Determination of Optimal Gadolinium Concentration Using SSFP for Catheter-directed Contrast-enhanced Coronary MR Angiography1

For catheter-directed contrast-enhanced coronary MRA, the ideal gadolinium concentration should maximize relative SNR and limit the total gadolinium dose. Using these criteria, of those concentrations we tested in the swine model, 8% injected gadolinium was superior for catheter-directed SSFP coronary MRA.