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Contrast media extravasation during dynamic CT: detection with an extravasation detection accessory.

Abstract
To detect extravasation of contrast media during mechanical power injection at dynamic computed tomography, a 5 x 8-cm pliable adhesive patch was applied to the skin over the intravenous cannula and connected to the power injector with a cable to monitor electrical skin impedance. If the rate of change or the slope of impedance over time indicated an extravasation event, the power injector was set into a pause mode. In animal and human studies, monitoring with the device was successful. Extravasation of ionic contrast agents decreased impedance and that of nonionic agents increased impedance.
AuthorsR C Nelson, F A Anderson Jr, B A Birnbaum, J L Chezmar, S N Glick
JournalRadiology (Radiology) Vol. 209 Issue 3 Pg. 837-43 (Dec 1998) ISSN: 0033-8419 [Print] United States
PMID9844684 (Publication Type: Journal Article)
Topics
  • Adult
  • Animals
  • Diagnostic Equipment
  • Dogs
  • Equipment Design
  • Extravasation of Diagnostic and Therapeutic Materials (diagnosis)
  • Feasibility Studies
  • Female
  • Humans
  • Male
  • Middle Aged
  • Tomography, X-Ray Computed

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