发明名称 |
Method for estimating tissue velocity vectors and tissue deformation from ultrasonic diagnostic imaging data |
摘要 |
A method for estimating tissue velocity vectors and oriented strain from ultrasonic diagnostic imaging data, comprises the following steps: Acquiring ultrasound imaging data from an object by transmitting ultrasound beams against the said object and receiving the corresponding reflected beams by the said object; Defining at least one or a certain number of reference points in an ultrasonic image field corresponding to the ultrasonic image data obtained from evaluation of the ultrasonic reflected beams; Determining the direction of motion and the velocity vector of the said reference points from the ultrasonic image data; According to the present invention the ultrasound imaging data consist in a sequence of at least two image frames, said images being two dimensional images or three dimensional data; The imaging data are B-mode grey-scale echographic images; The velocity of motion of each reference point between two successive B-mode image frames are determined by applying a so called particle image velocimetry technique abbreviated as PIV. <??>Any component of the strain is then obtained from time integration of strain-rate that is evaluated from the gradient of velocity estimated from the velocity data in two or more points. |
申请公布号 |
EP1520517(B1) |
申请公布日期 |
2005.12.14 |
申请号 |
EP20030425638 |
申请日期 |
2003.09.30 |
申请人 |
ESAOTE S.P.A.;AMID SRL |
发明人 |
PEDRIZZETTI, GIANNI;TONTI, GIOVANNI |
分类号 |
A61B8/08;G01S15/58;G06T7/20 |
主分类号 |
A61B8/08 |
代理机构 |
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地址 |
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