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Abstract #2687

Short T2* quantification of knee structures based on accelerated UTE Spiral VIBE MRI with SPIRiT reconstruction

Céline Smekens1, Floris Vanhevel2, Ben Jeurissen3, Pieter Van Dyck2, Jan Sijbers3, and Thomas Janssens1
1Siemens Healthcare NV/SA, Beersel, Belgium, 2Department of Radiology, Antwerp University Hospital and University of Antwerp, Edegem, Belgium, 3imec-Vision Lab, Department of Physics, University of Antwerp, Wilrijk, Belgium

Clinical validation of quantitative UTE MRI techniques in musculoskeletal studies remains limited, despite their potential to unveil short T2* information. As these techniques require considerably more scan time than conventional imaging, there is a need for integration of acceleration methods. This study investigated the use of the UTE Spiral VIBE sequence with in-plane acceleration and SPIRiT reconstruction for short T2* mapping of knee structures. As similar image quality and T2* values were obtained for the non-accelerated and accelerated acquisitions, the UTE Spiral VIBE technique shows great promise for fast UTE T2* MRI of the knee.

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