H01J31/49
CPC分类号： G03B42/04
摘要： A radiographic system (100) is provided wherein a single X-ray detector can be handled freely using a cable and which can prevent an operator or a patient from being troubled by the cable. The radiographic system (100) comprises a radiographic panel (5) configured to radiograph in two dimensions a radiation exposed to a subject and output radiation image data, a cable (6) for the supply of electric power to the radiographic panel and transfer of the radiation image data, a conveyance unit (8) for conveying the cable in a predetermined direction, a cable length adjusting unit (7) provided in the conveyance unit to adjust the length of the cable, and a movement control unit (72) configured to move the conveyance unit in accordance with a tilting direction of the cable from the cable length adjusting unit to the radiographic panel.
摘要翻译：提供了一种放射线照相系统（100），其中可以使用电缆自由地处理单个X射线检测器，并且可以防止操作者或患者受到电缆的困扰。射线照相系统（100）包括放射线照相面板（5），其配置成二维放射照射暴露于对象的辐射并输出放射线图像数据;电缆（6），用于向射线照相面板供应电力并传送辐射图像数据，用于沿预定方向传送电缆的传送单元（8），设置在传送单元中以调节电缆长度的电缆长度调节单元（7），以及移动控制单元（72）将输送单元按照电缆从电缆长度调节单元的倾斜方向移动到射线照相面板。

84. 发明授权

US07548640B2 Method and apparatus for calibration and correction of gray levels in images 有权
标题翻译：用于校正和校正图像中灰度级的方法和装置
公开(公告)号：US07548640B2
公开(公告)日：2009-06-16
申请号：US12115596
申请日：2008-05-06
申请人： Fanny Jeunehomme , Serge Muller , Razvan Iordache
发明人： Fanny Jeunehomme , Serge Muller , Razvan Iordache
IPC分类号： G06K9/00
CPC分类号： G06T5/50 , A61B6/583 , G06T2207/10116 , G06T2207/30004 , H04N5/32
摘要： A method and apparatus for calibrating an apparatus that acquires a sequence of radiographic images and correcting images of an object under observation. For each image of a sequence acquired by the apparatus and for a given frequency of acquisition of the sequence, the apparatus is calibrated by determining the value of the variation of a mean of gray levels in at least one zone of interest of the current image of at least one calibration device, the variation being determined relative to the mean gray level of the first image of the sequence in each zone of interest. The determination of the variation is reiterated for a series of images sequences acquired using calibration devices resulting in first images of mean gray levels different from one sequence to another. Each image of an image sequence of the object under observation is corrected, comprising zones of observation having different gray levels by subtracting from the current image the variation of one gray level relative to the first image of the object, the subtraction being a function of the gray level considered from each zone of observation.
摘要翻译：一种用于校准获取放射线图像序列并校正被观察物体的图像的装置的方法和装置。对于由装置获取的序列和给定的序列获取频率的每个图像，通过确定当前图像的当前图像的至少一个感兴趣区域中的灰度级的平均值的变化值来校准装置至少一个校准装置，相对于感兴趣区域中序列的第一图像的平均灰度级确定变化。对于使用校准装置获得的一系列图像序列，重复了变化的确定，导致不同于一个序列到另一个序列的平均灰度级的第一图像。通过从当前图像中减去相对于对象的第一图像的一个灰度级的变化，校正观察对象的图像序列的每个图像，包括具有不同灰度级的观察区域，该减法是从每个观察区考虑灰度。

85. 发明授权

US07542542B2 X-ray computed tomography apparatus 有权
标题翻译： X射线计算机断层摄影装置
公开(公告)号：US07542542B2
公开(公告)日：2009-06-02
申请号：US11829504
申请日：2007-07-27
申请人： Qinglei Li
发明人： Qinglei Li
IPC分类号： G01N23/00
CPC分类号： A61B6/035
摘要： A computed tomography apparatus is capable of adjusting rotational balance of gantry rotating part in a wide range with easy control. A computed tomography apparatus 100 comprises a rotating part 130 having an X-ray tube 102, a rotating part 130 having an X-ray detector for detecting X-rays from the X-ray tube, at least two mass bodies (M1, M2) provided at the rotating part, movable in the direction of circumference, a driving part 72 for moving at least two mass bodies, a sensor (S) for measuring the vibration of the rotating part and a controller 137 for controlling the driving part for driving the mass bodies on a basis of the outputs of the sensor.
摘要翻译：计算机断层摄影装置能够容易地控制在宽范围内调节台架旋转部件的旋转平衡。计算机断层摄影装置100包括具有X射线管102的旋转部130，具有用于检测来自X射线管的X射线的X射线检测器的旋转部130，至少两个质量体（M1，M2）设置在沿圆周方向移动的旋转部分，用于移动至少两个质量体的驱动部分72，用于测量旋转部分的振动的传感器（S）和用于控制驱动部分的控制器137 基于传感器的输出的质量体。

