Echographic criteria for the assessment of the optic nerve condition in intracranial hypertension

Purpose: to develop objective acoustic criteria of the condition optic nerve and its sheaths for an early diagnosis intracranial hypertension (IH). Material methods. The research involved 24 patients (average age 35.8 ± 8.5 years) with suspected IH. control group consisted 48 healthy subjects 28.5 9.5 years). Ultrasound examination retrobulbar part (ON) included measurement ON thickness (ONSD) without (OND) calculation ratio K = ONSD/ OND. Echodensitometry was used evaluate echographic density parenchyma nerve. All were tested magnetic resonance imaging (MRI) analyse brain images. Results. biometrical parameters in as follows: ONS 2.64 0.21 mm ONSD — 4.60 0.34 mm. In IH average diameter 2.57 0.25 5.81 0.42 A comparative assessment showed that values did not exceed 3.5 5.0 IH, significantly higher than those (p < 0.05). coefficient (K)=ONSD/ONS ranged from 1.53 2.0 averaged 1.75 0.14. exceeded (2,40 0.18). analysis data a significant variability echodensitometry compared norm. Conclusion. echography makes it possible determine biometric high accuracy, assess structure relationship surrounding tissues. (K) ONSD/ONS stages disease, even absence clinical criteria.