MR imaging of clinically suspected scaphoid fractures.

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Abstract
The purpose of this study was to evaluate the usefulness of MR imaging in revealing occult fractures in patients with clinically suspected acute scaphoid fractures who have normal or equivocal findings on radiographs.Thirty-six patients underwent MR imaging within 7 days of wrist injury. All had physical findings suggestive of scaphoid fracture. Coronal T1-weighted, short inversion time inversion recovery, and either T2-weighted or proton density-weighted fast spin-echo sequences with fat suppression were used. Follow-up radiographs were obtained at least 2 weeks after MR imaging whenever possible. All imaging studies were reviewed by two musculoskeletal radiologists.MR imaging revealed 22 occult fractures in 20 patients. Thirteen of these 22 fractures were in the scaphoid bone, and nine were in the distal radius. On MR images, 16 patients had no evidence of fracture. Follow-up radiographs were available in 14 of the 20 patients who had occult fracture revealed by MR imaging. Eleven of the 13 occult fract...

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