CAJ | 학술논문

目的探讨动态增强CT扫描对肺结核瘤的诊断价值.方法经病理及临床证实的肺结核瘤38例,平扫后,以2ml/s速率注入造影剂后1～5min薄层扫描.分析强化值、时间一密度曲线及强化形态.将CT表现与富血管度作相关性分析.结果38例结核瘤增强后扫描除2例外,强化值均小于20Hu,与周围型肺癌、炎性假瘤对比均有显著性差异(P＜0.01).结核瘤的主要强化形态是无强化及包膜样强化(分别为19例、16例),占92%,完全性强化及周围性强化分别为2例、1例.结核瘤的无强化区为干酪样坏死灶,结核瘤的不同强化形态取决于包膜的富血管、完整度及厚度.结核瘤的时间密度一曲线低平,无明显峰值.结论结核瘤动态增强CT扫描在强化值、时间一密度曲线及强化形态均有一定特征,可与周围型肺癌及炎性肿块相鉴别.
목적탐토동태증강CT소묘대폐결핵류적진단개치.방법경병리급림상증실적폐결핵류38례,평소후,이2ml/s속솔주입조영제후1～5min박층소묘.분석강화치、시간일밀도곡선급강화형태.장CT표현여부혈관도작상관성분석.결과38례결핵류증강후소묘제2예외,강화치균소우20Hu,여주위형폐암、염성가류대비균유현저성차이(P＜0.01).결핵류적주요강화형태시무강화급포막양강화(분별위19례、16례),점92%,완전성강화급주위성강화분별위2례、1례.결핵류적무강화구위간락양배사조,결핵류적불동강화형태취결우포막적부혈관、완정도급후도.결핵류적시간밀도일곡선저평,무명현봉치.결론결핵류동태증강CT소묘재강화치、시간일밀도곡선급강화형태균유일정특정,가여주위형폐암급염성종괴상감별.
Objective: To analyze the feature of lung tuberculoma at dynamic contrast - enhanced CT. Methods:38 patients of lung tuberculoma proved by pathologically or clinically were studied. Thin - section CT scans were obtained before and 1,2,3,4 and 5 minutes after injection of contrast material. Results:In 38 cases of lung tuberculoma,maximum enhanced CT value in 36 cases(95% ) was less than 20 Hu, which was lower than that of peripheral pulmonary carcinoma or inflammatory mass(P ＜0.01 ). The main enhancement pattern(92% ) was capsula enhancement (16/38) and no enhancement(19/38). The non enhancement area of tuberculoma was due to caseous necrosis.The enhanced pattern of tuberculoma was lied on vascularity, integrity and thickenss of capsula. Conclusion: Tuberculoma can be differentiated from peripheral pulmonary carcinoma or inflammatory mass by the characteristic of maximum enhanced CT value,enhanced pattern and time -attenuation curves.