Affiliation:
1. From the Department of Orthopaedic Surgery, Division of Hand Surgery, Nagoya University School of Medicine, Japan
Abstract
The use of a 1.5 tesla superconducting M.R. imager and surface coil was found to enhance the ability of M.R.I, to depict the fine anatomy of the wrist. Five healthy volunteers and 28 patients with scaphoid fractures underwent M.R.I., which made possible a definitive diagnosis of scaphoid fractures at an early stage. A fresh fracture was identified by decreased or iso signal intensity on the T1-weighted image and increased signal intensity on the T2-weighted image. This increase continued until bony union was apparent on radiographs. On the T2-weighted image, high signal intensity was characteristic of fresh fractures and suggested that bony union was possible. When bony union was complete, the intensity of the signal for the scaphoid on both T1 and T2-weighted images returned to normal. M.R.I. should thus prove useful in the diagnosis of scaphoid fractures.
Cited by
74 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献