الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Sonography of the optic nerve is a promising new technique in the field of neurology. It may serve as an additional diagnostic tool in different diseases with altered intracranial pressure.
As a non-invasive and cost-effective bedside method, sonography is a promising technique for emergency physicians. It may serve as an additional tool in neurocritical care medicine for detection of raised ICP.
The method is of particular interest in situations when invasive ICP monitoring is contraindicated or when the expertise for invasive monitor placement is not immediately available.
In the current study we enrolled 100 patients admitted over a period of 6 months with moderate to severe traumatic brain injury to determine the value of optic nerve sheath diameter using ultrasonography in assessing increased intracranial pressure, after obtaining institutional ethics approval of Alexandria Faculty of Medicine, and an informed consent was taken from each patient’s next of kin.
Personal data (age and sex) GCS score was recorded for all patients on admission. According to GCS we classified patients into moderate and severe TBI.
CT imaging of the head was done for all patients after ocular ultrasound.
Ocular sonography was done using DC 30 ultrasound machine (Mindray, Shenzen, China, 2017), and measurements was recorded on admission. Ocular sonography was performed using the standard technique bya high- resolution 10-MHZ linear probe on the closed eyelids of all patients. If one eye was injured or was known to be artificial, only a uniocular optic nerve sheath diameter measurement had been made over the unaffected eye. A binocular optic nerve sheath diameter or uniocular measurement in those with one eye measurement greater than 5 mm had been considered abnormal.