title: Relation between intraocular pressure and size of transverse sinuses.
abstract: There are asymmetries in the sizes of transverse sinus and intraocular pressure. The purpose of this study was to investigate possible relationships between the asymmetry of transverse sinuses in TOF MR venography and intraocular pressures of right and left eyes. In this study, subjects were 63 male and 42 female medical school students, aged 18-21 years (mean+/-SD; 19.72+/-0.67 years). Subjects with neurological and ophthalmologic disease, particularly dural sinus thrombosis, myopia, trauma and glaucoma, were excluded the study. Subjects were divided into five groups according to the magnitudes of the right- and left-transverse sinuses in MR venography results. There is a functional relation between intraocular pressures of the right and left eyes and asymmetry of the transverse sinus. If the transverse sinus on one side is larger and its venous drainage is greater, the intraocular pressure of the eye on this side is lower. It can be speculated that the transverse sinus size may be associated with pathogenesis of diseases with increased intraocular pressure such as glaucoma. We aim to determine the relation between the size and drainage of transverse sinuses in TOF MR venography and intraocular pressure in patients with open-angle glaucoma in our next study.
authors.affiliation: Department of Radiology, Medical Faculty, Atatürk University, 200 Evler Mah. 14. Sok No. 5, Dadaskent, Erzurum, Turkey. akkanrad@hotmail.com
authors.forename: Mecit
authors.initials: M
authors.lastname: Kantarci
authors.forename: Senol
authors.initials: S
authors.lastname: Dane
authors.forename: Kenan
authors.initials: K
authors.lastname: Gumustekin
authors.forename: Omer
authors.initials: O
authors.lastname: Onbas
authors.forename: Fatih
authors.initials: F
authors.lastname: Alper
authors.forename: Adnan
authors.initials: A
authors.lastname: Okur
authors.forename: Murat
authors.initials: M
authors.lastname: Aslankurt
authors.forename: Ahmet Taylan
authors.initials: AT
authors.lastname: Yazici
mesh_terms: D000293:Adolescent; D000328:Adult; D002550:Cerebral Veins / Q000033:anatomy & histology; D003392:Cranial Sinuses / Q000033:anatomy & histology*; D017352:Echo-Planar Imaging / Q000379:methods; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007429:Intraocular Pressure / Q000502:physiology*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D011446:Prospective Studies