398 Emergency Medical Services and Bilateral Lung Ultrasound in Emergency (EMS BLUE) Study

Abstract

demonstrated an area under the curve of 0.982. Cut-off value of 5.2 mm yielded the best test characteristics and accurately predicted raised ICP with a sensitivity of 100%, specificity of 90.8%, positive predictive value of 91.2% and the negative predictive value of 100%.Conclusions: Prediction of elevated intra cranial pressure by bedside ED optic nerve sheath diameter ultrasonography is comparable with CT brain and carries a significant correlation in terms of accuracy, sensitivity, specificity and positive predictive value. Optimal cutt-off of ONSD in indian population is for detecting raised ICP with better sensitivity and specificity is 5.2mm.