mDixon TSE MRI Sequence And Conventional MRI Sequences In Dysimmune Orbitopathies (DDX) (DDX)
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|ClinicalTrials.gov Identifier: NCT02397109|
Recruitment Status : Completed
First Posted : March 24, 2015
Last Update Posted : May 27, 2021
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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.
|Condition or disease|
|Study Type :||Observational|
|Actual Enrollment :||294 participants|
|Official Title:||Study Of The Agreement Between The mDixon TSE Sequence And Conventional MRI Sequences In The Evaluation Of Dysimmune Orbitopathies|
|Actual Study Start Date :||April 4, 2015|
|Actual Primary Completion Date :||September 2020|
|Actual Study Completion Date :||September 2020|
- 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 ]
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|Ages Eligible for Study:||18 Years to 90 Years (Adult, Older Adult)|
|Sexes Eligible for Study:||All|
|Accepts Healthy Volunteers:||No|
|Sampling Method:||Non-Probability Sample|
- 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
- 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
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02397109
|Fondation Ophtalmologique Adolphe de Rothschild|
|Paris, Ile De France, France, 75019|
|Responsible Party:||Fondation Ophtalmologique Adolphe de Rothschild|
|Other Study ID Numbers:||
|First Posted:||March 24, 2015 Key Record Dates|
|Last Update Posted:||May 27, 2021|
|Last Verified:||May 2021|
Eye Diseases, Hereditary
Genetic Diseases, Inborn
Endocrine System Diseases
Immune System Diseases