能谱CT综合分析对良恶性浆膜腔积液的鉴别价值

发布时间：2019-02-13 20:18

【摘要】：探讨能谱CT综合分析对良恶性浆膜腔积液的鉴别价值。方法:回顾分析2012年1月—2012年10月我院行能谱CT扫描并经组织学或生化检查证实的浆膜腔积液患者85例,其中良性浆膜腔积液14例、恶性浆膜腔积液71例。应用能谱综合分析平台,分别测量和计算各浆膜腔积液的常规混合能量CT值、不同单能量keV(40~140 keV)的CT值、有效原子序数及其分布峰值、脂(水)浓度、水(碘)浓度、水(钙)浓度、能谱曲线斜率并做相应统计分析,统计比较良恶性积液的曲线类型。结果:混合能量和单能量70~120 keV下CT值两组差异无统计学意义,良恶性积液在单能低keV(40~60 keV)CT值有显著的统计学差异,在130~140 keV两组CT值差异有统计学意义,良性积液有效原子序数及其分布峰值均高于恶性(P0.01),恶性组脂(水)、水(碘)、水(钙)浓度均高于良性组(P0.01),良性曲线斜率大于恶性(P0.01),良恶性积液具有不同曲线类型(P0.01)。结论:能谱CT综合分析平台给良恶性浆膜腔积液鉴别提供了一个多参数的方法。
[Abstract]:To study the value of comprehensive analysis of energy spectrum CT in the differential diagnosis of benign and malignant serous cavity effusion. Methods: from January 2012 to October 2012, 85 patients with serous cavity effusion confirmed by histology or biochemical examination were retrospectively analyzed, including 14 cases of benign serous cavity effusion and 71 cases of malignant serous cavity effusion. The conventional mixed energy CT value of each serous cavity effusion, the CT value of different single energy keV (40 ~ 140 keV), the effective atomic number and its distribution peak value, the concentration of lipid (water) and the concentration of water (iodine) were measured and calculated by using a comprehensive energy spectrum analysis platform. The water (calcium) concentration, the slope of energy spectrum curve and the corresponding statistical analysis were made to compare the curve types of benign and malignant effusion. Results: there was no significant difference in CT between the two groups at 70 ~ 120 keV of mixed energy and 70 ~ 120 keV of single energy. There was a significant difference between benign and malignant effusions in low keV (40 ~ 60 keV) CT), and there was a significant difference in CT value between the two groups at 130 ~ 140 keV. The concentration of lipid (water), water (iodine), water (calcium) in malignant group was higher than that in benign group (P0.01), and the slope of benign curve was higher than that of malignant group (P0.01). Benign and malignant effusion had different curve types (P0.01). Conclusion: EDS CT platform provides a multi-parameter method for differential diagnosis of benign and malignant serous cavity effusion.
【作者单位】：大连医科大学附属第一医院放射科;
【分类号】：R730.4

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