Abstract #3165

A stability study of breath-hold and free-breathing liver fat and R2* quantification at 1.5T and 3T

Chang Gao^1,2,3, Peng Hu^1,2, Brian Dale⁴, Marcel D. Nickel⁵, Stephan A.R. Kannengiesser⁵, Berthold Kiefer⁵, Vibhas Deshpande⁶, and Xiaodong Zhong³

¹Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, CA, United States, ²Physics and Biology in Medicine Inter-departmental Graduate Program, David Geffen School of Medicine, University of California, Los Angeles, CA, United States, ³MR R&D Collaborations, Siemens Healthcare, Los Angeles, CA, United States, ⁴MR Training, Siemens Healthcare, Cary, NC, United States, ⁵MR Application Development, Siemens Healthcare GmbH, Erlangen, Germany, ⁶MR R&D Collaborations, Siemens Healthcare, Austin, TX, United States

Accurate quantification of proton-density fat fraction (PDFF) and R2* requires appropriate compensation of various confounding factors. A stability study was performed to investigate the impacts of different protocols and imaging parameters using both breath-hold Cartesian and free breathing radial sequences on a standardized phantom and a group of 5 same normal subjects at both 1.5T and 3T. This study revealed that flip angle, TE mode and coil usage were important protocol parameters to investigate further in larger patient population.

This abstract and the presentation materials are available to 2020 meeting attendees and eLibrary customers only; a login is required.

Join Here