Norms of Optic Nerve Length on MR Imaging for Adults Sudanese
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 7
Abstract
The aim of this study is to evaluate the length of the optic nerve (ON) in normal Sudanese using magnetic resonance imaging (MRI). This study was performed in Radiology Department of Royal Care International Hospital - Khartoum, Sudan, during the period of January 2015 up to 2018.One hundred normal subject were included in this study with range of age (18-80) years old and both genders. All patients underwent to MR imaging for brain for various reasons (such as headaches, blurring vision …etc) and their results were interpreted as normal by an expert radiologist. Diabetic, hypertension, any eyes problem were excluded. of the one hundred subjects 45 (45%) were males and 55 (55 %) were females. the mean age of the subjects was 39.46years .the ON is divided into four parts intraocular part, intraorbital part , intracanalicular part and intracranial part and have been measured using caliber in (mm). The overall mean length of the right and left optic nerve for all the patients studied was 46.82 ± 1.46 mm. and 46.82±1.46 mm respectively. The minimum was 43.40mm and maximum was 50.09mm for the right side and from 43.39 mm to 50 mm in maximum for the left. the mean RT ocular length was 1.10mm±0.13, orbital 25.88mm± 0.78, canalicular 9.26 mm± 1.07 and cranial 10.61mm ±0.79.LT ocular length was 1.10mm ±0.13,orbital 25.88mm ± 0.79,canalicular 9.23mm ±1.07,cranial 10.60mm ±0.79 .A positive linear relationship between the age with right and left optic nerve length (r 2=0.159) and (r2= 0.163) was noticed. The p- value of (t) test is (1.00) that led to accept that there is no deference between measurement length of the optic nerve for the right and left on length. New equations to estimate the right and left ON length for known Sudanese age were established. The study suggested some recommendations and future studies which could be useful in this element.
Authors and Affiliations
Sahar Abd Elwahed Osman Mustafa, Caroline Edward Ayad, Duha Abdu Mohammed Abdu
Keywords
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- EP ID EP377274
- DOI 10.9790/0853-1707043539.
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