Abstract #0306
Ultrashort and Short T2 signal detection in cartilage and meniscus: How low do we need to go?
Ashley A Williams 1 and Constance R Chu 1
1
Department of Orthopedic Surgery, Stanford
University, Stanford, CA, United States
This study examines the range of echo times (TEs)
required to detect significant T2* differences in
cartilage and meniscus between two clinically distinct
cohorts: ACL-injured subjects without arthroscopic
evidence of damage to medial femoral cartilage or medial
meniscus, and uninjured controls. Reanalysis of MRI data
from previously reported studies suggests that while UTE
(TE<1ms) was not strictly required to detect differences
between these two cohorts, inclusion of UTE (0.6ms)
acquisitions augmented the ability of T2* calculation to
discriminate between the cohorts, particularly in deep
articular cartilage.
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