caa a22 4500 465783775 CHVBK 20180323112002.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02441971 doi (NATIONALLICENCE)springer-10.1007/BF02441971 Portable directional ultrasonic Doppler blood velocimeter for ambulatory use [Elektronische Daten] [N. Dahnoun, A. Thrush, J. Fothergill, D. Evans] The design of a portable directional Doppler velocimeter and of purposebuilt probes intended for monitoring blood flow in femorodistal bypass grafts in ambulatory patients are described. The design is based on a continuous-wave Doppler technique with quadrature demodulation. The Doppler unit was interfaced to a ‘personal-stereo' recorder to store the Doppler signals. The advantages and the limitations of recording flow in ambulatory patients are discussed. Examples of blood flow data collected from femorodistal bypass grafts are given. IFMBE, 1990 Ambulatory nationallicence Blood flow nationallicence Bypass grafts nationallicence Doppler nationallicence Instrument nationallicence Patient monitoring nationallicence Ultrasound nationallicence Walkman nationallicence Dahnoun N. Biomedical Laboratory, Department of Engineering, University of Leicester, LE1 7RH, Leicester, UK aut Thrush A. Department of Medical Physics & Clinical Engineering, Leicester Royal Infirmary, LE1 5WW, Leicester, UK aut Fothergill J. Biomedical Laboratory, Department of Engineering, University of Leicester, LE1 7RH, Leicester, UK aut Evans D. Department of Medical Physics & Clinical Engineering, Leicester Royal Infirmary, LE1 5WW, Leicester, UK aut Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/5(1990-09-01), 474-482 0140-0118 28:5<474 1990 28 11517 https://doi.org/10.1007/BF02441971 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02441971 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dahnoun N. Biomedical Laboratory, Department of Engineering, University of Leicester, LE1 7RH, Leicester, UK aut NATIONALLICENCE 700 1- Thrush A. Department of Medical Physics & Clinical Engineering, Leicester Royal Infirmary, LE1 5WW, Leicester, UK aut NATIONALLICENCE 700 1- Fothergill J. Biomedical Laboratory, Department of Engineering, University of Leicester, LE1 7RH, Leicester, UK aut NATIONALLICENCE 700 1- Evans D. Department of Medical Physics & Clinical Engineering, Leicester Royal Infirmary, LE1 5WW, Leicester, UK aut NATIONALLICENCE 773 0- Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/5(1990-09-01), 474-482 0140-0118 28:5<474 1990 28 11517 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer