Abstract
Background: Vertigo is a symptom that neurologists and otologists are confronted with. Magnetic resonance image (MRI) is used for imaging. Objective: To determine the diagnostic yield of MRI in patients with vertigo and to Identify the most common causes. Patients and Methods: This observational study involved 110 vertigo complaining patients attending the MRI unit of Rizgary teaching hospital examined by 0.2 Tesla MRI between June 2007 and September 2008.Collected variables divided into Group 1 (normal MRI) and Group 2 (abnormal MRI) analysed and compared. Results: Group 1= (70%) and Group 2=(30%), abnormal MRI findings in male patients was (59.6%), in female (40.4%,) the commonest abnormalities were cerebellopontine angle (CPA) space occupying lesions (SOL) (9.2%), cerebellar SOL (7.4%), 4th ventricle SOL (7.4%) and deep white matter ischemia (7.4%), most of patients with vascular problems were more than 50 years. In (35.4%) of patients, vertigo was less than one month duration, (50%) of which had abnormal MRI findings. Out of seven patients with normal MRI, 5 patients showed vascular lesion on magnetic resonance angiography (MRA). Conclusion: MRI remains important diagnostic tool for evaluation of vertigo and MRA is necessary when vascular origin is suspected.
Highlights
Vertigo is one of the most common complaints in neurology and otology
A total of 110 patients complained of vertigo wererecruited randomly from 15th of July 2007 to 10th of September 2008, they were referred to Magnetic Resonance Imaging (MRI) unit in Rizgary Teaching Hospital for MRI examination, additional information was collected through interviewing the patients in the radiology department prior to MRI examination
Baror et al did a study included 294 patients with vertigo and found abnormal MRI findings in only (26%) of cases [18]. This has a significant difference from this study result, this difference can be attributed to the fact that the patients in this study were referred to MRI examination after proper clinical assessment by specialist neurologists, neurosurgeons, ENT surgeons and internists and they took into consideration the cost of this investigation so they referred the patients on the base of high suspicion of pathological findings
Summary
Vertigo is one of the most common complaints in neurology and otology. Its prevalence increases with age but it’s often underestimated in the elderly [1]. The diagnosis and management of the patients complaining of acute vertigo are challenging endeavors for both neurologists and otologists. Objective: To determine the diagnostic yield of MRI in patients with vertigo and to Identify the most common causes. Patients and Methods: This observational study involved 110 vertigo complaining patients attending the MRI unit of Rizgary teaching hospital examined by 0.2 Tesla MRI between June 2007 and September 2008.Collected variables divided into Group 1 (normal MRI) and Group 2 (abnormal MRI) analysed and compared. In (35.4%) of patients, vertigo was less than one month duration, (50%) of which had abnormal MRI findings. Out of seven patients with normal MRI, 5 patients showed vascular lesion on magnetic resonance angiography (MRA). Conclusion: MRI remains important diagnostic tool for evaluation of vertigo and MRA is necessary when vascular origin is suspected.
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