Figure 1

a) shows the DeSPAIR module integrated into a segmented IR gradient echo sequence and the resulting T1 recovery curves. NSIR and SPAIR pulses are timed to null myocardium and fat at the k-space center. Typical parameters at 1.5T (MAGNETOM Avanto, Siemens Healthcare) and 3T (Verio) were, respectively: TI adjusted to null normal myocardium (300-400 ms), trigger pulse 2, fov 360 x 270 mm, matrix 256 x 125, segments 21, flip angle 25° (15°), receiver bandwidth 130 (399) Hz/pixel, TE 3.85 (1.66) ms, TR 8.9 (4.4) ms, slice thickness 7 (6) mm. 1b) shows delayed enhancement images at 3T in an ARVD patient without fat suppression, FS, and DeSPAIR. Fat suppression was poor by FS, but excellent by DeSPAIR. Note the fatty infiltration of the RV freewall (3 white arrows), pericardial effusion (white arrow) only seen in the DeSPAIR image, and septal fibrosis (black arrow).