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3D FLAIR Versus Coronal T2-WI MRI in Detecting Optic Neuritis (FLACON)

3D FLAIR Versus Coronal T2-WI MRI in Detecting Optic Neuritis in Patients Presenting With Acute Visual Loss and Otherwise Normal Ophthalmological Examination

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04792866
Acronym
FLACON
Enrollment
1200
Registered
2021-03-11
Start date
2018-01-01
Completion date
2020-08-01
Last updated
2021-03-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Encephalopathy, Multiple Sclerosis, Optic Neuritis

Brief summary

3D FLAIR, 3D T1 FAT SAT, coronal T2 and coronal T1 dixon sequences were usually used to assess visual deficits in MRI. Optic nerve examination is preferably performed using a coronal T2 sequence in order to detect a hypersignal suggestive of inflammation whereas brain examination is preferably performed using a 3D FLAIR sequence to highlight signs of spatial dissemination and lesions suggestive of multiple slerosis (MS). Recently, a study based on a small number of patients showed the interest of 3D FLAIR in the detection of the hypersignal of the optic nerve.The objective of this retrospective study is to determine whether a single 3D FLAIR sequence allows simultaneous exploration of the optic nerve and the brain for the positive diagnosis of optic neuropathy and/or MS.

Interventions

DIAGNOSTIC_TESTMagnetic Resonance Imaging

Comparing 3D FLAIR versus Coronal T2-WI MRI in detecting Optic Neuritis

Sponsors

Fondation Ophtalmologique Adolphe de Rothschild
Lead SponsorNETWORK

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \> 18 years * Decrease in visual acuity explored in MRI between january 2018 and january 2020

Exclusion criteria

* Past history of episode of Optic neuritis

Design outcomes

Primary

MeasureTime frameDescription
Detection of optic neuropathies using MRI1 hourMRI comparison of the diagnostic performance of the 3D FLAIR sequence and the T2 coronal in the detection of optic neuropathies.

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026