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Comparison of extracranial artery stenosis and cerebral blood flow, assessed by quantitative magnetic resonance, using digital subtraction angiography as the reference standard
Abstract: Extracranial arteriosclerosis usually indicates a high risk of ischemic stroke. In the past, a clinical decision following diagnosis was dependent on the percentage of vessel stenosis determined by an invasive technique. We aimed to develop a quantitative magnetic resonance (QMR) technique to evaluate artery structure and cerebral hemodynamics noninvasively. QMR and digital subtraction angiography (DSA) were performed in 67 patients with suspected cerebral vascular disease at our hospital. Accuracy, sensitivity, positive predictive values (PPVs), negative predictive values (NPVs), and Pearson correlation coeffic...
Source: Medicine - November 1, 2016 Category: Internal Medicine Tags: Research Article: Diagnostic Accuracy Study Source Type: research

Sleep Problems May Hint At Future Heart Disease Risk
By Kathryn Doyle (Reuters Health) - Adults who get too much or too little sleep may have the beginnings of “hardening" of the arteries, which can be an early sign of heart disease, according to a new study. “Many people, up to one third or one fourth of the general population, suffer from inadequate sleep – either insufficient duration of sleep or poor quality of sleep,” said co-lead author Dr. Chan-Won Kim of Kangbuk Samsung Hospital of Sungkyunkwan University School of Medicine in Seoul, South Korea. Several studies have linked inadequate sleep with an increased risk of heart attack and stroke, bu...
Source: Healthy Living - The Huffington Post - September 10, 2015 Category: Consumer Health News Source Type: news