Variation in duplex peak systolic velocity measurement in a multi-site vascular service.
作者： P Normahani , M Aslam , G Martin , NJ Standfield , U Jaffer
关键词:
摘要: Objective:Duplex US (DUS) is increasingly utilised as a first-line investigation for the assessment of carotid disease. For clinical decision-making, DUS must be accurate and reproducible to ensure reliability. We aimed investigate variability in peak systolic velocity (PSV) measurement multi-site vascular network.Methods:DUS measurements PSV were taken from continuous pulsatile flow, generated by high fidelity phantom, 12 experienced scientists across four hospitals. Participants blinded actual value (50 cm/s).Results:We observed an average error 13.2% (± 8.3) 11.6% 7.5) waveforms, respectively. Measurements using waveform demonstrated statistically significant variation all hospitals; ((hospital/mean) A 43.9 cm/s, B 61.7 C 57.4 D 47.7 p=0.001). Further analysis 4 instrumentation-rela...
sagepub.com
sci-hub.se 参考文章(22)
Amer M. Johri, Michael H. Picard, John Newell, Jane E. Marshall, Mary Etta E. King, Judy Hung, Can a Teaching Intervention Reduce Interobserver Variability in LVEF Assessment: A Quality Control Exercise in the Echocardiography Lab Jacc-cardiovascular Imaging. ,vol. 4, pp. 821- 829 ,(2011) , 10.1016/J.JCMG.2011.06.004
A Halliday, S Byrd, M Emson, A Baxter, P Robless, Carotid duplex ultrasonography: importance of standardisation. Asymptomatic Carotid Surgery Trial Collaborators and Vascular Laboratories. International Angiology. ,vol. 17, pp. 248- 254 ,(1998)
H A Winter-Warnars, Y van der Graaf, W P Mali, Interobserver variation in duplex sonographic scanning in the femoropopliteal tract. Journal of Ultrasound in Medicine. ,vol. 15, pp. 421- 428 ,(1996) , 10.7863/JUM.1996.15.6.421
Kenneth Hoyt, Felix A. Hester, Randall L. Bell, Mark E. Lockhart, Michelle L. Robbin, Accuracy of Volumetric Flow Rate Measurements Journal of Ultrasound in Medicine. ,vol. 28, pp. 1511- 1518 ,(2009) , 10.7863/JUM.2009.28.11.1511
Paaladinesh Thavendiranathan, Zoran B. Popović, Scott D. Flamm, Arun Dahiya, Richard A. Grimm, Thomas H. Marwick, Improved Interobserver Variability and Accuracy of Echocardiographic Visual Left Ventricular Ejection Fraction Assessment through a Self-Directed Learning Program Using Cardiac Magnetic Resonance Images Journal of the American Society of Echocardiography. ,vol. 26, pp. 1267- 1273 ,(2013) , 10.1016/J.ECHO.2013.07.017
Dennis F. Bandyk, Interpretation pitfalls of vascular laboratory testing Seminars in Vascular Surgery. ,vol. 26, pp. 67- 71 ,(2013) , 10.1053/J.SEMVASCSURG.2013.11.004
Ted R. Kohler, Yves Langlois, Ghislaine O. Roederer, David J. Phillips, Kirk W. Beach, Jean Primozich, Ramona Lawrence, Stephen C. Nicholls, D.Eugene Strandness, Variability in measurement of specific parameters for carotid duplex examination. Ultrasound in Medicine and Biology. ,vol. 13, pp. 637- 642 ,(1987) , 10.1016/0301-5629(87)90061-5
Mark R. Whyman, Peter R. Hoskins, Gillian C. Leng, Paul L. Allan, Peter T. Donnan, C.Vaughan Ruckley, F.Gerald R. Fowkes, Accuracy and reproducibility of duplex ultrasound imaging in a phantom model of femoral artery stenosis. Journal of Vascular Surgery. ,vol. 17, pp. 524- 530 ,(1993) , 10.1016/0741-5214(93)90153-D
Aaron H Steinman, Jahangir Tavakkoli, Jerry G Myers, Richard S.C Cobbold, K.Wayne Johnston, Sources of error in maximum velocity estimation using linear phased-array Doppler systems with steady flow. Ultrasound in Medicine and Biology. ,vol. 27, pp. 655- 664 ,(2001) , 10.1016/S0301-5629(01)00352-0
Y. Sensier, T. Hartshorne, A. Thrush, S. Nydahl, A. Bolia, N.J.M. London, A prospective comparison of lower limb colour-coded duplex scanning with arteriography European Journal of Vascular and Endovascular Surgery. ,vol. 11, pp. 170- 175 ,(1996) , 10.1016/S1078-5884(96)80047-5