Document Detail


The value of the short tau inversion recovery sequence in magnetic resonance imaging of thyroid eye disease.
MedLine Citation:
PMID:  8130995     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
22 patients with thyroid eye disease were examined with magnetic resonance imaging (MRI) and the results compared with 10 controls. Imaging was performed on a 1.0 T scanner using a head coil. All patients were examined using both T1W and short tau inversion recovery (STIR) sequences. The relative signal intensity (SI) of individual extraocular muscles were quantified by comparison with SI from the adjacent temporalis muscle to give a signal intensity ratio (SIR). The results were compared with clinical disease activity assessed by the Werner grading system. Visual evaluation of muscle size and calculated SIRs showed an increase when compared to normals in 15 of the 22 patients. This difference was significant in patients with high grade (4-6) clinical disease. The known histological changes in this disease suggest that this increase in signal is caused by oedema secondary to acute inflammation. STIR sequences suppress the retro-orbital fat and thus enhance these changes both in the muscles and in the fat itself. The MR findings suggest that the STIR sequence can be used to predict those patients that will respond to anti-inflammatory treatment.
Authors:
R D Laitt; B Hoh; C Wakeley; J Kabala; R Harrad; M Potts; P Goddard
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of radiology     Volume:  67     ISSN:  0007-1285     ISO Abbreviation:  Br J Radiol     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-04-20     Completed Date:  1994-04-20     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0373125     Medline TA:  Br J Radiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  244-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Diagnostic Radiology, Bristol Royal Infirmary, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult
Eye Diseases / pathology
Female
Graves Disease / pathology*
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Oculomotor Muscles / pathology

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