Hemispheric symptoms and carotid plaque echomorphology

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Presentation transcript:

Hemispheric symptoms and carotid plaque echomorphology Michael M. Sabetai, MD, Thomas J. Tegos, MD, Andrew N. Nicolaides, MS, FRCS, Tarek S. El-Atrozy, MD, Surinder Dhanjil, AVT, RVT, MSc, Maura Griffin, DMU, MSc, Gianni Belcaro, MD, PhD, George Geroulakos, MD, PhD, FRCS Journal of Vascular Surgery Volume 31, Issue 1, Pages 39-49 (January 2000) DOI: 10.1016/S0741-5214(00)70066-8 Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 1 Hypoechoic plaque (outlined ) with the near and far wall common carotid artery adventitia of similar brightness and the time-gain compensation curve gently sloping but vertical through the vessel lumen (arrowheads ). Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 2 Hypoechoic plaque (gray scale median = 0) with the histogram of the gray tone frequency distribution of the pixels in the selected area (plaque) of the image. The colored image is used as a guide to outline the area of interest. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 3 Hyperechoic plaque (gray scale median = 56) with the histogram of the gray tone frequency distribution of the pixels in the selected area (plaque) of the image. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 4 Error bars for the gray scale median in asymptomatic and symptomatic plaques. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 5 Error bars for the degree of stenosis in asymptomatic and symptomatic plaques. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 6 Error bars for the gray scale median in the four groups of plaques. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 7 Error bars for the degree of stenosis in the four groups of plaques. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 8 Classification of ultrasonic carotid plaque images, which distinguishes echodensity from texture. Journal of Vascular Surgery 2000 31, 39-49DOI: (10.1016/S0741-5214(00)70066-8) Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions