低剂量增强肺动脉 CTA在产褥期女性肺动脉栓塞诊断中的应用价值

doi:10.3969/j.issn.1671-7171.2026.05.020

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摘要 【目的】探讨低剂量增强肺动脉CT血管成像(CTA)在产褥期女性肺动脉栓塞诊断中的应用价值。【方法】选取2022年1月至2025年1月在本院接受肺动脉CTA检查的82例产后疑似肺动脉栓塞女性,根据对比剂的使用剂量分为常规剂量组与低剂量组,每组41例。比较两组患者血管强化CT值、图像质量、辐射剂量[容积CT剂量指数(CTDI_vol)、剂量长度乘积(DLP)、有效剂量(ED)]、不良反应发生情况。【结果】低剂量组左肺静脉、右肺静脉CT值低于常规剂量组(P<0.05)。两组图像质量优良率比较,差异无统计学意义(P>0.05);低剂量组CTDI_vol、DLP、ED低于常规剂量组(P<0.05)。低剂量组不良反应总发生率低于常规剂量组(P<0.05)。【结论】低剂量增强肺动脉CTA在保证图像质量的同时,可降低辐射剂量和不良反应发生风险,具有较高临床应用价值。

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	陈佳宜

关键词 ：肺动脉, 肺栓塞, 计算机体层摄影血管造影术, 产后期, 诊断

Abstract：【Objective】 To explore the clinical application value of low-dose enhanced pulmonary artery computed tomography angiography (CTA) in the diagnosis of pulmonary embolism among puerperal women. 【Methods】 A total of 82 postpartum women with suspected pulmonary embolism who underwent pulmonary artery CTA examination in our hospital from January 2022 to January 2025 were enrolled. According to the dosage of iodinated contrast agent, they were divided into conventional-dose group and low-dose group, with 41 cases in each group. The two groups were compared in terms of vascular enhancement CT value, excellent and good rate of image quality, radiation dose parameters including volume CT dose index (CTDI_vol), dose-length product (DLP) and effective dose (ED), as well as the incidence of adverse reactions related to examination. 【Results】 The CT values of the left and right pulmonary veins in the low-dose group were lower than those in the conventional-dose group, with statistically significant differences . There was no significant difference in the excellent and good rate of image quality between the two groups . The radiation dose indicators of CTDI_vol, DLP and ED in the low-dose group were significantly lower than those in the conventional-dose group.The overall incidence of adverse reactions in the low-dose group was markedly lower than that in the conventional-dose group . 【Conclusion】 Low-dose enhanced pulmonary artery CTA can effectively reduce radiation exposure dose and lower the risk of adverse reactions induced by iodinated contrast agents on the premise of ensuring the image quality required for clinical diagnosis. It is more suitable for the special physiological state of puerperal women, and possesses high clinical popularization and application value.

Key words： Pulmonary Artery Pulmonary Embolism Computed Tomography Angiography Postpartum Period Diagnosis

收稿日期: 2025-08-23

中图分类号:

R542.54

引用本文:

陈佳宜. 低剂量增强肺动脉 CTA在产褥期女性肺动脉栓塞诊断中的应用价值[J]. 医学临床研究, 2026, 43(5): 777-779.
CHEN Jiayi. Application Value of Low-Dose Enhanced Pulmonary Artery CTA in the Diagnosis of Pulmonary Embolism in Puerperal Women. JOURNAL OF CLINICAL RESEARCH, 2026, 43(5): 777-779.

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http://journal07.magtech.org.cn/yxlcyj/CN/10.3969/j.issn.1671-7171.2026.05.020 或 http://journal07.magtech.org.cn/yxlcyj/CN/Y2026/V43/I5/777

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