Ultrasound in Medicine and Biology
Volume 35, Issue 6 , Pages 949-954 , June 2009

Velocity Variability in Ultrasonic Doppler Examinations

  • Jean Hadlock

      Affiliations

    • Division of Vascular Surgery, University of Washington, Seattle, WA, USA
    • ,
  • Kirk W. Beach

      Affiliations

    • Division of Vascular Surgery, University of Washington, Seattle, WA, USA
    • Department of Bioengineering, University of Washington, Seattle, WA, USA
    • Corresponding Author InformationAddress correspondence to: Kirk W Beach, Emeritus Research Professor, Vascular Surgery and Bioengineering, Box 356021, University of Washington, Seattle, WA 98195.
    • ,
  • D.E. Strandness Vascular Laboratory Sonographers

      Affiliations

    • Division of Vascular Surgery, University of Washington, Seattle, WA, USA

Received 24 September 2008 ,Revised 12 December 2008 ,Accepted 16 December 2008.

References 

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  10. Ku DN, Giddens DP. Pulsatile flow in a model carotid bifurcation. Arteriosclerosis. 1983;3:31–39
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  12. Lally M, Johnston KW, Cobbold RS. Limitations in the accuracy of peak frequency measurements in the diagnosis of carotid disease. J Clin Ultrasound. 1984;12:403–409
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  14. Monahan KD, Leuenberger UA, Ray CA. Effect of repetitive hypoxic apneas on baroreflex function in humans. J Physiol. 2006;15:605–613
  15. Moneta GL, Edwards JM, Papanicolaou G, Hatsukami T, Taylor LM, Strandness DE, et al. Screening for asymptomatic internal carotid artery stenosis: Duplex criteria for discriminating 60% to 99% stenosis. J Vasc Surg. 1995;21:989–994
  16. Waaijer A, van Leeuwen MS, van der Worp HB, Verhagen HJ, Mali WP, Velthuis BK. Anatomic variations in the circle of Willis in patients with symptomatic carotid artery stenosis assessed with multidector row CT angiography. Cerebrovasc Dis. 2007;23:267–274
  17. Welsh LW, Welsh JJ, Lewin B, Dragonette JE. Incompetent circle of Willis and vertebrobasilar insufficiency. Ann Otol Rhinol Laryngol. 2003;1:657–664

PII: S0301-5629(08)00603-0

doi: 10.1016/j.ultrasmedbio.2008.12.012

Ultrasound in Medicine and Biology
Volume 35, Issue 6 , Pages 949-954 , June 2009

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