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    • 2. 发明申请
    • METHOD FOR SCALING SCATTERED RAY INTENSITY DISTRIBUTION IN MULTI BULBS X-RAY CT AND MULTI BULBS X-RAY CT APPARATUS
    • 用于扩大多发性X射线CT和多发性X射线CT装置中散射强度分布的方法
    • US20090092221A1
    • 2009-04-09
    • US12243218
    • 2008-10-01
    • Takahiro MANABENaruomi Akino
    • Takahiro MANABENaruomi Akino
    • H05G1/60H05G1/64
    • A61B6/032G06T11/005
    • A method for scaling a scattered ray intensity distribution in a multi bulbs X-ray CT apparatus configured to irradiate a subject with X-rays from a plurality of X-ray generation sections, respectively and configure a cross-sectional image of the subject by detecting the X-rays passing through the subject, the method includes: a first difference being achieved, the first difference being the difference between a real data of X-ray intensity achieved by passing of X-rays through the subject, the X-rays being radiated from the plurality of the X-ray generation sections, respectively and an opposed data of X-ray intensity achieved by passing of these X-rays through the subject at the same position in an opposite direction, a second difference between scattered ray intensity included in the real data and scattered ray intensity included in the opposed data being achieved, the being achieved including: estimating primary scattered ray included in the real data of the X-ray intensity achieved by passing of the X-rays through the subject, the X-rays being radiated from the plurality of the X-ray generation sections, respectively; and estimating primary scattered ray included in the opposed data of the X-ray intensity achieved by passing of the X-rays through the subject at the same position in an opposite direction, respectively, and performing scaling the primary estimated scattered ray intensity distribution on the basis of a ratio between the first difference and the second difference.
    • 一种用于缩放多灯泡X射线CT装置中的散射光线强度分布的方法,其被配置为分别从多个X射线产生部分向X射线照射被摄体,并通过检测来配置被摄体的横截面图像 通过对象的X射线,该方法包括:实现第一差异,第一个差异是通过穿过被摄体的X射线实现的X射线强度的实际数据之间的差异,X射线为 分别从多个X射线产生部发射的X射线强度相对的数据和通过使相对方向的相同位置上的这些X射线通过被检体而实现的X射线强度相对的数据, 在所实现的相对数据中包括的真实数据和散射光线强度中,实现包括:估计包括在X射线强度的实际数据中的主要散射光线实现 通过使X射线通过被检体,分别从多个X射线产生部照射X射线; 并且估计包括在通过在相反方向上在相同位置上通过对象的X射线实现的X射线强度的相对数据中包括的主要散射光线,并且对第一估计散射光线强度分布进行缩放 第一差异和第二差异之间的比率的基础。
    • 4. 发明申请
    • MEDICAL IMAGE PROCESSING APPARATUS, X-RAY COMPUTED TOMOGRAPHY APPARATUS, AND MEDICAL IMAGE PROCESSING METHOD
    • 医学图像处理装置,X射线计算机图像设备和医学图像处理方法
    • US20120093279A1
    • 2012-04-19
    • US13329754
    • 2011-12-19
    • Naruomi AKINO
    • Naruomi AKINO
    • A61B6/03
    • A61B6/032A61B6/405A61B6/482A61B6/5205A61B6/5217
    • According to one embodiment, a medical image processing apparatus includes an image storage unit, an estimation unit, a combination ratio determination unit, and a combined image generation unit. The estimation unit is configured to estimate an abundance ratio of one of a first and second substances to the other for each pixel based on attenuation coefficients of the first substance which correspond to a first and second energies, the attenuation coefficients of a second substance which correspond to the first and second energies, and pixel values of a first and second medical images. The combination ratio determination unit is configured to determine combination ratios of pixel values between the first and second medical images for each pixel based on the abundance ratios of the first and second substances and the attenuation coefficients of the first and second substances which are associated with a target energy.
    • 根据一个实施例,医学图像处理设备包括图像存储单元,估计单元,组合比率确定单元和组合图像生成单元。 估计单元被配置为基于对应于第一和第二能量的第一物质的衰减系数来估计每个像素的第一和第二物质中的一个物质与另一物质之间的丰度比,对应于第一物质的衰减系数 第一和第二能量以及第一和第二医学图像的像素值。 组合比确定单元被配置为基于第一和第二物质的丰度比和与第一和第二物质的相关联的第一和第二物质的衰减系数来确定每个像素的第一和第二医学图像之间的像素值的组合比率 目标能量。
    • 5. 发明授权
    • Image processing apparatus and X-ray computer tomography apparatus
    • 图像处理装置和X射线计算机断层摄影装置
    • US08009795B2
    • 2011-08-30
    • US12560655
    • 2009-09-16
    • Kazumasa ArakitaNaruomi Akino
    • Kazumasa ArakitaNaruomi Akino
    • A61B6/00
    • G06T7/20G06T7/0012G06T2207/10081G06T2207/20101G06T2207/30048G06T2207/30061
    • An image processing apparatus includes a storage unit which stores the data of a plurality of images including an examination target organ of an object, a reference point determining unit which determines, from each of the images, a reference point which is located in or near a region of the examination target organ and undergoes a relatively small displacement accompanying respiratory motion or, heartbeat, and a moving amount calculation unit which determines the position of each of a plurality of points of interest included in the region of the examination target organ relative to the reference point for each of the images, and calculates, based on the determined positions, moving amounts that corresponding points of interest between the images move accompanying the respiratory motion or the heartbeat.
    • 图像处理装置包括:存储单元,存储包括对象的检查对象器官的多个图像的数据;参考点确定单元,其从每个图像确定位于或接近对象的参考点 检查目标器官的区域,并且伴随呼吸运动或心跳的相对较小的位移,以及移动量计算单元,其确定包括在检查对象器官的区域中的多个兴趣点中的每一个的位置相对于 并且基于所确定的位置,计算图像之间的相应兴趣点伴随呼吸运动或心跳移动的移动量。
    • 10. 发明授权
    • X-ray CT scanner and data processing method of X-ray CT scanner
    • X射线CT扫描仪和X射线CT扫描仪的数据处理方法
    • US07848480B2
    • 2010-12-07
    • US11776866
    • 2007-07-12
    • Satoru NakanishiNaruomi AkinoYasuo Saito
    • Satoru NakanishiNaruomi AkinoYasuo Saito
    • A61B6/03
    • A61B6/4014A61B6/032A61B6/541
    • An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first X-ray tube and the second X-ray tube, collection data processing means for executing weighting processing to each of pieces of collection data including first collection data obtained by the first X-ray detector and second collection data obtained by the second X-ray detector to generate image data combined to be smooth in a direction corresponding to a channel direction of detection elements provided in the X-ray detectors, and image generating section for performing processing including image reconstruction processing with respect to pieces of collection data weighted by the collection data processing section to generate image data.
    • X射线CT扫描器包括X射线管,X射线管包括第一X射线管和具有彼此不同角度的扇形角的第二X射线管,X射线检测器包括第一X射线检测器和第二X射线 检测器,其分别布置为面对第一X射线管和第二X射线管,收集数据处理装置,用于对包括由第一X射线检测器获得的第一收集数据和第二X射线检测器的第二收集数据进行加权处理 通过第二X射线检测器获得的收集数据,以生成在与设置在X射线检测器中的检测元件的通道方向对应的方向上平滑化的图像数据;以及图像生成部,执行包括图像重建处理的处理 由收集数据处理部分加权的收集数据片段以生成图像数据。