نتایج جستجو برای: hemodynamic changes

تعداد نتایج: 897037  

2017
Tumul Chowdhury Marshall Wilkinson Ronald B. Cappellani

Background: Hemodynamic perturbations can be anticipated in deep brain stimulation (DBS) surgery and may be attributed to multiple factors. Acute changes in hemodynamics may produce rare but severe complications such as intracranial bleeding, transient ischemic stroke and myocardium infarction. Therefore, this retrospective study attempts to determine the incidence of hemodynamic perturbances (...

Journal: :Biomedical optics express 2013
Takeaki Shimokawa Takashi Kosaka Okito Yamashita Nobuo Hiroe Takashi Amita Yoshihiro Inoue Masa-Aki Sato

Functional near-infrared spectroscopy (fNIRS) can non-invasively measure hemodynamic responses in the cerebral cortex with a portable apparatus. However, the observation signal in fNIRS measurements is contaminated by the artifact signal from the hemodynamic response in the scalp. In this paper, we propose a method to separate the signals from the cortex and the scalp by estimating both hemodyn...

Journal: :Revista Española de Enfermedades Digestivas 2020

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