Repeatability of measurement of liver T1, T2 and PDFF by multi-TR, multi-TE single breath-hold 1 H MR spectroscopy.
Gavin Hamilton 1 , Michael S Middleton 1 , William M Haufe 1 , Jonathan C Hooker 1 , Yesenia Covarrubias 1 , Rohit Loomba 2 , and Claude B Sirlin 1
Department of Radiology, UC San Diego, San
Diego, California, United States,
of Medicine, UC San Diego, San Diego, California, United
We developed a rapid multi-TR, multi-TE
MRS sequence for
fat quantification and characterization that acquires 32
single-average spectra in a single breath-hold. We
examined the intra-examination repeatability of the
sequence by repeating it three times in the same
location without patient repositioning. The study showed
that this single-breath-hold, multi-TR, multi-TE
sequence can measure liver water T1 and T2, fat T2, and
proton density fat fraction with high repeatability.
Repeatability for fat T1 was modest.
This abstract and the presentation materials are available to members only;
a login is required.