Abstract #0638

3D True Polarity Recovery with Independent Phase Estimation Using Multi-layer Stacks Based Region-Growing (3D-TRIPS)

Haining Liu¹, Gregory J Wilson², Niranjan Balu², Jeffery H Maki², Martin L Gunn², Hiroko Watase², Daniel S Hippe², and Chun Yuan²

¹Department of Bioengineering, University of Washington, Seattle, WA, United States, ²Department of Radiology, University of Washington, Seattle, WA, United States

3D whole heart phase sensitive late gadolinium enhanced (LGE) imaging can improve myocardial scar detection. Phase sensitive inversion recovery (PSIR) LGE is sub-optimal for clinical 3D application as it doubles the scan time with a fully sampled reference image. To address this, we develop 3D True Polarity Recovery with Independent Phase Estimation Using Multi-layer Stacks Based Region-Growing (3D-TRIPS) for direct reconstruction of 3D phase sensitive images without need for a separate reference scan. We demonstrate that 3D-TRIPS images shows good agreement and less artifacts compared with PSIR images. 3D-TRIPS will allow 3D-LGE imaging with half the scan time of PSIR.

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