Estimación de valores de normalidad del diámetro de la vaina del nervio óptico en mediciones realizadas con tomografía de cráneo y resonancia magnética cerebral

Abstract

Introduction: The measurement of the diameter of the optic nerve sheath (ONSD) can be carried out by means of transocular ultrasound with a linear transducer, brain magnetic resonance imaging and skull tomography. The main objective is to describe the estimated values of normality of the measurement of the optic nerve sheath in measurements made by skull tomography and brain magnetic resonance imaging. Materials and Methods: This research was descriptive, cross-sectional and retrospective. ONSD was measured using skull tomography and magnetic resonance imaging. Studies that were carried out on different patients, from 2019 to 2021. Results: It was found that, in adult patients, the 95% CI was between 0.44 and 0.45 cm in the CT group, and between 0.42 and 0.44 cm in the MRI group, finding significant differences between the two groups. In pediatric patients, the 95% CI of the CT group was from 0.41 to 0.46, in the MRI group it was from 0.40 to 0.44. Conclusion: Through the present work, it was possible to describe the estimated values of normality of the DVNO, measured through CT and MRI in different patients, we can conclude that there may be minimal