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各向同性容积扫描技术T1加权成像与液体衰减反转恢复序列T2加权成像在脑转移瘤诊断中的应用 被引量:14

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摘要 颅脑转移性肿瘤包括脑转移瘤,软脑膜转移瘤,硬膜、硬膜外和硬膜下转移瘤以及颅骨转移瘤,其中以脑转移瘤最为常见,其发生率占颅内肿瘤的10%~15%,其中肺癌有40%~50%可以发生颅内转移,预后较差,病死率高。影像检查早期发现颅内转移病变和明确转移瘤的数量对于原发癌的分期、进一步拟订治疗方案及判断预后具有重要意义。由于MR具有无法比拟的软组织对比分辨率,迄今仍是颅内转移瘤的最佳检查方法,但传统的扫描技术在发现微小病变或对转移瘤数目的精确定量上仍存在分辨率不足等缺陷。
出处 《中华放射学杂志》 CAS CSCD 北大核心 2013年第6期555-558,共4页 Chinese Journal of Radiology
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