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Abstract #1793

The Cardiac Triggering Time Delay Is Decisive for the Spectrum Quality in Cardiac 1H MR Spectroscopy

sa Carlsson1, 2, Maja Sohlin2, Maria Ljungberg1, 2, Eva Forssell-Aronsson1, 2

1Department of Medical physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden; 2Department of Radiation Physics, University of Gothenburg, Gothenburg, Sweden

Localized cardiac MR-spectroscopy (CMRS) is an increasingly popular tool for evaluation of the heart metabolism. To receive good spectrum quality in the human myocardium the scanning needs to be cardiac triggered. In this work, the spectrum quality related to the choice of cardiac triggering time delay was investigated by comparing several spectrum quality parameters for different cardiac triggering time delays. It was shown that cardiac triggering in systole resulted in better spectrum compared to diastole. Each subject had an individual optimal cardiac triggering delay time that could be found approximately at 25 % of a full cardiac cycle.

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