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. Author manuscript; available in PMC: 2008 Sep 1.
Published in final edited form as: Methods. 2007 Sep;43(1):35–45. doi: 10.1016/j.ymeth.2007.03.012

Figure 8.

Figure 8

A simple timing diagram demonstrating an inversion recovery (IR) spoiled gradient echo sequence for delayed contrast-enhanced imaging. A non-selective inversion pulse (black box) is applied at a time TI prior to the image acquisition (gray box) in mid diastole. A long TR between 2-3 times the T1of normal myocardium should be chosen to allow sufficient recovery of the inverted magnetization. The trigger delay Td (time after the R-wave trigger at which image acquisition occurs) can be determined by visually examining the cine MR images to find an appropriate time in the cardiac cycle with minimal motion. Because a non-selective inversion pulse is used, a multi-slice image acquisition can be used to maximize imaging efficiency and allow fuller coverage of the heart.