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中华卫生应急电子杂志 ›› 2025, Vol. 11 ›› Issue (05) : 263 -268. doi: 10.3877/cma.j.issn.2095-9133.2025.05.002

论著

CT增强扫描评价危重症患者容量反应性的临床意义
杨超, 张少斌()   
  1. 721000 陕西宝鸡,宝鸡市中医医院医学影像科
  • 收稿日期:2025-04-15 出版日期:2025-10-18
  • 通信作者: 张少斌

Clinical significance of CT enhanced scanning in evaluating volume responsiveness in critically Ill patients

Chao Yang, Shaobin Zhang()   

  1. Department of Medical Imaging, Baoji Traditional Chinese Medicine Hospital, Baoji 721000, China
  • Received:2025-04-15 Published:2025-10-18
  • Corresponding author: Shaobin Zhang
引用本文:

杨超, 张少斌. CT增强扫描评价危重症患者容量反应性的临床意义[J/OL]. 中华卫生应急电子杂志, 2025, 11(05): 263-268.

Chao Yang, Shaobin Zhang. Clinical significance of CT enhanced scanning in evaluating volume responsiveness in critically Ill patients[J/OL]. Chinese Journal of Hygiene Rescue(Electronic Edition), 2025, 11(05): 263-268.

目的

探讨CT增强扫描评价危重症患者容量反应性的临床价值。

方法

前瞻性选取2022年1月至2024年6月收治的75例危重症患者,其中男性43例,女性32例;年龄44~73岁,平均(58.6±14.2)岁。根据容量负荷试验后心排血量变化将患者分为容量反应阳性组(n=42)和阴性组(n=33)。所有患者接受CT增强扫描,测量腹主动脉截面积变异度(IVCI)、上腔静脉截面积变异度(IVCV)、肺动脉截面面积变异度(PAVI)等参数,同时行床旁超声评估下腔静脉变异指数(IVC-VI)及被动抬腿试验(PLR),比较不同方法评估容量反应性的准确性。

结果

容量反应阳性组IVCI、IVCV及PAVI显著高于阴性组(P<0.05);ROC曲线分析显示,IVCI、IVCV和PAVI预测容量反应性的曲线下面积(AUC)分别为0.87、0.83和0.78,优于传统IVC-VI评估方法(AUC=0.72,P<0.05);CT增强扫描指导的液体管理方案显著缩短患者机械通气时间和ICU住院时间(P<0.05)。

结论

CT增强扫描评估危重症患者容量反应性具有较高准确性,可为个体化液体管理提供可靠依据,改善临床预后。

Objective

To explore the clinical value of CT enhanced scanning in evaluating volume responsiveness in critically ill patients.

Methods

A total of 75 critically ill patients admitted from January 2022 to June 2024 were selected prospectively. Based on changes in cardiac output after volume loading tests, patients were divided into a volume-responsive positive group (n=42) and a negative group (n=33). All patients underwent CT enhanced scanning to measure parameters such as the variability of abdominal aortic cross-sectional area (IVCI), superior vena cava cross-sectional area (IVCV), and pulmonary artery cross-sectional area (PAVI). Simultaneously, bedside ultrasound was used to assess inferior vena cava variability index (IVC-VI) and passive leg raising (PLR) tests. The accuracy of different methods in evaluating volume responsiveness was compared.

Results

IVCI, IVCV, and PAVI were significantly higher in the volume-responsive positive group than in the negative group (P<0.05). Receiver operating characteristic (ROC) curve analysis showed that the areas under the curve (AUC) for IVCI, IVCV, and PAVI in predicting volume responsiveness were 0.87, 0.83, and 0.78, respectively, which were superior to the traditional IVC-VI assessment method (AUC=0.72, P<0.05). The fluid management protocol guided by CT enhanced scanning significantly shortened the duration of mechanical ventilation and ICU stay (P<0.05).

Conclusion

CT enhanced scanning provides high accuracy in evaluating volume responsiveness for critically ill patients, offering a reliable basis for individualized fluid management and improving clinical outcomes.

表1 两组患者一般资料比较[例(%)]
表2 两组患者基线血流动力学参数比较(±s
表3 两组患者CT增强扫描参数和超声评估结果比较(±s
表4 不同评估方法预测容量反应性的ROC曲线分析结果(%)
表5 不同液体管理方案对临床预后的影响[例(%),±s]
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