Skip to main content
Figures 4 | Critical Care

Figures 4

From: Comparison of accuracy of optic nerve ultrasound for the detection of intracranial hypertension in the setting of acutely fluctuating vs stable intracranial pressure: post-hoc analysis of data from a prospective, blinded single center study

Figures 4

Delayed reversal of ONS distension- initial scan. ONUS performed in a 66-year-old patient who became acutely unresponsive two days after removal of an EVD. Scan performed prior to placement of new EVD. The ocular globe is the hypoechoic structure in the upper part of the images and the ONS the linear hypoechoic structure behind the globe. Caliper A identifies a point 3 mm behind the retina while Caliper B measures the ONSD. ONSD is 0.55 cm, suggestive of raised ICP. Opening pressure was >50 mmHg.

Back to article page

Critical Care

ISSN: 1364-8535