Methods: 8 patients with posttraumatic anosmia and 12 normal volunteers underwent MR examination. In anosmic patients, the injury of olfactory bulbs and related cortex was visualized and recorded. 方法:8例外伤后失嗅病人行MRI检查,观察并记录嗅球及皮层损伤情况,测量嗅球体积体积。并与12例健康志愿者对照。