Figure 7

Cardiac images acquired in a normal human subject in horizonal long-axis view using (a) conventional slice-selective RF pulse with TR = 3.1 ms, (b) 1-(180°)-2-(180°)-1 with TR = 8.9 ms, (c) 1-(180°)-1 with TR = 6.5 ms, (d) 1-(90°)-1 and TR = 4.0 ms. (e) 1-(90°)-1 and TR = 5.0 ms. (f) 1-(90°)-1 and TR = 5.6 ms. These pulses and TR values correspond to those demonstrated in the phantom images shown in Figure 4. A magnified region is shown in the lower right corner of each image to illustrate the signal in epicardial fat surrounding the apex of the left ventricle. Fat suppression characteristics are seen to be independent of sequence TR. All figures are displayed with the same window and level settings.