Abstract #0406

Comparison of Conventional DCE-MRI and a Novel Golden-Angle Radial Compressed-Sensing and Parallel Imaging Method for the Evaluation of Breast Lesion Conspicuity and Morphology

Laura Heacock¹, Yiming Gao¹, Samantha Heller¹, Amy Melsaether¹, Sungheon Kim^1,2, and Linda Moy¹

¹Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, ²Center for Advanced Imaging Innovation and Research (CAI2R), New York University School of Medicine, New York, NY, United States

GRASP DCE-MRI (Golden-angle Radial Sparse Parallel) DCE-MRI allows simultaneous high spatial and temporal resolution. The purpose of this study was to evaluate breast lesion conspicuity between GRASP and conventional Cartesian sampling DCE-MRI. Readers assessed conspicuity of 48 biopsy-proven lesions on conventional DCE-MRI and subsequent GRASP biopsy. No significant difference was found between the two techniques for all lesions (p=0.21, p=0.19, p=0.46), masses (p=1.0, p=0.48, p=0.7) or NME (p=0.18,p=0.08, p=0.64). There was strong reader agreement in evaluating conspicuity (ICC=0.735). GRASP DCE-MRI is comparable to conventional DCE-MRI imaging for masses and NME with diagnostic-quality high spatial resolution and flexibility of temporal resolution.

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