动态CT扫描对肺部孤立结节的评价  

Dynamic enhanced CT evaluation of solitary pulmonary nodule

作　　者：曾庆思[1] 谢念危[1] 邓韶铭[1] 林翰菲[1] 蔡欣[1] 

机构地区：[1]广州医学院第一附属医院放射科

出　　处：《中华放射学杂志》1997年第3期164-167,共4页Chinese Journal of Radiology

摘　　要：目的：应用动态ＣＴ扫描评价肺部孤立结节。材料和方法：对４７例成年患者的肺部孤立结节（直径≤４ｃｍ）进行研究。其中，恶性肿瘤２７例，结核瘤１２例，炎症结节７例，错构瘤１例，在静脉注射碘造影剂１００ｍｌ前后，对病灶进行一系列薄层扫描，测量增强前后各次扫描病灶的ＣＴ值。结果：所有恶性肿瘤和炎症结节显著增强，结核瘤无显著增强（Ｐ＜０．００１）。２６例恶性肿瘤、７例炎症结节和１例错构瘤呈全部强化型；１例恶性肿瘤和１例结核瘤呈周围强化型；４例结核瘤呈边缘环状强化型；７例结核瘤不强化。结论：（１）结节强化是恶性肿瘤和炎症结节的一个指征。（２）不强化或边缘环状强化提示结核瘤。Purpose:To use incremental dynamic enhanced computed tomography(CT) to evaluate solitary pulmonary nodules(SPNs). Materials and methods:Fourty seven adult patients with SPNs (diameter≤4cm)had 27 malignant nodules, 12 tuberculomas, 7 inflammatory nodules and 1 hamartoma. Serial thin section CT scans were performed before and after injection of 100 ml iodinated contrast material. The CT numbers of the nodule were calculated before and after administration. Results:All malignant nodules and all inflammatory nodules showed significantly greater enhancement( P <0.001). Tuberculomas didn't show substantial enhancement. 26 malignant nodules, 7 inflammatory nodules and 1 hamartoma showed complete enhancement, 1 malignant nodules and 1 tuberculoma showed peripheral enhancement, 4 tuberculomas showed ring enhancement, and 7 tuberculomas showed no enhancement. Conclusion:(1)Enhancement of nodule is an indication of malignancy or inflammation.(2)No enhancement and/or marginal enhancement is suggestive of tuberculoma.

关 键 词：肺硬币病变 CT 肺肿瘤 肺炎 错构瘤 

分 类 号：R734.2[医药卫生—肿瘤] R563.1[医药卫生—临床医学]