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頁籤選單縮合
題 名 | Magnetic Resonance Angiography and Doppler Scanning for Detecting Atherosclerotic Renal Artery Stenosis=門診病人腎動脈狹窄之偵測-磁振血管攝影或杜卜勒掃描 |
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作 者 | 吳義勇; 沈書慧; 王信凱; 曾修山; 李潤川; 吳肖琪; | 書刊名 | Journal of the Chinese Medical Association |
卷 期 | 73:6 2010.06[民99.06] |
頁 次 | 頁300-307+CA53 |
關鍵詞 | 杜卜勒掃描; 磁振血管攝影; 腎動脈狹窄; Doppler scanning; Magnetic resonance angiography; Renal artery stenosis; |
語 文 | 英文(English) |
英文摘要 | Background: Atherosclerotic renal artery stenosis (ARAS) is a progressive but potentially reversible chronic kidney disease. Although the high sensitivity and specificity of renal Doppler scanning (RDS) for ARAS has been reported in western countries, ARAS has not been detected by RDS. This study used magnetic resonance angiography (MRA) to evaluate the sensitivity and specificity of RDS for detecting ARAS among outpatients at a nephrology clinic, and to calculate the degree of underestimation of ARAS by RDS. Methods: A total of 257 outpatients, aged > 50 years were examined for ARAS by RDS and MRA. Results: Thirty-seven (14.4%) and 139 (54.1%) of 257 patients had stenosis detected by RDS and MRA, respectively. Among the 220 patients whose RDS results were negative, MRA detected stenosis in 111 (50.45%). Multivariate logistic regression analysis showed that age >65 years, duration of smoking, coronary artery disease, and serum creatinine levels >354μmol/L (4 mg/dL) were significant and independent factors that influenced ARAS in patients with negative results by RDS. Conclusion: RDS might still be the diagnostic procedure of choice for screening outpatients for ARAS because it is inexpensive, convenient, able to detect severity, and avoids the use of contrast media. When RDS is negative in aged people who have smoked longer than 20 years, with coronary artery disease or serum creatinine > 4 mg/dL, MRA is recommended for further evaluation of ARAS. |
本系統中英文摘要資訊取自各篇刊載內容。