A Prospective Comparative Study of Optic Nerve Sheath Diameter Measurement by Ultrasonography vs Computed Tomography Scan for the Detection of Elevated Intracranial Pressure in Patients with Acute Neurological Emergencies - Prabakaran Parameswaran; Balaji Venkatachalam; Thamarai Selvi; Naveen Selvaraj; Srinivasan Ravi (Indian Journal of Critical Care Medicine, 2026)