The purpose of this study was to compare 5-minute delayed transitional phase imaging using a 30 flip angle ( hereafter , 5 min-FA30 ) and 20-minute hepatocyte phase imaging using a 10 flip angle ( hereafter , 20 min-FA10 ) in gadoxetic acid-enhanced MRI for focal hepatic lesion detection and lesion-to-liver contrast-to-noise ratio ( CNR ) , and to determine whether 5 min-FA30 could replace 20 min-FA10 with a 15-minute time saving .