Figure 1b. Long-axis cine MR images obtained with a fast GRE sequence (repetition time msec/echo time msec = 8.1/4.5, angle of 20°) (a, b) and an SSFP sequence (3.7/1.5, angle of 45°) (c, d) in a 68-year-old man with coronary artery disease. The heterogeneous blood-pool signal intensity seen in the GRE images, which was caused by slow blood flow, is not present in the SSFP images.