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Extravasation detection accessory: clinical evaluation in 500 patients
B A Birnbaum1, R C Nelson, J L Chezmar
1Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA. birnbaum@oasis.rad.upenn.edu
Radiology
|August 3, 1999
Summary
An extravasation detection accessory (EDA) accurately monitors intravenous injections, detecting clinically important contrast material extravasation during CT scans. This device offers high sensitivity and specificity, enhancing patient safety in radiology.
Area of Science:
- Radiology
- Medical Imaging Technology
Background:
- Extravasation of contrast material during power injection for CT scans is a potential complication.
- Early detection and interruption of extravasation are crucial to minimize patient harm.
Purpose of the Study:
- To evaluate the efficacy of an extravasation detection accessory (EDA) in identifying clinically significant (> or = 10 mL) extravascular contrast material injection.
- To assess the performance of the EDA in conjunction with automated power injectors during body CT.
Main Methods:
- A prospective, multi-institutional observational study involving 500 patients undergoing contrast-enhanced body CT.
- The EDA was utilized to detect and halt injections associated with significant extravasation.
- Helical CT at the injection site confirmed the presence and volume of extravasation.
Main Results:
- The EDA demonstrated 100% sensitivity and 98% specificity in detecting clinically important extravasation.
- Four cases of clinically important extravasation (13-18 mL) were correctly identified.
- The overall prevalence of clinically important extravasation was 0.8%.
Conclusions:
- The extravasation detection accessory is a safe, accurate, and user-friendly tool for monitoring intravenous injections.
- The EDA is particularly beneficial for high-flow-rate CT applications, improving patient safety.
- This technology aids in preventing complications associated with contrast extravasation.