Ultrasonographic Measurement of the Optic Nerve Sheath Diameter in the Taiwanese Healthy Volunteers
1 other identifier
observational
200
1 country
1
Brief Summary
The investigators aimed to analyze the ONSD diameters and its associated factors in Taiwanese healthy volunteers. We plan to recruit 150 healthy volunteers aged more than 20 years old. The ONSD and its associated factors will be measured and recorded by ultrasound from September 2020 to August 2021.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2020
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 16, 2020
CompletedFirst Submitted
Initial submission to the registry
October 19, 2020
CompletedFirst Posted
Study publicly available on registry
October 23, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 15, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 15, 2026
June 22, 2025
June 1, 2025
6 years
October 19, 2020
June 17, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
optic nerve outer diameter
optic nerve outer diameter
60 days
Interventions
ultrasound measurement for optic nerve outer diameter
Eligibility Criteria
normal volunteers
You may qualify if:
- adult volunteer aged more than 20 years
You may not qualify if:
- aged less than 20 years
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Emergency Medicine, National Taiwan University Hospital
Taipei, Taiwan
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Wan-Ching Lien
NTUH
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 19, 2020
First Posted
October 23, 2020
Study Start
October 16, 2020
Primary Completion (Estimated)
October 15, 2026
Study Completion (Estimated)
December 15, 2026
Last Updated
June 22, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will not share