Radiological Evaluation of CT Contrast Medium Extravasation

CT 조영제 혈관외유출의 방사선학적 고찰

  • 권대철 (신흥대학 방사선과) ;
  • 박창희 (대구보건대학 방사선과) ;
  • 정재호 (경희의료원 의학정보센터 PACS팀) ;
  • 강희두 (경희의료원 의학정보센터 PACS팀) ;
  • 송은홍 (신흥대학 임상병리과)
  • Published : 2008.12.30

Abstract

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.