Computed tomography imaging of orbits in thyroid orbitopathy

Journal Title: Journal of Pre-Clinical and Clinical Research - Year 2008, Vol 2, Issue 1

Abstract

The aim of this study was to present the authors’ experience with identification and classification of thyroid ophtalmopathy activity. A total of 46 orbits from 23 patients with thyroid ophthalmopathy symptoms were evaluated on computed tomography images in terms of diameters and density of extraocular muscles, muscular index, proptosis, width of the optic nerve, width of superior ophthalmic vein and lacrimal gland position. Radiological symptoms of proptosis were present in 78.3% patients, while 80% cases of diagnosed proptosis were bilateral. The most frequently affected eye muscle was the inferior (61%) and medial (54%) rectus prior to superior (39%), lateral rectus (37%) and superior oblique (26%). The highest correlation between muscle enlargement and proptosis was noted in the case of inferior rectus (77%) and medial rectus (70%). 78% of muscle enlargement was bilateral. Anterior displacement of the lacrimal gland was observed in 58% of cases. Width of the superior ophthalmic vein and the optic nerve (sheath complex) did not differ signifi cantly from normal population ranges. All muscles measured in the study had a lower density when compared to reference data; the density of the thickened muscles was lower than the density of muscles with an unmodified diameter.

Authors and Affiliations

Ewa Fidor-Mikita

Keywords

Related Articles

Levels of interleukin-2 in patients with colon cancer and diabetes type 2

[b]Introduction and objectives.[/b] The risk of development colon cancer (CC) is increased significantly among patients with the type 2 diabetes (T2DM). A mechanism responsible for the higher prevalence of CC among diabe...

Effect of fribrinigen degradation products on various stages of the fibrinolytic process

Over-activation of the fibrinolytic system may result in proteolytic destruction of fibrinogen. However, the effect of the degradation products formed during fibrinogenolysis on fibrinolytic process and plasminogen/plasm...

The role of glutamine and α-ketoglutarate in gut metabolism and the potential application in medicine and nutrition

An amino acid, Glutamine (Gln), is abundant in both the human body and diet. Gln and its derivatives are important factors affecting intestinal function, growth and development as a main source for energy and structure...

No effect of 7-nitroindazole on the anticonvulsant action of vigabatrin and oxcarbazepine in pentylenetetrazole-induced seizures in mice

The aim of this study was to determine the effect of 7-nitroindazole (7-NI – a preferential neuronal nitric oxide synthase inhibitor) on the protective action of oxcarbazepine (OXC) and vigabatrin (VGB) – two newer anti...

Severe gynaecomastia associated with spironolactone treatment in a patient with decompensated alcoholic liver cirrhosis – Case report

Gynaecomastia is uni- or bilateral breast enlargement in males associated with benign hyperplasia of the glandular, fibrous and adipose tissue resulting from oestrogen-androgen imbalance. Asymptomatic gynaecomastia is a...

Download PDF file
  • EP ID EP58597
  • DOI -
  • Views 117
  • Downloads 0

How To Cite

Ewa Fidor-Mikita (2008). Computed tomography imaging of orbits in thyroid orbitopathy. Journal of Pre-Clinical and Clinical Research, 2(1), 59-63. https://europub.co.uk/articles/-A-58597