Abstract #1393

Comparison of Radial and Spiral UTE MRI and T2* quantification of the Knee Joint

Jeehun Kim¹, Richard Lartey¹, Kecheng Liu², Tiejun Zhao², Thomas Benkert³, Heiko Meyer³, and Xiaojuan Li¹

¹Program of Advanced Musculoskeletal Imaging (PAMI), Cleveland Clinic, Cleveland, OH, United States, ²Siemens Medical Solution Inc, Malvern, PA, United States, ³Siemens Healthcare GmbH, Erlangen, Germany

The ultrashort TE (UTE) sequences allow measurement of fast-decaying signal from short T₂^* tissues in the joint such as tendon, ligament, and meniscus. By acquiring multiple echoes along the decay, T₂^* map can be generated, which has a potential to be used as a biomarker for diseases such as arthritis and tendinopathy. However, the comparison of T₂^* maps from different UTE sequences has not been fully explored. In this study, UTE based on stack of spirals and 3D radial acquisition were compared.

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