摘要
目的：本文对３３例肺良性结节进行高分辨力ＣＴ（ＨＲＣＴ）－病理对照研究。目的是探讨肺良性结节的ＨＲＣＴ周围特征、病理基础以及诊断价值。材料与方法：前瞻性分析病理确诊的３３例肺良性结节的ＨＲＣＴ周围特征，并作相应的病理对照研究。随机选择１０例肺原发性小肺癌作对照。通过两位有经验的放射科医师，双盲法观察肺结节周围４种ＨＲＣＴ征象：（１）ＣＴ晕征；（２）ＣＴ血管造影征；（３）周围性肺气肿；（４）灶周线状影。采用相关分析法，确定４种ＨＲＣＴ征象与肺内良性结节的相关性。结果：３３例肺良性结节ＨＲＣＴ－病理对照研究表明：ＣＴ晕征多见于肺部炎性病灶和肺结核瘤（敏感性７９％，特异性８９％）；ＣＴ血管造影征根据结节的部位良恶性各有差异；周围性肺气肿在病理上是由于炎症过程溶蛋白酶活性和瘢痕病变所致；灶周长线状影在良恶性结节无显著差异，短线状影有显著性差异。结论：ＣＴ晕征。
Objective: A prospective HRCT Pathological correlative study on 33 cases of benign pulmonary nodules were presented. The aim is discussing benign pulmonary nodule's HRCT perifocal features, pathological basis and diagnostic va lue.Materials and Methods:This study analyse 33 cases with benign pulmonary nodules that all were proved by pathology about its HRCT perifocal features and HRCT Pathological correlative study. A group of 10 patients with the small primary pulmonary carcinoma were selected randomly. Double blind method was performed to view pulmonary nodule's HRCT perifocal features by two radiologist. The four perifocal features are observed this study: (1) CT halo sign; (2)CT angiography sign; (3)peripheral pulmonary emphysema; (4)perifocal linear shadow. The associable analysis is carried out to be difinited correlative of four HRCT features with benign pulmonary nodules.Results: The results show: the CT halo sign was mostly seen in inflammatory nodule and tuberculoma (sensitivity 79%, specificity 89%); benign and malignant nodules in different location were different on the CT angiograph sign; the peripheral pulmonary emphysema was due to perifocal tissue being destroyed by proteolytic enzyme and being effected by fibrous proccess; the perifocal linear shadow show: long linear shadow has no relation with the benign or malignant nodules, but the short linear shadow has a significently difference.Conclusion: CT halo sign , CT angiograph sign and the peripheral pulmonary emphysema have a important value on HRCT diagnosis in ≤3cm benign pulmonary nodules.
出处
《临床放射学杂志》
CSCD
北大核心
1996年第3期156-159,共4页
Journal of Clinical Radiology
关键词
肺结核
肺囊肿
CT
病理学
肺结节
benign pulmonary nodules pathology High resolution CT Pathology correlative study
