INTERVENTIONAL RADIOLOGY

Intravascular Ultrasound

Dec 3, 2016 by in INTERVENTIONAL RADIOLOGY Comments Off on Intravascular Ultrasound

Fig. 8.1 Ultrasound waves are generated perpendicular to the IVUS catheter (Courtesy of Boston Scientific) There are currently two different types of IVUS catheter designs; solid state and rotational and…

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Fractional Flow Reserve

Dec 3, 2016 by in INTERVENTIONAL RADIOLOGY Comments Off on Fractional Flow Reserve

Where Q=flow, μ = blood viscosity, L= length stenosis, and Aa= cross-sectional area. Moreover, as blood flow converges towards a stenosis a trans-lesion pressure gradient is formed as denoted in…

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