Portal de Periódicos da CAPES

A chemical shift selective inversion recovery sequence for fat-suppressed MRI: Theory and experimental validation

1993; Elsevier BV; Volume: 11; Issue: 3 Linguagem: Inglês

10.1016/0730-725x(93)90067-n

1873-5894

Eleni Kaldoudi, Steven Williams, Gareth J. Barker, Paul S. Tofts,

NMR spectroscopy and applications

Fat-suppression techniques are used extensively in routine proton nuclear magnetic resonance imaging to produce images free from chemical shift artifacts and dynamic range problems. A hybrid fat-suppression sequence is studied which combines the principle of short time inversion recovery with chemical shift selective imaging. The aim of this study is to provide a theoretical understanding of the role of the sequence parameters, as well as to compare this hybrid sequence with its most closely related conventional fat-suppression techniques, namely selective presaturation and short time inversion recovery (STIR) imaging. The hybrid technique is shown to be robust in normal use, and more tolerant than the conventional methods to mis-settings of parameters such as inversion time, as well as tip angle and frequency bandwidth of the fat selective pulse.