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頁籤選單縮合
題 名 | Noninvasive Evaluation of Vertebral Arteries in Lateral Medullary Infarction=外側延腦梗塞之非侵犯性脊椎動脈評估 |
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作 者 | 傅維仁; 王淑芬; 梅聖年; | 書刊名 | Journal of Medical Ultrasound |
卷 期 | 6:3 1998.09[民87.09] |
頁 次 | 頁137-142 |
分類號 | 415.81 |
關鍵詞 | 延腦梗塞; 非侵犯性脊椎動脈; Vertebral arteries; Lateral medullary infarction; Wallenberg's syndrome; Ultrasound; |
語 文 | 英文(English) |
英文摘要 | Background: This study was set up to evaluate the application of noninvasive color-coded duplex scanning in the investigation of vertebral arteries in patients with Wallenberg's syndrome. Materials and Methods: The vertebral arteries of 25 patients with lateral medullary infarction were studied using color-coded duplex sonography. Angiography and magnetic resonance imaging were performed and correlated with results of color-coded duplex imaging in seven patients. Results: Twelve vessels in 12 patients were shown to have abnormal flow patterns by color-coded duplex evaluation. Angiographic correlation was available for four patients in whom ultrasound and clinical presentations suggested dissection of the extracranial vertebral artery. Two patients showed complete occlusion of the vertebral artery at the distal pretransverse segment and the other two showed irregular stenosis of the vertebral artery at the intertransverse segment. In another three patents, the ultrasound findings correlated well with magnetic resonance imaging study. These patients were considered to have occlusion of the extracranial vertebral artery at its origin on the basis of the ultrasound findings. The four dissected vertebral arteries had returned to normal on follow-up studies. Conclusion: Although all noninvasive techniques still have limitations, ultrasound remains a valuable diagnostic modality in the initial and serial evaluation of posterior circulation of patients suffering from lateral medullary infarction. |
本系統中英文摘要資訊取自各篇刊載內容。