[Graves'ophthalmopathy: usefulness of T2 weighted muscle signal intensity].
OBJECTIVE
Immunosuppressive treatments may be usefull when Graves' ophthalmopathy is active. We evaluated the interest of hypertrophied muscle T2 weighted signal intensity as an argument of disease activity, to help for the therapeutic decision.


METHODS
46 MRI in 37 patients with Graves' ophthalmopathy were retrospectively studied.


RESULTS
During the active phase of the disease, centro-muscular hypersignal was always observed (6 cases); signal intensity was not so bright or even disappeared with immunosuppressive treatment (7 cases). We never observed hypersignal when the disease was inactive (4 cases). When there was no hypersignal on T2 weighted images, the disease was inactive in 70% cases, and of low activity in the other cases.


CONCLUSIONS
T2 weighted centro-muscular signal intensity analyse helps for the therapeutic decision in Graves' ophthalmopathy.
Sillaire
I
I
Service d'ophtalmologie, CHU Montpied Clermont-Ferrand.
Ravel
A
A
Dalens
H
H
Garcier
J M
JM
Boyer
L
L
D006111:Graves Disease / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D009801:Oculomotor Muscles / Q000473:pathology*; D012189:Retrospective Studies
IRM et ophtalmopathies associées aux maladies thyroïdiennes: intérêt de l'analyse du signal des muscles oculomoteurs en T2.