منابع مشابه
Particle - laden tubeless siphon
A tubeless siphon was created by sucking a 1% aqueous Polyox† solution laden with particles from a beaker into a cylinder by moving a piston. The piston speed and particle concentration were varied. At very high rates of withdrawal, all the liquid could be removed before the siphon broke. In this case, the beaker was completely cleaned without a trace of liquid. The addition of small concentrat...
متن کاملCalcification of the carotid siphon.
CALCIFICATION of the internal carotid artery in the region of the cavernous sinus is an extremely common radiologic finding.' Although it is the only readily available laboratory criterion of cerebrovascular disease its significance has never been determined by combined clinical, radiologic, and pathologic studies. Whether the arterial changes in this region, which we shall refer to as the siph...
متن کاملPrognosis of carotid siphon stenosis.
Prognosis of Carotid Siphon Stenosis To the Editor: In their interesting paper, Wechsler et al confirmed that siphon stenosis carries a poor prognosis for life, as one-third of their patients were dead at the end of a 51-month follow-up. In a previous study involving 15 patients with siphon stenosis of > 30% (without proximal atherosclerosis of equal or greater severity), we also found a high m...
متن کاملResolving siphon stenosis following endarterectomy.
Tandem arteriosclerotic lesions of the carotid sinus and siphon increase the risks of carotid endarterectomy; when the siphon is severely stenotic, a microvascular bypass may be the preferable procedure. Two patients, each with severe siphon stenosis and significant sinus lesions, however, were subjected to carotid endarterectomy as their initial surgical procedure. The postoperative arteriogra...
متن کاملPrognosis of Carotid Siphon Stenosis
Prognosis of Carotid Siphon Stenosis To the Editor: In their interesting paper, Wechsler et al confirmed that siphon stenosis carries a poor prognosis for life, as one-third of their patients were dead at the end of a 51-month follow-up. In a previous study involving 15 patients with siphon stenosis of > 30% (without proximal atherosclerosis of equal or greater severity), we also found a high m...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1879
ISSN: 0036-8733
DOI: 10.1038/scientificamerican04121879-2717bsupp