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Abstract #0360

Sub-regional Quantification of Tissue-Specific Hydration State in Patellar Tendinopathy with 3D Ultrashort Echo Time MRI

Stephan Breda1, Dirk Poot1, Dorottya Papp1, Gabriel Krestin1, Robert-Jan de Vos2, and Edwin Oei1
1Radiology & Nuclear Medicine, Erasmus University Medical Center, Rotterdam, Netherlands, 2Orthopedics & Sports Medicine, Erasmus University Medical Center, Rotterdam, Netherlands

Patellar tendinopathy (PT) is an overuse injury of the patellar tendon in athletes, often resulting from jumping activities such as playing basketball or volleyball. MR imaging with ultrashort echo times (3D-UTE MRI) is used to image the typical degenerative process of the proximal patellar tendon in PT. However, image analysis can be challenging within the heterogeneous patellar tendon affected by tendinopathy. Therefore, we propose a novel method for image analysis, in which voxels are sub-selected based on a parameter from bi-exponential fitting. This resulted in the identification of T2* biomarkers, specific for distinct tissue-compartments within the patellar tendon.

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