86. 发明授权

US07522697B2 X-ray CT apparatus 失效
标题翻译： X射线CT装置
公开(公告)号：US07522697B2
公开(公告)日：2009-04-21
申请号：US11680404
申请日：2007-02-28
申请人： Yusuke Satta , Kazuhiko Sato , Akihiko Nishide , Akira Hagiwara
发明人： Yusuke Satta , Kazuhiko Sato , Akihiko Nishide , Akira Hagiwara
IPC分类号： G21K1/12
CPC分类号： G06T11/006 , A61B6/027 , A61B6/032 , A61B6/0457 , G06T2211/421
摘要： The present invention is to easily associate X-ray projection data and scanning table z-direction coordinate information with each other. Using set parameters of the operations of a scanning gantry and a scanning table, the association of the X-ray projection data and scanning table z-direction coordinate information with each other is executed. Thereafter, image reconstruction is carried out based on the X-ray projection data to obtain a tomographic image. The operation set parameters are stored as part of the X-ray projection data. Alternatively, they are collectively stored even in the case of files separate from the X-ray projection data.
摘要翻译：本发明能够容易地将X射线投影数据和扫描表z方向坐标信息相互关联。使用扫描台架和扫描台的操作的设定参数，执行X射线投影数据和扫描台z方向坐标信息的关联。此后，基于X射线投影数据进行图像重建以获得断层图像。操作设置参数作为X射线投影数据的一部分存储。或者，即使在与X射线投影数据分离的文件的情况下也集体存储。

87. 发明授权

US07522695B2 X-ray CT apparatus 有权
标题翻译： X射线CT装置
公开(公告)号：US07522695B2
公开(公告)日：2009-04-21
申请号：US11489065
申请日：2006-07-19
申请人： Akihiko Nishide , Naoyuki Kawachi
发明人： Akihiko Nishide , Naoyuki Kawachi
IPC分类号： G21N23/083 , H05G1/38
CPC分类号： A61B6/5205 , A61B6/027 , A61B6/032
摘要： A data acquisition device, which has an X-ray detector including a plurality of channel widths at which channels at its central portion are fine and channels at its peripheral portions are coarse or rough, and a plurality of data acquisition ranges including a data acquisition range wide in a channel direction and a data acquisition range narrow in the channel direction, and which is capable of performing switching among the data acquisition ranges for each data acquisition, is used to perform data acquisition on the channels fine at the central portion in the data acquisition range narrow in the channel direction, whereby an X-ray CT apparatus is provided which is capable of performing high-resolution imaging and brings about more satisfactory image quality.
摘要翻译：一种数据采集装置，其具有X射线检测器，该X射线检测器包括多个通道宽度，其中心部分处的通道精细，其周边部分的通道粗糙或粗糙;多个数据采集范围包括数据采集范围在信道方向上宽的数据采集范围和在信道方向上窄的数据采集范围，并且能够在每个数据采集的数据采集范围之间进行切换，用于在数据的中心部分处精细地对信道执行数据采集获取范围在通道方向上窄，由此提供能够执行高分辨率成像并且带来更令人满意的图像质量的X射线CT装置。

88. 发明授权

US07508903B2 Collimator control method and X-ray CT apparatus 失效
标题翻译：准直仪控制方法和X射线CT装置
公开(公告)号：US07508903B2
公开(公告)日：2009-03-24
申请号：US11199429
申请日：2005-08-08
申请人： Akihiko Nishide , Masatake Nukui , Katsumi Azu
发明人： Akihiko Nishide , Masatake Nukui , Katsumi Azu
IPC分类号： G01N23/083 , G21K1/04
CPC分类号： A61B6/06 , A61B6/027 , A61B6/4085 , A61B6/542
摘要： A collimator control method for an X-ray CT apparatus includes changing an aperture of the collimator according to a position of a helical scan on the body axis of the subject in the progress of the helical scan.
摘要翻译：用于X射线CT装置的准直器控制方法包括在螺旋扫描的进行中根据螺旋扫描在被检体的体轴上的位置来改变准直器的孔径。

