Improved Fat Water Separation with Water Selective Inversion Pulse for Inversion Recovery Imaging in Cardiac MRI

摘要: Purpose: To develop an improved chemical shift-based water-fat separation sequence using a water-selective inversion pulse for recovery 3D contrast-enhanced cardiac magnetic resonance imaging (MRI). Materials and Methods: In sequences the fat signal is substantially reduced due to application of nonselective pulse. Therefore, simultaneous visualization water, fat, myocardial enhancement in recovery-based such as late gadolinium imaging, two separate scans are used. To overcome this, replaced with Imaging was performed phantoms, nine healthy subjects, patients suspected arrhythmogenic right ventricular cardiomyopathy plus one patient tumor/mass imaging. In patients, images conventional turbo-spin echo (TSE) without saturation were acquired prior contrast injection assessment. Subjective image scores (1 = poor, 4 excellent) used assessment. Results: Phantom experiments showed signal-to-noise ratio (SNR) increase between 1.7 5.9 times 150 300 msec, respectively. The retains MR, allowing separated subjects score 3.7 ± 0.6. Patient proposed scored higher when compared TSE (3.5 0.7 vs. 2.2 0.5, P < 0.05). Conclusion: The water fat. J. Magn. Reson. 2013;37:484–490. © 2012 Wiley Periodicals, Inc.