منابع مشابه
Physiology & Relevance of Cerebrovascular Reserve
Background: In addition to cerebral hemodynamics in a resting condition also the cerebral hemodynamics can be investigated after a challenge. This challenge can also be called stress-test and the parameter that is measured is often called cerebrovascular reserve or cerebrovascular reactivity. To investigate the Cerebrovascular reserve two things are needed: first a measurement method that can q...
متن کاملCerebral blood flow and cerebrovascular reserve capacity: estimation by dynamic magnetic resonance imaging.
We have developed a new method for estimation of regional CBF (rCBF) and cerebrovascular reserve capacity on a pixel-by-pixel basis by means of dynamic magnetic resonance imaging (MRI). Thirteen healthy volunteers, 8 patients with occlusion and/or high grade stenosis of the internal carotid artery (ICA), and 2 patients with acute stroke underwent dynamic susceptibility-weighted contrast enhance...
متن کاملThree-minute blood flow index for assessment of cerebrovascular reserve.
Regional cerebral blood flow studies with xenon-133 are useful in the functional assessment of cerebrovascular diseases. Conventional models for cerebral blood flow calculation employ 11 minutes of data collection. However, in many circumstances it is not possible to maintain steady-state physiologic conditions for 11 minutes. We compared a monocompartmental model that requires only 3 minutes o...
متن کاملCerebrovascular reserve before and after vertebral artery angioplasty.
The selection of patients with severe vertebrobasilar artery stenosis for angioplasty is based mainly on clinical experience rather than on controlled data. We present a patient with severe vertebral artery stenosis in whom we could document the positive effect of angioplasty on posterior circulation hemodynamics by using transcranial Doppler sonography.
متن کاملDynamic estimation of three-dimensional cerebrovascular deformation
1 rotational angiography 2 Chong Zhang, a) Maria-Cruz Villa-Uriol, Mathieu De Craene, José Maŕıa Pozo, Juan 3 M. Macho, and Alejandro F. Frangi b) 4 Center for Computational Imaging & Simulation Technologies 5 in Biomedicine (CISTIB) Universitat Pompeu Fabra (UPF), 6 Networking Biomedical Research Center on Bioengineering, 7 Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, 8 Spain 9 Depart...
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ژورنال
عنوان ژورنال: General Reanimatology
سال: 2010
ISSN: 2411-7110,1813-9779
DOI: 10.15360/1813-9779-2010-6-39