Title :
Spatial resolution in elasticity imaging with ultrasound
Author :
Zhu, Yanning ; Hall, Timothy J. ; Cook, Larry T.
Author_Institution :
Dept. of Radiol., Kansas Univ. Med. Center, Kansas City, KS, USA
Abstract :
We are exploring the resolution limits of ultrasonic strain imaging techniques by building tissue-mimicking gelatin resolution phantoms with various targets imbedded. Through acquiring scan data with applied compression, we compute the strain and study the visibility and separability of targets with different sizes and separations. Our preliminary results have shown that targets with 4.2 mm in diameter separated by 1.6 mm are easily seen
Keywords :
biological tissues; biomechanics; biomedical ultrasonics; image resolution; strain measurement; 2D PSF; 4.2 mm; CNR; FEA; Rayleigh criterion; applied compression; elasticity imaging; elastography; embedded targets; resolution limits; spatial resolution; strain field; target separability; target visibility; tissue elastic properties; tissue-mimicking gelatin resolution phantoms; ultrasonic strain imaging techniques; Autocorrelation; Biomedical imaging; Capacitive sensors; Elasticity; Image resolution; Imaging phantoms; Signal resolution; Spatial resolution; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921681
