Abstract #2607
In-vivo right-ventricular myocardial T1 mapping at 3.0 Tesla
Nadja M Mener 1 , Lothar R Schad 1 , and Frank G Zllner 1
1
Computer Assisted Clinical Medicine, Medical
Faculty Mannheim, Heidelberg University, Mannheim,
Germany
This abstract provides information on T1 mapping in the
right ventricle (RV) for MR scientists and cardiac
radiologists. Certain diseases such as arrhythmogenic
right ventricular dysplasia (ARVD) affect predominantly
the RV myocardium, however, its T1 quantification has
been neglected so far, because the RV myocardium has a
very thin and variable structure. Our goal was to show
its feasibility at high-resolution. 6 healthy volunteers
were investigated with a 3 T Siemens Skyra with a 5(3)3
MOLLI sequence and b-SSFP readout. Images were
prospectively ECG triggered at systole instead of
diastole, which lead to a larger RV ROI size. A spatial
resolution of 1.17x1.17x5 mm could be achieved. T1
times in the RV were found to be 1,35420 ms, LV T1
times were 1,22337 ms. The significantly higher T1 time
of the RV is likely to be explained by the higher
collagen content of the RV. In conclusion, RV T1 mapping
with the MOLLI sequence provides robust, high-resolution
results at 3 T in short acquisition times and could
therefore be included in clinical routine in the near
future.
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