肺部肿块CT强化区域微细结构特点分析  

Analysis on the Microstructure Characteristics of Lung Masses on Enhanced CT Scan

作　　者：石宇文[1] 李敏健[1] 谭理连[1] 陈德基[1] 李玉娥[1] 

机构地区：[1]广州医科大学附属第二医院放射科,广东广州510260

出　　处：《中国CT和MRI杂志》2015年第7期33-36,共4页Chinese Journal of CT and MRI

摘　　要：目的分析不同性质的肺部肿块内部强化区域微细颗粒结构及强化分布表现的特点,并探讨其诊断价值。方法将68例已确诊的肺内肿块(直径≥3cm)分为恶性、良性和活动性炎症三组,分析各组CT动脉期增强肿块内部强化区域微细颗粒结构类型及强化分布表现的特点,采用卡方检验对肿块性质与微细结构特点关联性进行检验,对每两组进行比较。结果肿块性质与微结构颗粒分型有中度关联(fisher值=51.119,P<0.001),其Contingency Coefficient为0.649,恶性肿块主要是微颗粒型比例高,良性肿块主要是大颗粒型比例高,炎症肿块主要是大颗粒型和混合型比例高。肿块性质与强化分布类型有中度关联(fisher值=42.662,P<0.001),其Contingency Coefficient为0.605,恶性肿块主要是边缘强化类型比例高,良性肿块和炎症肿块主要是中央强化类型比例高。结论不同性质的肺部肿块其内部强化区域微细结构特点不同,可能反映了不同性质肿块的病理特点,对肿块的定性诊断很有帮助。Objective To analysis the micro-sized particles and strengthening distribution characteristics of different lung masses on enhanced CT scan, and to explore theirs diagnostic value. Methods 68 patients with lung mass confirmed by histopathological examination and clinical follow-up were examined with enhancement CT. Then all lung masses were divided into three groups ：malignant, benign, and active inflammation, Analysised on the micro-sized particles and strengthening distribution characteristics of each groups, examined the association between the nature of lung mass and the microstructure characteristics using chi-square test, compared each of the two groups. Results The micro-sized particles were moderate Associated with the nature of lung masses（fisher value=51.119,P〈0.001）, Contingency Coefficient was 0.649, malignant masses were mainly micro particle type high proportion, benign masses were mainly large particle type high proportion, inflammatory masses were mainly large particle type and mixed type high proportion.The improved distribution type were moderate associated with the nature of lung masses（fisher value = 42.662,P〈0.001）, Contingency Coefficient was 0.605, malignant masses were mainly edge reinforcement high proportion, the benign masses and inflammation masses were mainly the central reinforcement high proportion. Conclusion Conclusion The micro-sized particles and strengthening distribution characteristics of the lung masses with different nature may reflect the characteristics of the pathological changes of different masses, it is very helpful to diagnose and differential diagnoses of lung masses.

关 键 词：肺部肿块 体层摄影术 X线计算机 图像增强 微细结构 

分 类 号：R734.2[医药卫生—肿瘤] R445.3[医药卫生—临床医学]