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KMID : 0384620060170040238
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Korean Journal of Medical Physics
2006 Volume.17 No. 4 p.238 ~ p.245
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An Experimental Study for the Prevention of CT Contrast Media Extravasation with Extravasation Detection Accessory System in Femoral Vein of Rabbit
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Kwon Dae-Chul
Chung Seuk-Hee
Yang Sung-Hwan
Jo Mun-Sun
Jang Keun-Jo
Kim Sun-Keun
Lee Jong-Suk
Yoo Byung-Gu
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Abstract
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To assess the ability of an extravasation defection accessory (EDA) to detect the clinically important extravascular Injection of iodinated contrast material that was delivered with an automated mechanical power injector. The purpose of this study was to assess the ability of this device during clinically important episodes of extravasation. The EDA system was composed of a strain gage, an amplifier and a computer-based system. In the rabbit experimental cases, there were seven true-positive cases (range of the extravasation volumes: ). The algorithm results showed seven true-positive cases (range of the extravasation volumes: ), nineteen true-negative cases, two false-positive cases and no false-negative cases. The EDA system had a sensitivity of 100% and a specificity of 90% for the detection of clinically important extravasation. The EDA system had good sensitivity for the detection of clinically important extravasation and the EDA system has the clinical potential for the early detection of extravasation of the contrast medium that is administered with power injectors.
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KEYWORD
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Contrast media, Extravasation, EDA system, Computed tomography
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