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Accuracy and reproducibility of duplex ultrasound imaging in a phantom model of femoral artery stenosis  Mark R. Whyman, FRCS, Peter R. Hoskins, PhD,

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Presentation on theme: "Accuracy and reproducibility of duplex ultrasound imaging in a phantom model of femoral artery stenosis  Mark R. Whyman, FRCS, Peter R. Hoskins, PhD,"— Presentation transcript:

1 Accuracy and reproducibility of duplex ultrasound imaging in a phantom model of femoral artery stenosis  Mark R. Whyman, FRCS, Peter R. Hoskins, PhD, Gillian C. Leng, MBChB, Paul L. Allan, FRCR, Peter T. Donnan, MSc, C.Vaughan Ruckley, MCh, F.Gerald R. Fowkes, FFPHM  Journal of Vascular Surgery  Volume 17, Issue 3, Pages (March 1993) DOI: / (93)90153-D Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 Typical Doppler wave form in prestenotic region of heat-shrink tubing. Journal of Vascular Surgery  , DOI: ( / (93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Relationship between mean of VR values (±2 SD) of three observers and mean of percentage diameter reduction of concentric and eccentric stenoses combined. R2 = 0.996, where R2 is measure of fit of regression line to data. R2 = 1 represents perfect fit. Journal of Vascular Surgery  , DOI: ( / (93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 Relationship between Doppler-derived percentage stenosis and true percentage stenosis (concentric and eccentric combined). Derived percentage stenosis = 100. Journal of Vascular Surgery  , DOI: ( / (93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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