5Hoksbergen AW, Legemate DA, Csiba L, et al. Absent collateral function of the circle of Willis as risk factor for ischemic stroke[J].Cerebrovasc Dis, 2003,16(3): 191-198.
6Muller M, Hermes M, Bruckmann H, et al. Transcranial Doppler ultrasound in the evaluation of collateral blood flow in patients with internal carotid artery occlusion: correlation with cerebral angiography[J] . Am J Neuroradiol, 1995,16(1) :195-202.
7Gossetti B, Martinelli O, Guerricchio R, et al. Transcranial Doppler in 178 patients before, during, and after carotid endarterectomy[J]. J Neuroimaging, 1997,7(4) :213-216.
8Muller M, Behnke S, Walter P. Cerebrovascular resistance and blood flow velocity changes after carotid endarterectomy[J]. Vasa, 1999,28(4) :279-282.
9Blohme L, Pagani M, Parra-Hoyos H, et al. Changes in middle cerebral artery flow velocity and pulsatility index after carotid endarterectomy[J]. Eur J Vasc Surg, 1991,5(6):659-663.
10Dalman JE, Beenakkers IC, Moll FL, et al. Transcranial Doppler monitoring during carotid endarterectomy helps to identify patients at risk of postoperative hyperperfusion[J]. Eur J Vasc Endovasc Surg, 1999,18(3) :222-227.
4PIGNOLI P,TREMOLI E. Poli A InIMTal plus medial thickness of the arterial wall:A directmeasurement with ul- trasound imaging [J]. Circulation,1986,74:1 399 --1 406.
5FERRARA L A, MANCINI M. Celentano A Early changes of the arterial carotid wall in uncomplicated primary hyper- tensive patients study by ultrasound high-resolution B-modeimagin [J]. Arteriosclerthromb, 1994, 14:1 291 -- 1 296.
6MACMAHON S. Alcohol consumption and hypertension [J]. Hypertension,1987,9:111--121.