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Abstract #1163

Initial Evaluation of T2 Shine-Through Elimination with Relax DWI

Paul Summers 1 , Daniel Chong 2 , Valentina Elli 3 , Daniele Giardiello 4 , Mehran Vaziri 1 , Giuseppe Petralia 1 , and Massimo Bellomi 1,3

1 European Institute of Oncology, Milan, Italy, 2 Stillpig Software, Sarawak, Malaysia, 3 University of Milan, Milan, Italy, 4 University of Milan - Bicocca, Milan, Italy

Tissues with long T2s like the prostatic peripheral zone (PZ) can mimic lesions in diffusion weighted MRI due to T2 shine-through. We have evaluated the impact on prostate tumor contrast of Relax DWI, where four or more echo time and diffusion weighting combinations are used to isolate T2 and ADC effects. Relax DWI showed better contrast between tumor and both prostate and peripheral zone when high b-value images were calculated for TE=0 (eliminating T2 effects) than was observed in the acquired images using our scanners minimum TE for the same b-value, without significant change in ADC map appearance.

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