89. 发明申请

US20090022263A1 X-RAY CT APPARATUS AND METHOD OF GENERATING AN IMAGE 失效
标题翻译： X射线CT装置及其产生图像的方法
公开(公告)号：US20090022263A1
公开(公告)日：2009-01-22
申请号：US12173748
申请日：2008-07-15
申请人： Yasuhiro Imai
发明人： Yasuhiro Imai
IPC分类号： A61B6/00
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4085 , A61B6/482
摘要： The present invention provides an X-ray CT apparatus for imaging an MD image having a better S/N. The X-ray CT apparatus for taking an image with one of two materials within a subject to be examined being fractionated, acquiring two sets of data corresponding to said two types of X-ray having different energy by scanning using said two types of X-ray, generating a first image based on the two sets of data with the pixel values made by weighted addition of two types of CT values corresponding to the two types of X-ray, generating a second image based on the two sets of data, wherein the other one of the two types of material being fractionated, and generating an image by weighted subtraction of the first image and the second image.
摘要翻译：本发明提供一种用于对具有更好S / N的MD图像进行成像的X射线CT装置。用于拍摄被检体内的两种材料中的一种的图像的X射线CT装置被分割，通过使用所述两种X射线扫描来扫描，获得与具有不同能量的所述两种类型的X射线相对应的两组数据，基于具有通过对应于两种类型的X射线的两种类型的CT值的加权相加而进行的像素值的两组数据生成第一图像，基于两组数据生成第二图像，其中两种类型的材料中的另一种被分级，并且通过加权减去第一图像和第二图像来生成图像。

90. 发明申请

US20080304246A1 EMI SHIELDING OF DIGITAL X-RAY DETECTORS WITH NON-METALLIC ENCLOSURES 有权
标题翻译：具有非金属外壳的数字X射线探测器的EMI屏蔽
公开(公告)号：US20080304246A1
公开(公告)日：2008-12-11
申请号：US11759829
申请日：2007-06-07
申请人： Michael John Utschig , Habib Vafi , William Andrew Hennessy , Donald Earl Castleberry
发明人： Michael John Utschig , Habib Vafi , William Andrew Hennessy , Donald Earl Castleberry
IPC分类号： H05K9/00
CPC分类号： A61B6/102 , A61B6/4233
摘要： An imaging system is provided having an EMI shield configured to shield one or more imaging components. The EMI shield includes a first material having a first plurality of conductive elements integrally formed within a first nonconductive material and also includes a generally nonconductive exterior. A method is provided for shielding EMI in an imaging system. The method includes providing an EMI shielding enclosure that includes a first material having a first plurality of conductive elements disposed in a first non-conductive material, and a second material having a second plurality of conductive elements disposed in a second non-conductive material, wherein the first plurality of conductive elements engages the second plurality of conductive elements to form a conduction path. Another method for shielding EMI in an imaging system is provided, that includes providing an EMI shielding enclosure having a first material that has a non-conductive surface and a second EMI shielding material disposed on the non-conductive surface of the first material.
摘要翻译：提供一种成像系统，其具有被配置为屏蔽一个或多个成像部件的EMI屏蔽。 EMI屏蔽包括第一材料，其具有一体地形成在第一非导电材料内的第一多个导电元件，并且还包括大致不导电的外部。提供了一种用于屏蔽成像系统中的EMI的方法。该方法包括提供EMI屏蔽外壳，其包括具有设置在第一非导电材料中的第一多个导电元件的第一材料和具有设置在第二非导电材料中的第二多个导电元件的第二材料，其中第一多个导电元件接合第二多个导电元件以形成导电路径。提供了一种用于在成像系统中屏蔽EMI的方法，其包括提供具有非导电表面的第一材料和设置在第一材料的非导电表面上的第二EMI屏蔽材料的EMI屏蔽外壳。

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