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- W2080762913 abstract "This study investigates the instationary flow field in human femoarl arteries. The flow fiel is measured before and after the implantaion of five different metal stent implants in elastic and scaled silicone models of femoral arteries. The pulsating flow field is investigated under physiological conditions within the silicone vessel. For the simulation of the physilogical hemodynamics a computer controlled pump for the reproducible generation of flow patterns and a fluid with flow properties similar to human blood is used. At significant positions distal, proximal and inside the stent dopplersonographic measurements are performed with stationary and pulsatile flow. Via fast fourier analysis the sampled doppler audio signal, gained from the ultrasound stereo output, is converted into velocity profiles and displayed as color coded 3D spectrograms. By subtracting the spectra of the unstented model of the stented models differential spectra are obtained and compared. These differential spectra are used for a semiquantitative analysis of the flow field change caused by stents and are easy to interpret for the examining physician." @default.
- W2080762913 created "2016-06-24" @default.
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- W2080762913 date "2004-04-28" @default.
- W2080762913 modified "2023-09-23" @default.
- W2080762913 title "Dopplersonographic analysis of the flow field in femoral arteries with stent implants" @default.
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- W2080762913 doi "https://doi.org/10.1117/12.536837" @default.
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