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Abstract #2575

Flow Artifact Suppression in Subtractionless First-Pass Peripheral Angiography Based on Vessel Tree Segmentation

Holger Eggers 1 , Rafael Wiemker 1 , Peter Brnert 1 , and Tim Leiner 2

1 Philips Research, Hamburg, Germany, 2 Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands

Flow compensation is usually not applied in first-pass peripheral angiography due to stringent scan time constraints. This entails the occurrence of flow artifacts, which are potentially aggravated by the recently proposed use of Dixon- instead of subtraction-based background suppression in this application. Therefore, the effect of flow artifacts inside the vessels on the water-fat separation is studied in the present work and illustrated by examples. Moreover, an approach is proposed that relies on a vessel tree segmentation to provide a comprehensive suppression of flow artifacts in subtractionless first-pass peripheral angiography.

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