Simulation studies of ultrasonic backscattering and B-mode images of liver using acoustic microscopy data.
Data obtained from a scanning laser acoustic microscope (SLAM) were used to examine several aspects of ultrasonic backscattering from the liver. Phase interferograms from normal and abnormal human-liver specimens were digitized, and a series of algorithms was used to compute images of propagation velocity within the specimens. The propagation velocity images were then employed to simulate A- and B-mode results. These initial simulations were used to investigate how ultrasonic echo signals are related to tissue microstructure. Among the topics examined were B-mode speckling, frequency and beamwidth effects, and angulation dependencies.
Lizzi
F L
FL
Riverside Res. Inst., New York, NY.
Rorke
M C
MC
King
D L
DL
Feleppa
E J
EJ
Kalisz
A
A
Sokil-Melgar
J B
JB
Nowakowski
J
J