نتایج جستجو برای: volume pulse
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The pulse oximetry plethysmographic signal resembles the peripheral arterial pressure waveform, and the degree of respiratory variation in the pulse oximetry wave is close to the degree of respiratory arterial pulse pressure variation. Thus, it is tempting to speculate that pulse oximetry can be used to assess preload responsiveness in mechanically ventilated patients. In this commentary we bri...
Assessment of vasomotor tone is essential in defining appropriate resuscitation strategies for the hypotensive patient. Although changes in mean arterial pressure to cardiac output define arterial resistance, resistance is only one component of vasomotor tone. Compliance is the other component. The reciprocal of compliance is arterial elastance (Ea). Importantly, dynamic Ea can be estimated by ...
Introduction: Recently, first examples of inner-volume-imaging and motion artifact suppression based on Parallel EXcitation (PEX) have been presented [1]. However, in most PEX based applications, 3D selectivity has been achieved by 2D spatially selective excitation combined with perpendicular 1D slice selective refocusing. Therefore, the necessity of multi pulse sequences and the limitation to ...
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