Abstract #0308
Ultra-short Echo Imaging of Cyclically Loaded Rabbit Patellar Tendon
Matthew F. Koff 1 , Sarah Pownder 1 , Wei Yang Lim 1 , Parina Shah 1 , and Hollis G. Potter 1
1
Department of Radiology and Imaging - MRI,
Hospital for Special Surgery, New York, NY, United
States
Tendon visualization using standard MR sequences is
difficult due to limited signal intensity. UTE sequences
display contrast within a tendon, and allow for T2*
calculation. This study determined the effects of a
freeze-thaw cycle and cyclic loading on tendon T2*
values. No difference of T2* was found between the fresh
and frozen samples, and shorter T2* values were found
after loading. Reduction of T2* is due to greater tissue
organization from the uncrimping of collagen fibrils.
The relationship between T2* and applied load has
clinical implications for assessment of ligament
reconstruction and tendon repair.
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