Noninvasive Estimation of Pressure Changes Using 2-D Vector Velocity Ultrasound: An Experimental Study With In Vivo Examples

A noninvasive method for estimating intravascular pressure changes using 2-D vector velocity is presented. The method was first validated on computational fluid dynamic (CFD) data and with catheter measurements on phantoms. Hereafter, the method was tested in vivo at the carotid bifurcation and at t...

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Veröffentlicht in:	IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2018-05, Vol.65 (5), p.709-719
Hauptverfasser:	Olesen, Jacob Bjerring, Villagomez-Hoyos, Carlos Armando, Moller, Niclas Dechau, Ewertsen, Caroline, Hansen, Kristoffer Lindskov, Nielsen, Michael Bachmann, Bech, Bo, Lonn, Lars, Traberg, Marie Sand, Jensen, Jorgen Arendt
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Aperture imaging Bifurcations Blood Blood Flow Velocity - physiology Blood Pressure - physiology Blood Pressure Determination - methods Carotid Arteries - diagnostic imaging Carotid Arteries - physiology Carotid Stenosis - diagnostic imaging Carotid Stenosis - physiopathology Catheters Change detection Computational fluid dynamics Computer simulation Convective flow Finite element method Geometry Humans In vivo methods and tests Male medical ultrasound noninvasiv Peak pressure Phantoms Phantoms, Imaging Pressure drop pressure gradient Pressure gradients Signal Processing, Computer-Assisted Steady flow Systolic pressure Ultrasonic imaging Ultrasonic variables measurement Ultrasonography - instrumentation Ultrasonography - methods Valves Vascular Access Devices vector flow estimation Viscosity
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