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Abstract #5013

Highly Efficient Bi-Component T2* Mapping of the Knee using Ultra-short Echo Ramped Hybrid Encoding

Hyungseok Jang1, Fang Liu1, Richard Kijowski1, and Alan B McMillan1

1Department of Radiology, University of Wisconsin, Madison, WI, United States

T2* analysis is used in musculoskeletal imaging to characterize tendon, meniscus, and cartilage in human joints. With the development of high performance gradient systems, ultrashort time echo (UTE) imaging has become more feasible, allowing robust bi-component of short and long T2* tissue components. Many studies have been performed to realize robust and clinically feasible bi-component T2* imaging, but the long acquisition time required to obtain multiple echo images remains challenging. In this study, we propose a novel, rapid imaging scheme for bi-component T2* analysis, based on ramped hybrid encoding (RHE) that allows robust bi-component T2* estimation within a single scan.

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