Title :
Investigating elastic properties of soft biological tissues
Author :
Brusseau, Elisabeth ; Fromageau, Jérémie ; Rognin, Nicolas G. ; Delachartre, Philippe ; Vray, Didier
Author_Institution :
CNRS Res. Unit, CREATIS, Lyon, France
Abstract :
We have developed a signal processing technique to map the axial strain distribution occurring in a medium exposed to a mechanical compression with RF ultrasound signals. This method is based on an adaptive and iterative estimation of local scaling factors, via the exploitation of phase information.
Keywords :
Young´s modulus; acoustic signal processing; adaptive estimation; biological tissues; biomechanics; biomedical ultrasonics; elasticity; iterative methods; medical signal processing; RF ultrasound signal compression; adaptive estimation; atherosclerosis; axial strain imaging; cumulative window displacement; elastic properties; elastography; iterative estimation; local scaling factors; phase information; postcompression signal segment; signal processing technique; soft biological tissues; tissue motion; two-layer intravascular cryogel phantom; Adaptive signal processing; Biological tissues; Biomedical signal processing; Capacitive sensors; Iterative methods; Phase estimation; RF signals; Radio frequency; Signal processing; Ultrasonic imaging;
Journal_Title :
Engineering in Medicine and Biology Magazine, IEEE
DOI :
10.1109/MEMB.2002.1032645
