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Abstract #1899

Analysis of Endocardial Border Sharpness of Accelerated 2D CINE SSFP: Implications for Left Ventricular Function Assessment

Fabian Hezel1, Marcus Katoh2, Harald Khl3, Helena Grawe3, Jane F. Utting1, Thoralf Niendorf1,4

1Division of Experimental MR Imaging, Department of Diagnostic Radiology, University Hospital, RWTH Aachen, Germany; 2Department of Diagnostic and Interventional Radiology, University Hospital of Saarland, Homburg/Saar, Germany; 3Medical Clinic I, University Hospital, RWTH Aachen, Germany; 4Faculty of Mathematics, Computerscience and Natural Science, RWTH Aachen University, Aachen, Germany

Accelerated 2D CINE SSFP affords scan time reduction in LV function assessment though image blurring remains a concern. A method for endocardial border sharpness (EBS) analysis is introduced and applied to conventional, SENSE and k-t BLAST accelerated 2D CINE SSFP. A fairly rapid EBS degeneration was observed for k-t accelerations of R≥8. Consequently, the imaging speed advantage of k-t BLAST over conventional 2D CINE SSFP should be balanced against EBS deterioration. An acceleration of R<8 is advised for LV function assessment, which still provides sufficient acceleration to accomplish 3-4 slices per breath-hold without adverse effects on image quality.