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改良盐水试验注射法减少冠状动脉 CT 血管造影中的静脉空气栓塞。

Reduction of venous air embolism in coronary computed tomography angiography using a modified method of saline test injection.

机构信息

Department of Radiology, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), No. 61, West Jiefang Road, Changsha, 410002, Hunan, China.

Department of Interventional Vascular Surgery, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, 410002, Hunan, China.

出版信息

BMC Med Imaging. 2023 Apr 11;23(1):54. doi: 10.1186/s12880-023-01006-5.

DOI:10.1186/s12880-023-01006-5
PMID:37041532
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10091565/
Abstract

OBJECTIVES

This paper analyzed the feasibility of reducing venous air emboli introduced during tube connection in computed tomography angiography (CTA) through a modified method of saline test injection.

METHODS

A total of 386 cases of patients undergoing coronary CTA examination were randomly arranged into a control group (199 patients underwent conventional saline injection before the CTA examination) and a case group (187 patients underwent modified saline injection before the CTA examination). The two groups were compared for the location (Fisher's exact test), number (χ test), and diameter (Mann-Whitney rank sum test) of the air emboli along the inflow direction of contrast agent within the scan.

RESULTS

The occurrence rate was 10.55% in the control group and 3.74% in the case group respectively, with a statistically different significance (P = 0.010). In the case group, there were 7 cases of small-grade venous air emboli. In the control group, there were 15 cases of small-grade venous air emboli and 6 cases of moderate-grade venous air emboli. No cases of large-grade venous air emboli were found in both groups.

CONCLUSIONS

The use of this modified method of saline test injection before CTA examination is able to effectively decrease the occurrence of venous air emboli introduced during tube connection, which has some certain practical significance.

摘要

目的

本文分析了通过改良的生理盐水测试注射方法，减少 CT 血管造影（CTA）中管连接时引入静脉空气栓塞的可行性。

方法

将 386 例行冠状动脉 CTA 检查的患者随机分为对照组（199 例在 CTA 检查前进行常规生理盐水注射）和病例组（187 例在 CTA 检查前进行改良生理盐水注射）。比较两组沿造影剂流入方向的空气栓塞的位置（Fisher 确切检验）、数量（卡方检验）和直径（Mann-Whitney 秩和检验）。

结果

对照组的发生率为 10.55%，病例组的发生率为 3.74%，差异有统计学意义（P=0.010）。病例组有 7 例小级静脉空气栓塞，对照组有 15 例小级静脉空气栓塞和 6 例中等级静脉空气栓塞。两组均无大等级静脉空气栓塞发生。

结论

在 CTA 检查前使用改良的生理盐水测试注射方法，能有效降低管连接时引入静脉空气栓塞的发生率，具有一定的实际意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/36153ad88d6e/12880_2023_1006_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/48f3aaaed77e/12880_2023_1006_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/75b7d4c9fe4e/12880_2023_1006_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/705b23c5c86a/12880_2023_1006_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/36153ad88d6e/12880_2023_1006_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/48f3aaaed77e/12880_2023_1006_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/75b7d4c9fe4e/12880_2023_1006_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/705b23c5c86a/12880_2023_1006_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ae27/10091565/36153ad88d6e/12880_2023_1006_Fig4_HTML.jpg

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