This study aims to adopt a multi-center large sample size study to define (1) the normal range of Chinese ONSD; (2) ONSD diagnosis for patients with high intracranial pressure; (3) to analyze the correlation between ONSD and intracranial pressure.
The ONSD, transcranial Doppler parameters and baseline data of the normal intracranial pressure group and the enhanced intracranial pressure group (more than 200 mmH2O) .
Study Type
OBSERVATIONAL
Enrollment
1,000
no intervention
the first hospital of Jilin university
Changchun, Jilin, China
RECRUITINGThe normal range of ONSD in healthy Chinese adults.
We will perform ONSD measurements with normal people by using ultrasound. We aim to establish the range for optic nerve sheath diameter (ONSD) in healthy Chinese adults. And the normal range of ONSD will be measured and reported.
Time frame: 2021.8-2022.8
determine the ONSD cut-off point for high intracranial pressure.
We will perform ONSD measurements with patients who was suspected high intracranial pressure rand enquiring lumbar puncture. We will analyze the correlation between ONSD and intracranial pressure. And ONSD cut-off point for evaluating high intracranial pressure will be reported.
Time frame: 2021.8-2022.8
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