T1-weighted MRI characteristics of pedal osteomyelitis.
OBJECTIVE
The objective of our study was to better define the T1-weighted MRI characteristics of surgically proven pedal osteomyelitis.


CONCLUSIONS
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.
Collins
Mark S
MS
Department of Radiology, Mayo Clinic, 200 First St. SW, Charlton 2-290, Rochester, MN 55905, USA. collins.mark@mayo.edu
Schaar
Matthew M
MM
Wenger
Doris E
DE
Mandrekar
Jawayant N
JN
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001853:Bone Marrow / Q000473:pathology; D003287:Contrast Media; D005189:False Positive Reactions; D005260:Female; D005529:Foot Bones / Q000473:pathology*; D005534:Foot Diseases / Q000175:diagnosis*; D005682:Gadolinium; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010019:Osteomyelitis / Q000175:diagnosis*; D011237:Predictive Value of Tests
D003287:Contrast Media; D005682:Gadolinium