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 transcript:

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 524-530 (March 1993) DOI: 10.1016/0741-5214(93)90153-D Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 1 Typical Doppler wave form in prestenotic region of heat-shrink tubing. Journal of Vascular Surgery 1993 17, 524-530DOI: (10.1016/0741-5214(93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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 1993 17, 524-530DOI: (10.1016/0741-5214(93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 3 Relationship between Doppler-derived percentage stenosis and true percentage stenosis (concentric and eccentric combined). Derived percentage stenosis = 100. Journal of Vascular Surgery 1993 17, 524-530DOI: (10.1016/0741-5214(93)90153-D) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions