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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