Multile size biological tissue displacement evaluating method
Title：
Multile size biological tissue displacement evaluating method
Application Number：
 200410056906
Application Date：
 2004/08/20
Announcement Date：
 2005/03/02
Pub. Date：
 2007/05/02
Publication Number：
 1586408
Announcement Number：
 1313054
Grant Date：
 2007-5-2
Granted Pub. Date：
 2007-5-2
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 A61B 8/08
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Bai Jing, Luo Jianwen
Key Words：
 Multile size, biological tissue displacement, evaluating method
Abstract：
 The present invention belongs to the field of supersonic elastic imaging technology. The multiple size biological tissue displacement estimating method includes: taking the data d1 of one small section T1 in the first scanning line in the 2D RF signal before tissue compression, finding the cross correlation function of the data d1 and the scanning data after tissue compression, dividing the data d1 into N sections of data in size T2 and finding the cross correlation function of the data and the scanning line data, further dividing each section of data and finding the cross correlation function and performing weighting averaging to obtain the displacement t1; and repeating the steps for d2, d3, ..., dl to obtain the tissue displacement evaluation corresponding to the first scanning line; and similarly obtaining the tissue displacement estimation corresponding to the other scanning lines. The present invention has raised tissue displacement estimation precision.
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