Abstract #3131

Spiral SPIRIT Tissue Phase Mapping enables the acquisition of myocardial motion with high temporal and spatial resolution during breath-hold

Marius Menza¹, Daniela Föll², Jürgen Hennig¹, and Bernd Jung³

¹University Medical Center Freiburg, Dept. of Radiology - Medical Physics, Freiburg, Germany, ²University-Heart Center Freiburg, Cardiology und Angiology I, Freiburg, Germany, ³University Hospital Bern, Institute of Diagnostic, Interventional and Pediatric Radiology, Bern, Switzerland

MR Tissue Phase Mapping (TPM) is a powerful approach to assess left ventricular (LV) function. Conventional Cartesian acquisition-strategies with k-t-based parallel imaging acceleration allow the acquisition of a single slice within a breath-hold, but suffer from low spatial resolution. In this work a comparison with undersampled high-resolution spiral SPIRIT TPM for different trajectory designs within one breath-hold and free breathing Cartesian k-t-accelerated PEAK TPM is presented. High image quality, comparable peak velocity values and time to peaks of spiral SPIRIT TPM for high resolution within a breath-hold might enhance myocardial functional analysis.

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