• Om Biju Panta, Bibek Gurung, Shahjan Raj Giri, Abhishek Adhikari, and Ram Kumar Ghimire.
• Department of Radiology and Imaging, Nepal Mediciti Hospital, Bhaisepati, Lalitpur, Nepal.
• JNMA J Nepal Med Assoc. 2023 Dec 1; 61 (268): 934937934-937.

IntroductionThe measurement of brain volume is an important aspect of the assessment of brain structure and function. However, limited data is available on brain volumetry in the Nepalese population. The study aimed to find the mean intracranial volume of the brain among patients with normal magnetic resonance imaging referred to the Department of Radiology and Imaging of a tertiary care centre.MethodsA descriptive cross-sectional study was conducted among patients with normal magnetic resonance imaging referred to the Department of Radiology and Imaging in a tertiary care centre. All magnetic resonance imaging of the brain during the study period was reviewed by a radiologist. Magnetic resonance imaging with abnormal findings, clinical signs of neurological deficit, dementia and psychiatric symptoms were excluded from the study. A convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval.ResultsAmong 285 Magnetic Resonance Imaging datasets, the mean intracranial volume was 1286.30±129.88 cc (1271.22-1301.38, 95% of Confidence Interval). The mean cerebral volume was 985.06±106.4 cc, cerebellar volume was 126.99±13.05 cc and brain stem volume was 19.97±2.54 cc.ConclusionsThe mean intracranial volume of the brain among patients with normal magnetic resonance imaging was found to be lower than other studies done in similar settings.Keywordsbrainstem; cerebellum; cerebrum; magnetic resonance imaging.

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