利用射频介电常数传感技术对皮下造影剂外渗进行实验检测。

Experimental detection of subcutaneous contrast extravasation using radio frequency permittivity sensing.

作者信息

Bouton Chad E, Lombardi Thomas, Hobson Felicia R, Stark Gregory

机构信息

Battelle Memorial Institute, Columbus, OH 43201, USA.

出版信息

J Comput Assist Tomogr. 2009 Nov-Dec;33(6):824-7. doi: 10.1097/RCT.0b013e31819f9679.

DOI:10.1097/RCT.0b013e31819f9679

PMID:19940644

Abstract

A new method for early detection of extravasations during contrast-enhanced computed tomographic procedures is evaluated. The new method uses radio frequency permittivity-based sensing to detect the onset of an extravasation with high sensitivity and specificity. There were 66 subcutaneous injections performed at the antecubital fossa in 35 volunteers to evaluate the new method. Sensitivity was found to be 98.8% (95% confidence interval, 97.6%-100%), whereas specificity was found to be 99.97% (95% confidence interval, 99.90%-100%).

摘要

对一种在对比增强计算机断层扫描过程中早期检测渗漏的新方法进行了评估。该新方法使用基于射频电容率的传感技术，以高灵敏度和特异性检测渗漏的发生。在35名志愿者的肘前窝进行了66次皮下注射，以评估该新方法。结果发现灵敏度为98.8%（95%置信区间，97.6%-100%），而特异性为99.97%（95%置信区间，99.90%-100%）。