Potential relevance of low-intensity microembolic signals by TCD monitoring
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : G. Telman • E. Sprecher • E. Kouperberg
- چاپ و سال / کشور: 2010
Description
The significance of low-intensity microembolic signals (MES), as well as their relationship with high-intensity MES, has not yet been studied. We monitored MES by TCD in 256 arteries of 229 patients with carotid stenosis. All microemboli were detected automatically without a preliminary set threshold. For those 110 patients who evidenced any emboli, the correlation between the number of high- and low-intensity MES was r = 0.50, p\0.0001. A statistically significant relationship between both types of MES was found, with a degree of association of 0.42, as assessed by Cohen’s kappa. Later occurrence of high-intensity MES based on early lowintensity MES was statistically significant, with a chisquare p = 0.0006 and a degree of association of 0.24, as assessed by Cohen’s kappa. There is a significant relationship between low- and high-intensity MES, thereby indicating that many MES routinely rejected because of their low intensity are real.
Neurol Sci (2011) 32:107–111 DOI 10.1007/s10072-010-0429-8 Received: 1 July 2009 / Accepted: 10 September 2010 / Published online: 16 October 2010
