Abstract： |
The present invention belongs to the field of supersonic elastic imaging technology. The variable sized biological tissue displacement estimating method includes: for the k-th scanning line data, adopting the size T(k); if M is odd number and T(k) meets T(1)=T(M)=Tmax, and T[(M+1)/2]=Tmin, when k is between 1 and (M+1)/2, T(k) will decrease with increased k, and when k is between (M+1)/2 and M, T(k) will increase with increased k; if M is even number and T(k) meets T(1)=T(M)=Tmax, and T(M/2)=T(M/2+1)=Tmin, when k is between 1 and M/2, T(k) will decrease with increased k, and when k is between M/2+1 and M, T(k) will increase with increased k; where Tmax and Tmin is the maximum size and minimun size of the variable size. The present invention has raised longitudinal resolution while ensuring the enough tissue displacement estimation precision and has decreased influence of transverse tissue displacement on longitudinal tissue displacement estimation. |
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