BACKGROUND AND OBJECTIVES: We predicted that practitioners could identify injectate spread in a model of ultrasound-guided peripheral nerve block. METHODS: Both novices and experts in ultrasound-guided peripheral nerve block were asked to recognize the spread of local anesthetic in a gelatin ultrasound phantom. In a blinded and randomized fashion, these participants were observed to either successfully or unsuccessfully state whether an injection had been made. RESULTS: Twelve novices and 8 experts each completed the trials. Accuracy, Sensitivity and specificity were calculated for all trials. Users attained a very high accuracy and sensitivity (> 85%) as well as specificity (> 90%) with ultrasound in this model. CONCLUSIONS: This study shows that ultrasound is a reliable method of detecting injectate spread in a gelatin phantom model.
RCT Entities:
BACKGROUND AND OBJECTIVES: We predicted that practitioners could identify injectate spread in a model of ultrasound-guided peripheral nerve block. METHODS: Both novices and experts in ultrasound-guided peripheral nerve block were asked to recognize the spread of local anesthetic in a gelatin ultrasound phantom. In a blinded and randomized fashion, these participants were observed to either successfully or unsuccessfully state whether an injection had been made. RESULTS: Twelve novices and 8 experts each completed the trials. Accuracy, Sensitivity and specificity were calculated for all trials. Users attained a very high accuracy and sensitivity (> 85%) as well as specificity (> 90%) with ultrasound in this model. CONCLUSIONS: This study shows that ultrasound is a reliable method of detecting injectate spread in a gelatin phantom model.
Authors: Zinon T Kokkalis; Andreas F Mavrogenis; Theodosios Saranteas; Nikolaos A Stavropoulos; Sofia Anagnostopoulou Journal: Radiol Med Date: 2013-12-03 Impact factor: 3.469