The Comparison of Measuring Optical Nerve Sheath Diameter via Ultrasound versus Magnetic Resonance for Elective Brain Tumor Surgery

Document Type : Original Article

Authors

1 Department of Anaesthesiology, Ege University Faculty of Medicine, Izmir, TURKEY

2 Department of Neurosurgery, Ege University Faculty of Medicine, Izmir, TURKEY

3 Department of Radyology , Ege University Faculty of Medicine, Izmir, TURKEY

10.21608/asja.2024.265464.1064

Abstract

Background: The intracranial pressure (ICP) could be measured via non-invasive and direct evaluation techniques. The objective of study was to determine the pre-post anaesthetic status of ICP, using ultra-sonography (USG) and magnetic resonance imaging (MRI) measurement of optic nerve sheath diameter (ONSD) in- patient scheduled for elective brain tumor surgery.
Results: A prospective observational study was contucted among 27 patients undergoing elective brain tumor surgery. A total of 27 cases between the ages of 18 – 65 (46,7±14,5 years) have been enrolled in our study. The gender distribution was quite even 55.6% (n=15) of them were women and %44.4 (n=12) of them were male. The mean duration of surgery was 202.256.9 hours and the mean time to discharge was 5.041.7 days. The ONSD measurements in pre and post-operative periods via USG and MRI indicated statistical significance (p<0.05).
Conclusions: In this study we did not find a statistical correlation on the measurement of ONSD with USG and MRI. We need large-scale studies with a better training program fort the safe use of USG for ONSD measurement to monitor ICP.

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