https://scholars.lib.ntu.edu.tw/handle/123456789/81368| Title: | 臨床非侵入式動脈阻抗之量測技術研發 Clinical Non-invasive Ar ter ial Impedance Mesurement Technique |
Authors: | 邵耀華 | Keywords: | 非侵入式;超音波;動脈阻抗;In this study;a non-invasive arterial impedance measurement technique is developed. Since the vascular impedance describes the spectral relationship of blood pressure and flow;it is an important index for vascular load downstream. By combining the ultrasound Doppler and tonometry pressure transducer;the vascular impedance can be calculated. Since the central artery is nearly elastic;the blood pressure is directly related to the change of diameter. For the peripheral arteries;the palpating pressure is recorded to account for the vascular visco-elasticity. Vascular impedance was demonstrated at the abdominal aorta;common carotid artery and peripheries. We found the abnormal side of stroke patients with one-side occlusion had a higher mean resistance than the normal side. In patients with one-side hemorrhagic infarction;both of their CCA impedance increased due to higher afterload. The hypertensive patients showed consistent higher arterial impedance than normal from the central to peripheries.;Non-invasive;Ultrasound;Vascular impedance | Issue Date: | 31-Jul-1999 | Publisher: | 臺北市：國立臺灣大學應用力學研究所 | URI: | http://ntur.lib.ntu.edu.tw//handle/246246/29686 | Other Identifiers: | 882314B002200M08 | Rights: | 國立臺灣大學應用力學研究所 |
| Appears in Collections: | 應用力學研究所 |
| File | Description | Size | Format | |
|---|---|---|---|---|
| 882314B002200M08.pdf | 903.47 kB | Adobe PDF | View/Open |
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