BOLUS-CHASE MR DIGITAL SUBTRACTION ANGIOGRAPHY IN THE LOWER-EXTREMITY

A bolus-chase magnetic resonance (MR) angiographic technique performed with a prototypic stepping table and coil holder and a 15-20-mL injec tion df contrast material was developed to depict the entire lower ext remity. Image acquisition Was synchronized with passage of the contras t medium bolus through the lower extremity. Ten subjects underwent the examination, which was performed in less than 1 minute. All major art eries were well demonstrated in all cases.