Title :
Resolution in elastography
Author :
Righetti, R. ; Srinivasan, S. ; Ophir, J. ; Ktonas, P.
Author_Institution :
Dept. of Radiol., Univ. of Texas Med. Sch., Houston, TX, USA
Abstract :
The limits of the spatial resolution in elastography were investigated using a controlled simulation study. The results show that the axial resolution in elastography is limited by the bandwidth of the ultrasound system used to acquire the data and the lateral resolution is determined by the beamwidth of the ultrasound transducer.
Keywords :
biomechanics; biomedical ultrasonics; elasticity; finite element analysis; image resolution; axial resolution; bandwidth; beamwidth; contrast-to-noise ratio; cross-correlation; dynamic range; medical diagnostic imaging; medical imaging modality performance; sensitivity; signal-to-noise ratio; spatial resolution limits; tissue mechanical properties; ultrasound system; Bandwidth; Capacitive sensors; Digital signal processing; Image resolution; Imaging phantoms; Signal resolution; Spatial resolution; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106226
