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分析48例周围型肺癌CT增强扫描的强化特征,其中22例出现高密度条点征;17例呈不均匀、不规则强化;6例强化均匀;3例呈周围性强化。CT—病理对照显示:条点状高密度影是肿瘤内较大血管充盈对比剂形成;不均匀、不规则强化乃由于癌血管分布不均及组织坏死所致;均匀强化是由于癌血管丰富且分布均匀、无明显组织坏死;周围性强化是由于癌中央坏死所致。
The enhanced features of 48 cases of peripheral lung cancer enhanced CT scan were analyzed. Among them, 22 cases showed high-density punctate signs; 17 cases showed uneven and irregular enhancement; 6 cases were uniformly strengthened; 3 cases showed peripheral enhancement. The CT-pathology comparison showed that the punctate high-density shadow was formed by the contrast agent of the large blood vessels in the tumor; the uneven and irregular enhancement was due to the uneven distribution of cancer blood vessels and tissue necrosis; the homogeneous enhancement was due to the rich blood vessels of the cancer and Uniform distribution, no significant tissue necrosis; peripheral enhancement is due to central necrosis of the cancer.