Title :
Shear wave imaging at high frequencies: A feasibility study in tissue mimicking gelatin phantoms
Author :
Maeva, A. ; Lee, Minhung ; Foster, Scott
Author_Institution :
Sunnybrook Res. Inst., Toronto, ON, Canada
Abstract :
Cancer research greatly benefits from data provided by tissue biomarkers. One such biomarker can be considered the biomechanical properties of tissue. This data can be acquired using ultrasound elastography, particularly shear wave imaging (SWI). Many current clinical systems utilize a low frequency (5-10 MHz) hampering the spatial resolution. A system and corresponding gelatin phantoms have been designed with a 25 MHz transducer for acquisition. There was good agreement with current “gold standard” techniques and a linear dependency of gelatin concentration to the shear wave speed was observed.
Keywords :
biological tissues; biomechanics; biomedical ultrasonics; biomimetics; cancer; elastic waves; phantoms; ultrasonic transducers; cancer research; clinical system; frequency 25 MHz; frequency 5 MHz to 10 MHz; gelatin concentration; gold standard technique; high frequency imaging; linear dependency; low frequency imaging; shear wave imaging; shear wave speed; spatial resolution; tissue biomarker; tissue biomechanical property; tissue mimicking gelatin phantom; transducer; ultrasound elastography; Acoustics; Biological tissues; Medical treatment; Phantoms; Silicon compounds; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0639
