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- Title
Radiologically occult scaphoid and wrist fractures. Preliminary results in comparison of 0.2-T and 1.0-T units.
- Authors
Breitenseher, M. J.; Trattnig, S.; Gäbler, C.; Happel, Brigitte; Bankier, A.; Kukla, C.; Rand, T.; Imhof, H.
- Abstract
The study was performed to determine the diagnostic value of different MR systems and field strengths in patients with occult scaphoid and wrist fractures. Twelve patients with clinical suspicion of a scaphoid fracture but normal plain radiographs were examined by MRI. A dedicated 0.2-T unit (Esaote) and a 1.0-T unit (NT10, Philips) were used. Coronal T1W-SE, STIR, and T2*W-GE sequences were obtained with both systems. Images were evaluated for a bone marrow abnormality, a trabecular or cortical fracture line, and were compared to the 6-week follow-up radiographs. Seven wrist fractures were found at 0.2 T and 1.0 T, proven in the follow-up radiographs. A bone marrow abnormality was present in all seven fractures on both systems. Trabecular and cortical fracture lines were visualized at 0.2 T in four cases and at 1.0 T in seven cases. Low-field MR imaging at 0.2 T and mid-field MR imaging at 1.0 T seem to be equivalent in the diagnosis of a fracture in radiographically occult scaphoid and wrist fractures. In the visualization of fracture details, important for therapeutic and prognostic considerations, 1.0 T seems to be superior.
- Publication
Der Radiologe, 1997, Vol 37, Issue 10, p812
- ISSN
0033-832X
- Publication type
Article
- DOI
10.1007/s001170050287