Comparative study of carotiddoppler with contrast enhanced MRA in patients with stroke
Journal Title: Medpulse International Journal of Radiology - Year 2018, Vol 6, Issue 2
Abstract
Background: Cerebrovascular accident or stroke is one of the most common causes of death. Ultrasonography of the carotid arteries is an easily available, costeffective, noninvasive method of evaluation. Treatment of stroke depends on reaching the most accurate diagnosis. Accurate and prompt diagnosis is crucial because timely and appropriate therapy can significantly reduce the risk of stroke and long term sequelae. Several modalities of investigation are available to determine carotid arterystatus. Aim: The purpose of this study is to compare the diagnostic value of extracranial carotid and vertebral artery Doppler and Magnetic Resonance Angiography for the diagnosis of carotid artery pathology in patients with stroke. The principal appealing points in favor of sonography are a patient comfort, accuracy, and lack of risk. MR Angiography produces a reproducible three dimensional image of carotid bifurcation with good sensitivity for high grade stenosis. Materials, and Methods: After taking consent, 50 patients presenting with focal neurological deficit underwent co, or Doppler and Gadolinium enhanced MRA examination of the carotid and vertebral arteries at Department Of Radiology, Meenakshi Medical College, Kancheepuram with the help of VOLUSON 730 [WIPRO GE ultrasound machine] with 612 MHz linear array High Definition[HD] probe and 1.5 TESLA MRI. Results: The highest incidence of stroke was found in the age group of 50 70 years with male population commonly affected. The various risk factors include a family history of stroke, hypertension and diabetes mellitus. Total pathologies were most commonly found on the right side. The most common site for the atheromatous plaque was a carotid bifurcation. Grading of stenosis was done based on the NASCET criteria and the findings of Doppler and MRA were compared. MRA had a better role than Doppler for detecting 8099% stenosis. Conclusion: Colour Doppler examination is a noninvasive, economic, safe, reproducible and less time consuming method of demonstrating the cause of cerebrovascular insufficiency in the extracranial carotid artery system and will guide in instituting the treatment. Doppler has a better role in the evaluation of the morphology of the stenosis particularly plaque morphology and estimating the degree of stenosis.
Authors and Affiliations
Venkateshwaran A, Shereen Chidhara
Keywords
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- EP ID EP533392
- DOI 10.26611/1013623
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