Abstract #2745

Prostate DWI: comparison of a shorter diagonal acquisition to standard 3-scan-trace acquisition

Stefanie Hectors¹, Idoia Corcuera-Solano², Mathilde Wagner¹, Sara Lewis², Nicholas Titelbaum³, Ashutosh Tewari⁴, Ardeshir Rastinehad⁴, and Bachir Taouli^1,2

¹Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States, ²Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States, ³Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States, ⁴Department of Urology, Icahn School of Medicine at Mount SInai, New York, NY, United States

Diagonal single shot EPI (SS-EPI) diffusion-weighted imaging (DWI) potentially allows for reduced acquisition time with preserved image quality. In this study, diagonal DWI was compared to standard SS EPI 3-scan-trace DWI of the prostate in terms of image quality and quantitative ADC. ADC values were similar between the 2 sequences (coefficient of variation <4 %). Significant fewer artifacts were observed in the diagonal acquisition. These results show that diagonal DWI can provide substantial reduction in acquisition time (40%) while maintaining adequate image quality.

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