摘要
目的评价MRI对小脑占位性病变的诊断能力。方法经手术病理证实资料完整的小脑占位性病变26例,恶性肿瘤11例,良性占位性病变15例,均经MRI平扫与增强扫描检查。结果本组中MRI正确诊断良性病变12例,恶性病变9例,定位准确率96.1%,敏感性为81.8%,特异性80%,准确性80.8%,阳性预测值75%,阴性预测值85.7%。结论MRI对该区占位性病变的诊断和鉴别诊断有重要价值。
Objective To assess the capability of MRI for diagnosing cerebellar space - occupying lesions. Methods Twenty - six patients with surgically and pathologically proved cerebellar space- occupying lesions which comprised 11 malignant tumors and 15 benign lesions underwent MRI examinations without and with contrast enhancement. Results MRI correctly diagnosed 12 cases of benign lesions and 9 cases of malignant tumors in all patients. The accuracy of localized diagnosis was 96. 1% in the group. The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of MRI for detecting cerebellar space - occupying lesions were $1.8%, 80.0%, 80.8%, 75.0% and 85.7%, respectively. Conclusion MRI has high potency in the diagnosis and differential diagnosis of cerebellar space - occupying lesions.
出处
《实用医学影像杂志》
2007年第6期344-345,372,共3页
Journal of Practical Medical Imaging
关键词
小脑
恶性肿瘤
良性病变
磁共振成像
Cerebellum
Malignant tumors
Benign lesions
Magnetic resonance imaging
