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일과성 허혈성 발작의 확산 강조 MR영상

Other Titles
 Diffusion Weighted MR Imaging of Transient Ischemic Attacks 
 정진일  ;  김동익  ;  허지회  ;  이병인  ;  이승익  ;  윤평호 
 Journal of the Korean Radiologist Society (대한방사선의학회지), Vol.43(1) : 17-23, 2000 
Journal Title
 Journal of the Korean Radiologist Society (대한방사선의학회지) 
Issue Date
Diffusion* ; Humans ; Infarction ; Ischemic Attack, Transient* ; Magnetic Resonance Imaging* ; Neurologic Manifestations ; Passive Cutaneous Anaphylaxis ; Pica ; Stroke ; Stroke, Lacunar
Magnetic resonance (MR) ; diffusion study ; Transient ischemic attack (TIA) ; Brain, ischemia
PURPOSE: To investigate the findings of diffusion-weighted MR imaging in patients with transient ischemic at-tacks (TIA). MATERIALS AND METHODS: Between August 1996 and June 1999, 41 TIA patients [M:F = 28:13, mean age 57 (range, 27 -75) years] with neurologic symptoms lasting less than 24 hours underwent diffusion-weighted MR imaging. The time interval between the onset of symptoms and MR examination was less than one week in 29 patients, from one week to one month in eight, and undetermined in four. Conventional MR and DWI were compared in terms of location of infarction and lesion size (<1 cm, 1 -3 cm, >3 cm), and we also determined the anatomical vascular territory of acute stroke lesions and possible etiologic mechanisms. RESULTS: The findings of DWI were normal in 24/41 patients (58.5%), while 15 (36.6%) showed acute ischemic lesions. The other two showed old lacunar infarcts. All acute and old DWI lesions were revealed by conven-tional MR imaging. Among the 15 acute stroke patients, seven had small vessel lacunar disease. In three pa-tients, the infarction was less than 1 cm in size. Six patients showed large vessel infarction in the territory of the MCA, PCA, and PICA; the size of this was less than 1 cm in three patients, 1 -3 cm in two, and more than 3 cm in one. In two patients, embolic infarction of cardiac origin in the territory of the MCA and AICA was diagnosed. CONCLUSION: The possible mechanism of TIA is still undetermined, but acute lesions revealed by DWI in TIA patients tend, in any case, to be small and multiple.
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Ik(김동익)
Lee, Byung In(이병인)
Heo, Ji Hoe(허지회) ORCID logo https://orcid.org/0000-0001-9898-3321
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