mDixon TSE MRI Sequence And Conventional MRI Sequences In Dysimmune Orbitopathies (DDX)

The dysthyroid orbitopathy (DO) is a chronic disease, evolving during 2 to 3 years, with a hypertrophy and a variable degree of inflammation of the eyelid muscles, the oculomotor muscles and the orbital fat.

If the diagnosis of OD is primarily clinical and laboratory, MRI is an additional contribution to the clinic, guiding the therapeutic management by detecting inflammatory lesions not found on clinical examination in 1/3 of cases.

The three MRI sequences conventionally practiced ((T2, T2-fat-sat, T1) allow muscles signal analysis oculomotor abnormalities as well as the orbital fat.

Compared to these sequences, the main advantage sequences DIXON is a faster acquisition. In addition, DIXON type of imaging overcomes most of these artifacts and to obtain a homogeneous fat removal.

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Key information

Conditions

Dysthyroid Ophthalmopathies Autoimmune Diseases Congenital, Hereditary, and Neonatal Diseases and Abnormalities Endocrine System Diseases Exophthalmos Eye Diseases Eye Diseases, Hereditary Genetic Diseases, Inborn Goiter Graves Disease Graves Ophthalmopathy Hyperthyroidism Immune System Diseases Orbital Diseases Thyroid Diseases

Age range

18 year–90 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Fondation Ophtalmologique Adolphe de Rothschild

Paris, Île-de-France Region, 75019, France

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patient aged 18 to 90 years, suffering from thyroid dysfunction proved by clinical and laboratory tests, with a bilateral clinical dysthyroid orbitopathy and undergoing an eye MRI

Exclusion criteria

Absolute or relative contra-indication to MRI or to a contrast agent gadolinium injection (including pregnant or likely to be, breastfeeding women)
Patient under guardianship
Patient not willing to participate.
Lack of affiliation to social security or medical state aid (AME) or universal health coverage (CMU)
Motion artifact on the sequences, not corrected by the repeat sequences
Metal artifact prohibiting the analysis of the region of interest

Treatment and study plan

Primary outcomes

Assessment, by the determination of the Cohen's kappa coefficient, of the concordance between the conventional sequences (T1, T2, T2-fat-sat) and the mDIXON sequence for the diagnosis of inflammatory or non-inflammatory dysthyroid orbitopathy.

Time frame: One hour

Sponsors and collaborators

Lead sponsor

Fondation Ophtalmologique Adolphe de Rothschild

Network

Registry information

Official study title

Study Of The Agreement Between The mDixon TSE Sequence And Conventional MRI Sequences In The Evaluation Of Dysimmune Orbitopathies

Acronym: DDX

Important dates

Study start: 2015
Primary completion: 2020
Study completion: 2020
First posted: Mar 24, 2015
Registry last updated: May 27, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

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