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北京京煤集团总医院                                                          第十一届·2023 学术年会论文集

                    双源 CT 低剂量肺动脉 CTA 检查技术在肺动脉栓塞临床诊


                                                 断中的应用研究


                    Application of dual-source CT low-dose pulmonary artery CTA in the clinical diagnosis of
                                                   pulmonary embolism

                      潘智杰，章永涛，张瑞智，常洋  Pan Zhijie, Zhang Yongtao, Zhang Ruizhi, Chang Yang
                                          (北京京煤集团总医院影像科北京 102300)
                          (Imaging Department of Beijing Jingmei Group General Hospital,Beijing 102300)

                   【摘要】目的：分析双源 CT 低剂量肺动脉 CTA 检查技术在肺动脉栓塞临床诊断中的应用
                   效果。方法：选取北京京煤集团总医院 2022 年 3 月-2022  年 12  月采取肺动脉 CTA 检查的

                   疑似肺动脉栓塞患者 102 例作为研究对象，按照扫描电压、剂量作为分组标准分为实验组和
                   对照组。对照组采取常规管电压及常规对比剂剂量实施扫描检查，实验组采取低管电压和低

                   剂量对比剂实施扫描，同时分析患者肺动脉 CTA 检查的图像，分析患者不同诊断方式的诊

                   断准确度、灵敏度、特异度以及图像参数。结果：通过研究对比，两组患者在疾病的诊断准
                   确度、灵敏度和特异度上的结果对比无较大差异，统计学对比无意义。通过 CTA 图像质量

                   的分析，实验组患者的图像质量评分均高于对照组，两组患者的图像质量评分对比具有差异，
                   P＜0.05 统计学有意义。实验组患者的 CNR、SNR 图像参数以及辐射剂量相比对照组更低，

                   两组患者的图像参数对比具有差异，P<0.05 统计学有意义。结论：为肺动脉栓塞患者实施肺
                   动脉 CTA 检查的时候采用双源 CT 低剂量扫描模式，患者的诊断效果更高，具有较高诊断

                   准确度、灵敏度和特异度的情况下使用对比剂的剂量更少，还能提高图像扫描的质量，避免

                   患者由于使用对比剂而产生不良反应，因此双源 CT 低剂量肺动脉 CTA 检查技术具有极高
                   的应用价值。

                   【关键词】双源 CT 低剂量肺动脉 CTA 检查；肺动脉栓塞；临床诊断；应用价值
                   [Abstract] Objective: To analyze the application of dual-source CT low-dose pulmonary artery
                   CTA  in  the  clinical  diagnosis  of  pulmonary  embolism.  Methods:  102  patients  with  suspected

                   pulmonary embolism who underwent pulmonary artery CTA from March 2022 to December 2022
                   in Beijing Jingmei Group General Hospital were selected as the study subjects. They were divided
                   into  experimental  group  and  control  group  according  to  the  scanning  voltage  and  dose  as  the
                   grouping criteria. The control group was scanned with conventional tube voltage and conventional

                   contrast agent dose, while the experimental group was scanned with low tube voltage and low dose
                   contrast agent. At the same time, the images of patients pulmonary artery CTA were analyzed, and
                   the  diagnostic  accuracy,  sensitivity,  specificity  and  image  parameters  of  patients  with  different
                   diagnostic methods were analyzed. Results: There was no sienificant difference in the results of

                   diagnosis  accuracy.  sensitivity  and  specificity  between  the  two  groups,  and  the  statistical
                   comparison was not significant. Through the analysis of CTA image quality, the image quality score
                   of patients in the experimental group was higher than that in the control group, and there was a


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