T1-weighted MRI characteristics of pedal osteomyelitis.

Collins, Mark S; Schaar, Matthew M; Wenger, Doris E; Mandrekar, Jawayant N · AJR Am J Roentgenol · 2005

retrospective_cohort · Level III

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Abstract

The objective of our study was to better define the T1-weighted MRI characteristics of surgically proven pedal osteomyelitis. Decreased T1 marrow signal in a geographic medullary distribution with a confluent pattern and concordance with fat-suppressed T2- and T1-weighted postcontrast signal abnormality was present in 100% of the surgically proven cases of pedal osteomyelitis. None of the patients with decreased T1 marrow signal in a subcortical distribution or in a hazy, reticulated pattern had surgically proven osteomyelitis regardless of the fat-suppressed T2-weighted or postcontrast T1-weighted findings.

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