RSNA/QIBA: Shear wave speed as a biomarker for liver fibrosis staging

An interlaboratory study of shear wave speed (SWS) estimation was performed. Commercial shear wave elastography systems from Fibroscan, Philips, Siemens and Supersonic Imagine, as well as several custom laboratory systems, were involved. Fifteen sites were included in the study. CIRS manufactured an...

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Bibliographic Details
Main Authors: Hall, Timothy J., Milkowski, Andy, Garra, Brian, Carson, Paul, Palmeri, Mark, Nightingale, Kathy, Lynch, Ted, Alturki, Abdullah, Andre, Michael, Audiere, Stephane, Bamber, Jeffery, Barr, Richard, Bercoff, Jeremy, Bercoff, Jessica, Bernal, Miguel, Brum, Javier, Huan Wee Chan, Shigao Chen, Cohen-Bacrie, Claude, Couade, Mathieu, Daniels, Allison, DeWall, Ryan, Dillman, Jonathan, Ehman, Richard, Franchi-Abella, S. F., Fromageau, Jeremie, Gennisson, Jean-Luc, Henry, Jean Pierre, Ivancevich, Nikolas, Kalin, Jan, Kohn, Sarah, Kugel, Jennifer, Ken Lee, Liu, N. I., Loupas, Thanasis, Mazernik, Joan, McAleavey, Stephen, Miette, Veronique, Metz, Stephen, Morel, B. M., Nelson, Thomas, Nordberg, Eric, Oudry, Jennifer, Padwal, Monali, Rouze, Ned, Samir, Anthony, Sandrin, Laurent, Schaccitti, Janet, Schmitt, Cedric, Shamdasani, Vijay, Pehngfei Song, Switalski, Pamela, Wang, Michael, Wear, Keith, Hua Xie, Heng Zhao
Format: Conference Proceeding
Language:English
Subjects:
Current measurement
Educational institutions
Liver
Materials
Phantoms
Ultrasonic imaging
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Summary:An interlaboratory study of shear wave speed (SWS) estimation was performed. Commercial shear wave elastography systems from Fibroscan, Philips, Siemens and Supersonic Imagine, as well as several custom laboratory systems, were involved. Fifteen sites were included in the study. CIRS manufactured and donated 11 pairs of custom phantoms designed for the purposes of this investigation. Dynamic mechanical tests of equivalent phantom materials were also performed. The results of this study demonstrate that there is very good agreement among SWS estimation systems, but there are several sources of bias and variance that can be addressed to improve consistency of measurement results.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2013.0103