论文部分内容阅读
目的评价MRI对肺癌脑转移的诊断作用。方法回顾性分析45例经病理证实的肺癌脑转移的MR表现,所有病例均经平扫和增强扫描,增强造影剂(Gd-DTPA)用量40例为0.2mmol/kg;5例为0.1mmol/kg。结果肺癌脑转移可表现为单发或多发病灶,形态多为圆形或类圆形,灶周可有或无脑水肿。分布主要在幕上皮、髓质交界区,但幕下小脑半球出现的比例也不低。增强扫描不仅能发现平扫未能显示的病灶,且85%的病例发现了更多的病灶。结论MRI,特别是增强检查是诊断肺癌脑转移的好方法。
Objective To evaluate the diagnostic value of MRI in brain metastases of lung cancer. Methods The MR findings of 45 pathologically confirmed brain metastases of lung cancer were retrospectively analyzed. All patients underwent plain scan and contrast-enhanced scan. The dosage of contrast-enhanced (Gd-DTPA) was 0.2 mmol / kg in 40 cases and 0.1 mmol / kg. Results Brain metastasis of lung cancer can be manifested as single or multiple lesions, mostly round or round shape, with or without cerebral edema week. The distribution is mainly in the epicardium, medulla junction, but the proportion of the infratentorial cerebellar hemisphere is not low. Enhanced scan not only failed to show the plain scan lesions, and 85% of the cases found more lesions. Conclusion MRI, especially enhanced examination is a good way to diagnose brain metastasis of lung cancer.