Abstract
Cardiology, Hofstra North Shore-LIJ School of Medicine, Manhasset, NY, USA Full list of author information is available at the end of the article Figure 1 A1. A DIR TSE image demonstrates fat in the atrioventricular groove as well as a non-fat-based mass at the mitral annulus. A2. The corresponding T1 map shows a mass with a relatively low T1 value (417 ms) consistent with mitral annular calcification. B1. A DIR TSE SPAIR image demonstrates a catheter-related thrombus in the right atrium. B2. The T1 map shows a mass with an intermediate T1 time (1114 ms). C1. An SSFP image in a patient with metastatic melanoma demonstrates a region of bright signal intensity in the anterior myocardial segment. C2. The relatively low T1 values (~700 ms) of the melanin-rich metastatic foci on the corresponding T1 map facilitate identification of myocardium studded with tumor. Saba et al. Journal of Cardiovascular Magnetic Resonance 2015, 17(Suppl 1):Q32 http://www.jcmr-online.com/content/17/S1/Q32
Highlights
We hypothesize that T1 mapping contributes to the characterization of cardiac masses based on the spectrum of T1 relaxation times in tissue consisting of fat, calcium, melanin, blood and simple fluid
Given the wellestablished T1 lowering properties of melanin, T1mapping may assist in the evaluation of cardiac masses in patients with melanoma
We analyzed all CMR studies between January 2011 and April 2014 referred to our center for mass evaluation in patients with known metastatic melanoma, known or suspected thrombus, myxoma, lipoma, simple cyst and mitral annular calcification who underwent a modified look locker inversion recovery (MOLLI) T1 mapping sequence at 1.5T
Summary
We hypothesize that T1 mapping contributes to the characterization of cardiac masses based on the spectrum of T1 relaxation times in tissue consisting of fat, calcium, melanin, blood and simple fluid. Given the wellestablished T1 lowering properties of melanin, T1mapping may assist in the evaluation of cardiac masses in patients with melanoma.
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