宝石能谱CT在诊断肺部肿瘤中的应用价值

Application Value of Gemstone Spectral Imaging(GSI)in the Diagnosis of Lung Tumors

目的:研究宝石能谱CT检查在肿瘤诊断中的应用价值。方法:在我院肿瘤内科2020年6月-2021年6月期间诊治的肿瘤(肺部肿瘤)患者中随机抽取102例为研究对象,均接受病理检查确诊,均接受宝石能谱CT检查,收集整理良恶性肿瘤的CT值、碘浓度、水浓度,收集恶性肿瘤患者中不同病理类型肺癌病灶以及转移淋巴结的CT值、碘浓度等。结果:肺部良性肿瘤在动脉期、门静脉期的水浓度与恶性肿瘤之间的差异均无统计学意义(P>0.05);良性肿瘤在动脉期和门静脉期的碘浓度均低于恶性肿瘤(P<0.05);同一KeV水平下的CT值,良性肿瘤低于恶性肿瘤(P<0.05);同一KeV水平下的CT值比较,非小细胞肺癌<肺鳞癌<肺腺癌,非小细胞肺癌转移性淋巴结<肺腺癌转移性淋巴结<肺鳞癌转移性淋巴结(P<0.05);随着KeV水平的提高,不同病理类型肺癌以及转移性淋巴结的CT值逐渐下降(P<0.05);不同组别之间的有效原子序数差异均无统计学意义(P>0.05);而不同组别的碘浓度和CT能谱衰减曲线斜率则有统计学意义,其中非小细胞肺癌最低,肺鳞癌转移性淋巴结最高(P<0.05)。结论:在肺部肿瘤疾病诊断中应用宝石能谱CT检查能早期明确肿瘤病灶的良恶性,并初步判定病灶的病理类型及其转移性淋巴结。

Objective:To study the value of CT in tumor diagnosis.Methods:in our hospital department of oncology in June 2020-June 2021 diagnosis and treatment of tumor(lung tumor)patients randomly selected 102 cases,all accept pathological examination,all accept gem spectrum CT examination,collect the CT value of good and malignant tumor,iodine concentration,water concentration,collect malignant tumor patients with different pathological types of lung cancer lesions and metastatic lymph node CT value,iodine concentration,etc.Results:There was no significant difference between the arterial and portal stages(P>0.05);Benign tumors had lower iodine concentrations in both the arterial and portal stages than in the malignancy(P<0.05);And the CT value at the same KeV level,Benign tumors were lower than malignant tumors(P<0.05);Comparison of CT values at the same KeV level,NSCLC<lung SCC<lung adenocarcinoma,Metastatic lymph nodes in non-small-cell lung carcinoma,<lung adenocarcinoma lymph nodes,<lung squamous carcinoma lymph nodes(P<0.05);As the KeV levels improve,The CT values of lung cancer and metastatic lymph nodes gradually decreased(P<0.05);None of the groups(P>0.05);But the slope of iodine concentration and CT energy profile were statistically significant,NSCL lung cancer was the lowest,The highest metastatic lymph node(P<0.05).Conclusion:CT examination in the diagnosis of lung tumor disease can clarify the good and malignant of the tumor lesion and preliminarily determine the pathological type of the lesion and its metastatic lymph nodes.