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KMID : 1149020170190010025
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Journal of Korean Society of Computed Tomographic Technology
2017 Volume.19 No. 1 p.25 ~ p.33
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The Factors Of Computed Tomography That Affect Extravasation Incidence : Retrospective Study
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Park Guan-Jung
Chung Yong-Hwan
Gwon Sun-Ahn
Min Kwan-Hong
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Abstract
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Purpose : The purpose of this study is to prevent and predict extravasation incidence. we had investigated the certain patients who experienced extravasation during the CT examination using contrast-media.
Materials and Methods : 170,897 CT examination cases using contrast media are investigation subjects during January 2014 to March 2016. we compared and analyzed correlations of extravasation according to the contrast injection rate, CT scan type, patient s age, sex, underlying disease and whether Extravasation Detection Accessory, EDA was used or not. in case of contrast injection rate, 12,912 cases were targets that can be tracked through medical records.
Result: Total 118 extravasation occured. In case of using EDA, 63 extravasation occured among 62,774 in total. However, 56 of total were not extravasated by detection and 7(0.01 %) were extravasated. Without EDA, 55(0.05%) extravasation of 108,123 occured. According to injection rates, extravasation occured as follows. In case of injection rates were less than 1 cc/ sec, 8 occured among 585. 15(0.8%) of 1,857 on 1-2cc/sec, 49(0.9%) of 5,753 on 2-3cc/ sec, 42(0.9%) of 4,460 on 3-4cc/sec, 4(1.4%) of 240 on 4cc/sec or more.In case of injection method, when applying bolus technique, 86(73%) extravasation occured. when applying Fixed technique, 32 extravasation occurred. Depending on classifications of CT, extravasation of neuro section was 9(0.1 %) of total 8,653, 15(0.02%) of total 59,453, in chest, 42(0.3%) of total 13,453 in cardiovascular section, 52(0.05%) of total 89,338 in abdomen. In case of gender, extravasation occured as follows. For man, 43(0.05%) of total of 89,453. For women, 75(0.10%) of total of 74,142. Depending on age, extravasation occured as follows.3(0.02%) of total 17,179 less than 40 s, 17(0.05%) of total 32,543 between 40 s and 50 s, 45(0.09%) of total 49,363, between 50 s and 60 s, 58(0.08%) of total 71,812 more than 60 s. In case of disease, extravasation were occured as follows. 9(7.6%) in cerebrovascular disease, 42(35.6%) in cardiovascular disease, 63(53.4%) in cancer, 4(3.4%) in others
Conclusion : In order to prevent the probability of extravasation, CT operators must use EDA, regardless of the contrast injection rates in all cases. special care is required when examining the patients who are women using bolus technique and suffering from cancer and more than 50 s.
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KEYWORD
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Extravasation, CT, Extravasation Detection Accessory(EDA), contrast-media
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