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뇌졸중 위험인자를 가진 어지럼 환자에서의 확산강조 자기공명영상

Other Titles
 Diffusion - weighted Imaging in Isolated Vertigo Patients Having Risk Factors for Stroke 
Authors
 강형구 ; 윤유상 ; 김승호 ; 구홍두 ; 정상원 ; 이경룡 ; 박인철 ; 이진희 
Citation
 Journal of the Korean Society of Emergency Medicine (대한응급의학회지), Vol.12(4) : 439~446, 2001 
Journal Title
 Journal of the Korean Society of Emergency Medicine (대한응급의학회지) 
ISSN
 1226-4334 
Issue Date
2001
Abstract
Background: The management of vertiginous patients is a great challenge to emergency physicians. We evaluated the diagnostic value of a diffusion-weighted image (DWI) in differentiating central vertigo from the peripheral vertigo in patients who presented no neurological symptoms other than risk factors for stroke. Methods: From March 2000 to February 2001, we retrospectively analyzed the cases of 68 patients who visited the emergency department with symptoms of isolated vertigo and who had risk factors for stroke. DWIs, computed tomograms (CT), and medical records were reviewed, and the final diagnose, the DWIs and the CT readings, the risk factors for stroke, and the time it took waiting for a DWI or CT scan were analyzed. Results: Of the 68 patients, 21 (30.8%) had central vertigo: 15 vertebrobasilar transient ischemic attacks (VB-TIA), 4 brain stem infarctions, 1 cerebellar infarction, and 1 cerebellopeduncular infarction. The DWI showed a 28.6% sensitivity, a 97.9% specificity, and an 85.7% positive predictive value in diagnosing central vertigo. It also had a 100% sensitivity in detecting infarctions. Conclusion: A DWI had a comparable sensitivity to MRI in detecting central vertigo and small, but potentially, lethal infarctions in our patient population. We recommend clinical application of DWI in the emergency department evaluation of isolated vertigo patients with risk factors for stroke.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/142830
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Emergency Medicine
Yonsei Authors
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