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    • 29. 发明授权
    • Method of analyzing motion of imaging target by means of tagged MR images, and MRI device
    • 通过标记的MR图像和MRI设备分析成像目标的运动的方法
    • US08538104B2
    • 2013-09-17
    • US13266244
    • 2010-01-08
    • Tetsuya MatsudaAkira Amano
    • Tetsuya MatsudaAkira Amano
    • G06K9/00A61B5/05
    • A61B5/055A61B5/1107G01R33/5613G01R33/56325G01R33/56333G06T7/246G06T2207/10088G06T2207/30048
    • A method for analyzing motion of an imaging target by means of tagged MR images includes performing, on the same motion of an imaging target, NL (NL: positive integer not less than 2) times of cine imaging by means of different tag patterns, to obtain NL pieces of time-series tagged MR images taken for a plurality of time phases in the motion of the imaging target, arranging NL pieces of pixel values of the same pixel in the NL pieces of tagged MR images at each time phase into a pixel value sequence having a length NL for the corresponding pixel, and analyzing the motion of the imaging target in the time-series tagged MR images by detecting pixels whose pixel value sequences constitute the same code sequence in different time phases. Each of the tag patterns is formed such that the pixel value sequence constitutes a predetermined code sequence.
    • 用于通过标记的MR图像分析成像目标的运动的方法包括在成像目标的相同运动上,通过不同的标签图案来执行电影成像的NL(NL:不小于2的正整数)次,到 在成像目标的运动中获得针对多个时间相所拍摄的NL个时间序列标记的MR图像,将每个时间相位的NL个标记的MR图像中的相同像素的NL个像素值排列成像素 值序列具有对应像素的长度NL,并且通过检测像素值序列在不同时间段中构成相同代码序列的像素来分析时间序列标记的MR图像中的成像目标的运动。 每个标签图案被形成为使得像素值序列构成预定的代码序列。