1[1]North American Symptomatic Carotid Endarterectomy Trial Collaborators.Beneficial effect of carotid endarterectomy in symptomatic patients with high-grade carotid stenosis.N Engl J Med,1991,325:445-453.
2[2]European Carotid Surgery Trialists ' Collaborative Group.MRC European Carotid Surgery Trial:interim results for symptomatic patients with severe (70-99%) or with mild(0-29%) carotid stenosis.Lancet,1991,337:1235-1243.
3[3]Executive Committee for the Asymptomatic Carotid Atherosclerosis Study.Endarterectomy for asymptomatic carotid artery stenosis.JAMA,1995,273:1421-1428.
4[4]Carpenter JP,Lexa FJ,Davis JT.Determination of sixty percent or greater carotid artery stenosis by duplex Doppler ultrasonography.J Vasc Surg,1995,22:697-703.
5[5]Blackshear WM,Phillips DJ,Thiele BL,et al.Detection of carotid occlusive disease by ultrasonic imaging and pulsed Doppler spectrum analysis.Surgery,1979,86:698-706.
6[6]Bluth EI,Stavros AT,Marich KW,et al.Carotid duplex sonography:a multicenter recommendation for standardized imaging and Doppler criteria.Radiographics,1988,8:487-506.
7[7]Zierler RE,Kohler TR,Strandness DE Jr.Duplex scanning of normal or minimally diseased carotid arteries:correlation with arteriography and clinical outcome.J Vasc Surg,1990,12:447-455.
8[8]Zbornikova V,Lassvik C,Johansson I.Prospective evaluation of the accuracy of duplex scanning with spectral analysis in carotid artery disease.Clin Physiol,1985,5:257-269.
9[9]Corriveau MM,Johnston KW.Interobserver variability of carotid Doppler peak velocity measurements among technologists in an ICAVL-accredited vascular laboratory.J Vasc Surg,2004,39:735-741.
10[10]Moneta GL,Edwards JM,Chitwood RW,et al.Correlation of North American Symptomatic Carotid Endarterectomy Trial (NASCET) angiographic definition of 70% to 99% internal carotid artery stenosis with duplex scanning.J Vasc Surg,1993,17:152-159.
