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KMID : 1001220080100020039
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Journal of the Korean Society of Digital Medical Imaging Technology
2008 Volume.10 No. 2 p.39 ~ p.49
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Radiological Evaluation of CT Contrast Medium Extravasation
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Kweon Dae-Cheol
Park Chang-Hee
Jeong Jae-Ho
Kang Hee-Doo
Song Woon-Heung
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Abstract
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Extravasation of contrast material is a not infrequent complication of enhanced imaging studies and large volume extravasation may result in severe damage. Subcutaneous extravasation of the radiographic contrast medium is one of the complications of the contrast medium-enhanced procedures. Automated power injectors enable the contrast material to be delivered at a uniform high-flow-rate and as a nonfragmented bolus, and this is essential for many contrast material enhanced CT(computed tomography) applications. The major risk associated with the use of automated power injectors is the well known complication of contrast material extravasation at the injection site. Automated injection of CT contrast material can produce the compartment syndrome. Selection of the nonionic contrast material after careful evaluation of the intravenous administration site and monitoring of the patient during the use of a mechanical power injector may help minimize or prevent extravasation injuries. Early identification is important and conservative management is effective in most cases. Prevention of these injuries with the education of radiological technologist remains the ultimate aim.
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KEYWORD
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Extravasation, Contrast medium, Computed tomography
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