Figure 1:

Multiplanar reconstruction RCA 3D free-breathing GRE MR images (7.7/2.2; flip angle, 30°) acquired before (PRE) and after administration of (top) 2.5 or (bottom) 5 mg of ISDN in two healthy volunteers. Time after ISDN administration appears on upper left of images. Increased vessel diameter and RCA signal enhancement were observed with both doses, especially distally (arrowheads). * = image quality score, # = SNR, ∼ = vessel sharpness score.