能谱CT碘基物质成像对老年肺炎合并肺栓塞的诊断价值

发布时间：2018-05-24 15:04

本文选题：能谱 + 体层摄影术　；参考：《中华医院感染学杂志》2014年18期

【摘要】：目的探讨能谱CT碘基物质成像对老年肺炎合并肺栓塞的临床诊断价值,使其能够早期诊断、早期治疗。方法老年肺炎合并肺栓塞患者行常规CT平扫和能谱增强扫描,观察测量肺灌注异常区域、肺炎病灶、正常肺组织的碘含量,两者间比较采用两样本的秩和检验。结果肺灌注减低区碘含量、肺炎感染肺段平均碘含量与对侧或邻近正常肺野的碘含量分别为(0.32±0.21)、(0.461±0.31)、(1.93±0.45)g/L,肺灌注减低区与对侧或邻近正常肺野的碘含量差异有统计学意义(Z=-5.63,P0.01),肺灌注减低区和肺炎感染肺段碘含量差异无统计学意义;碘基物质图成像与肺动脉CT成像在完全栓塞病变的诊断符合率为93.1%,部分栓塞病变的符合率为91.1%。结论能谱CT碘基物质成像给老年肺炎合并肺栓塞的诊断提供了一种崭新的影像学诊断方法。
[Abstract]:Objective to evaluate the diagnostic value of energy dispersive computed tomography (EDS) in the diagnosis of pneumonia complicated with pulmonary embolism (PE) in elderly patients, so that it can be diagnosed and treated early. Methods Elder patients with pneumonia complicated with pulmonary embolism were examined with conventional CT scan and enhanced energy spectrum. The iodine content in the abnormal area of pulmonary perfusion, the focus of pneumonia and the normal lung tissue were measured. The rank sum test of two samples was used to test the iodine content between the two groups. Results the iodine content in the decreased pulmonary perfusion area, The average iodine content of pneumonia infection lung segment and the opposite side or adjacent normal lung field were 0.32 卤0.21 and 0.461 卤0.31 g / L, respectively. There was significant difference between the lung perfusion decreased area and the contralateral or adjacent normal lung field. There was significant difference between the lung perfusion decreased area and the pneumonia infected lung. There was no significant difference in iodine content. The diagnostic coincidence rate of iodized substance imaging and pulmonary CT in complete embolism was 93.1, and that of partial embolization was 91.1. Conclusion EDS iodized substance imaging provides a new imaging method for the diagnosis of pneumonia complicated with pulmonary embolism in the elderly.
【作者单位】：浙江医院放射科;
【基金】：浙江省医药卫生科技计划基金资助项目(2013KYB010)
【分类号】：R563.1;R563.5

【相似文献】