TRADITIONAL POSTER - ismrm

Poster Sessions
1287. Fast Quantitative Measurement of T1 in Cardiac Delay Enhanced Studies
Matteo Milanesi 1 , Luca Marinelli 2 , Christopher J. Hardy 2 , Vincenzo Positano 1 , Piergiorgio Masci 1 , Andrea
Barison 1 , Maria F. Santarelli 3 , Luigi Landini 4 , Massimo Lombardi 1 , Thomas K. Foo 2
1 "G. Monasterio" Foundation, Pisa, Italy; 2 Global Research Center, General Electric, Niskayuna, NY, United States; 3 Institute of
Clinical Physiology, National Research Council, Pisa, Italy; 4 Department of Information Engineering, University of Pisa, Pisa, Italy
In this work a Cine Inversion Recovery pulse sequence is presented to quantify T1 values in myocardial delay enhancement studies. FastSPGR with low flip
angle is used to sample the exponential spin relaxation during the first heart beat following an adiabatic inversion pulse. The subsequent heart beat is left to
allow full T1 recovery. Four patients with suspicion of heart diseases were enrolled in the study, and acquisition carried out at 1.5T scanner. Cine-IR showed
T1 values higher for viable myocardium than for non-viable. These and blood pool estimated T1, were found to be close to those reported in literatures.
1288. Comparison of Gd-BOPTA and Gd-DPTA Late Gadolinium Enhancement for Visualizing Scar, Using
Valve Enhancement as a Surrogate for Scar Adjacent to Blood
Dana C. Peters 1 , Reza Nezafat 1 , Peng Hu 1 , Yuchi Han 1 , Warren J. Manning 1,2
1 Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, MA, United States; 2 Radiology, Beth Israel Deaconess
Medical Center
The CNR (blood-fibrosis) of Gd-BOPTA was compared to Gd-DTPA, using a high resolution late gadolinium enhancement technique with 0.2mmol/kg
injection and a 15-40 minute delay. Eighteen patients were imaged with Gd-BOPTA, 8 of which were imaged with Gd-DTPA at another time point. The
valves were studied as a surrogate for scar which adjacent to blood. The valve enhancement was greater using Gd-DTPA (p