Radiology, Vol 147, 823-827, Copyright © 1983 by Radiological Society of North America

ARTICLES

Duplex ultrasound scanning of the carotid arteries with velocity spectrum analysis

KE Garth, BA Carroll, FG Sommer and DA Oppenheimer

Duplex ultrasound examination of the carotid arteries using high- resolution realtime imaging and pulsed Doppler flow measurements with velocity spectrum analysis was performed on a series of 50 consecutive patients (100 vessels), and findings were compared with findings of conventional carotid arteriography. The criteria for an abnormal duplex examination included: a velocity ratio of 1.5 or more (ratio of the maximum internal carotid artery [ICA] flow velocity to the maximum common carotid artery flow velocity); turbulence, as indicated by an ICA velocity spectral width of 40 cm per second or more; visible plaque that produced an ICA stenosis of 50% or more; a maximum ICA velocity of 100 cm per second or more; and inability to detect ICA flow. A flow- limiting stenosis was defined arteriographically as a 50% or greater stenosis of the diameter of the arterial lumen. The velocity ratio was the best single duplex criterion, with an overall accuracy of 88%. The sensitivity or specificity of the duplex examination was as high as 97%, depending on the number of duplex criteria that were abnormal.

This article has been cited by other articles:

				G. M. Hathout, J. R. Fink, S. M. El-Saden, and E. G. Grant Sonographic NASCET Index: A New Doppler Parameter for Assessment of Internal Carotid Artery Stenosis AJNR Am. J. Neuroradiol., January 1, 2005; 26(1): 68 - 75. [Abstract] [Full Text] [PDF]

				G. M Hathout, M. J. Duh, and S. M. El-Saden Accuracy of Contrast-Enhanced MR Angiography in Predicting Angiographic Stenosis of the Internal Carotid Artery: Linear Regression Analysis AJNR Am. J. Neuroradiol., October 1, 2003; 24(9): 1747 - 1756. [Abstract] [Full Text] [PDF]

				W. W. M. Lam, S. S. Y. Ho, S. F. Leung, K. S. Wong, and C. Metreweli Cerebral Blood Flow Measurement by Color Velocity Imaging in Radiation-Induced Carotid Stenosis J. Ultrasound Med., October 1, 2003; 22(10): 1055 - 1060. [Abstract] [Full Text] [PDF]

				M. Schillinger, M. Exner, W. Mlekusch, H. Rumpold, R. Ahmadi, S. Sabeti, W. Lang, O. Wagner, and E. Minar Acute-Phase Response after Stent Implantation in the Carotid Artery: Association with 6-month In-Stent Restenosis Radiology, May 1, 2003; 227(2): 516 - 521. [Abstract] [Full Text] [PDF]

				M. Forsting and I. Wanke Editorial Comment--Funeral for a Friend Stroke, May 1, 2003; 34(5): 1331 - 1332. [Full Text] [PDF]

				E. B. Spencer, D. H. Sheafor, B. S. Hertzberg, J. D. Bowie, R. C. Nelson, B. A. Carroll, and M. A. Kliewer Nonstenotic Internal Carotid Arteries: Effects of Age and Blood Pressure at the Time of Scanning on Doppler US Velocity Measurements Radiology, July 1, 2001; 220(1): 174 - 178. [Abstract] [Full Text] [PDF]

				V. S. Lee, B. S. Hertzberg, M. J. Workman, T. P. Smith, M. A. Kliewer, D. M. DeLong, and B. A. Carroll Variability of Doppler US Measurements along the Common Carotid Artery: Effects on Estimates of Internal Carotid Arterial Stenosis in Patients with Angiographically Proved Disease Radiology, February 1, 2000; 214(2): 387 - 392. [Abstract] [Full Text]

				E. G. Grant, A. J. Duerinckx, S. M. El Saden, M. L. Melany, G. M. Hathout, P. T. Zimmerman, A. K. Marumoto, S. N. Cohen, and J. D. Baker Ability to Use Duplex US to Quantify Internal Carotid Arterial Stenoses: Fact or Fiction?1 Radiology, January 1, 2000; 214(1): 247 - 252. [Abstract] [Full Text]

				G. E. Kim, Y. P. Cho, T. W. Kwon, H. S. Kim, H. S. Hong, and M. C. Lee B-mode Ultrasound Imaging in Symptomatic Internal Carotid Artery Stenosis: Correlation with Clinical and Operative Findings Vascular and Endovascular Surgery, November 1, 1999; 33(6): 611 - 616. [Abstract] [PDF]

				V. S. Lee, B. S. Hertzberg, M. A. Kliewer, and B. A. Carroll Assessment of Stenosis: Implications of Variability of Doppler Measurements in Normal-appearing Carotid Arteries Radiology, August 1, 1999; 212(2): 493 - 498. [Abstract] [Full Text]

				P. L. Allan, P. I. Mowbray, A. J. Lee, and F. G. R. Fowkes Relationship Between Carotid Intima-Media Thickness and Symptomatic and Asymptomatic Peripheral Arterial Disease: The Edinburgh Artery Study Stroke, February 1, 1997; 28(2): 348 - 353. [Abstract] [Full Text]

				P. A. Cardullo, B. S. Cutler, and H. B. Wheeler Detection of Carotid Artery Disease by Duplex Ultrasound Journal of Diagnostic Medical Sonography, March 1, 1986; 2(2): 63 - 73. [Abstract] [PDF]

				H. W. Poehlmann and L. R. Bigongiari An Introduction to Carotid Duplex Sonography Journal of Diagnostic Medical Sonography, January 1, 1986; 2(1): 2 - 11. [Abstract] [PDF]

				D. Walker Carotid Duplex Sonography in Patients Undergoing Abdominal or Peripheral Vascular Surgery: A Preliminary Study Journal of Diagnostic Medical Sonography, November 1, 1985; 1(6): 255 - 260. [Abstract] [PDF]