Ultrasonographic optic nerve sheath diameter Measurement for raised intracranial pressure in a Tertiary care centre of a developing country.

Abstract

We identified threshold of Ultrasonographic ONSD measurement in infants >4.0 mm, in children 1-10 yrs >4.71 mm, in adolescent >10 yrs >5.43 mm for raised ICP with sensitivity and specificity of 100% and 60-66.7% respectively. 85% of patients showed raised ICP with Ultrasonographic ONSD measurement with GCS ≤12.