Fast-SENC MRI enabled real-time imaging of regional myocardial function in a single heartbeat, yielding results comparable to conventional SENC.
Does fast-SENC provide comparable imaging of regional myocardial function compared to conventional SENC in human subjects and infarcted dogs?
Fast-SENC enables real-time imaging of regional myocardial function in a single heartbeat, providing results comparable to conventional SENC, which may be useful during stress or arrhythmia.
A technique for fast imaging of regional myocardial function using a spiral acquisition in combination with strain-encoded (SENC) magnetic resonance imaging (MRI) is presented in this paper. This technique, which is termed fast-SENC, enables scan durations as short as a single heartbeat. A reduced field of view (FOV) without foldover artifacts was achieved by localized SENC, which selectively excited the region around the heart. The two images required for SENC imaging (low- and high-tuning) were acquired in an interleaved fashion throughout the cardiac cycle to further shorten the scan time. Regional circumferential contraction and longitudinal shortening of both the left ventricle (LV) and right ventricle (RV) were examined in long- and short-axis views, respectively. The in vivo results obtained from five human subjects and five infarcted dogs are presented. The results of the fast-SENC technique in a single heartbeat acquisition were comparable to those obtained by conventional SENC in a long acquisition time. Therefore, fast-SENC may prove useful for imaging during stress or arrhythmia.
Li et al. (Mon,) conducted a other in Myocardial function assessment (n=10). fast-SENC MRI vs. conventional SENC was evaluated on Regional circumferential contraction and longitudinal shortening. Fast-SENC MRI enabled real-time imaging of regional myocardial function in a single heartbeat, yielding results comparable to conventional SENC.
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