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In vivo human comparison of intravascular ultrasonography and angiography  Marwan Tabbara, MD, Rodney White, MD, Douglas Cavaye, FRACS, George Kopchok,

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Presentation on theme: "In vivo human comparison of intravascular ultrasonography and angiography  Marwan Tabbara, MD, Rodney White, MD, Douglas Cavaye, FRACS, George Kopchok,"— Presentation transcript:

1 In vivo human comparison of intravascular ultrasonography and angiography 
Marwan Tabbara, MD, Rodney White, MD, Douglas Cavaye, FRACS, George Kopchok, BS  Journal of Vascular Surgery  Volume 14, Issue 4, Pages (October 1991) DOI: / (91)90243-N Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 Intravascular ultrasound image of human iliac artery by use of an 8F catheter. U, Ultrasound probe; single arrow, normal vessel wall; double arrow, soft plaque. Shadow a, is an artifact produced by a thin metalic wire along the long axis of the catheter. This can be used to orient the catheter in the vessel by noting its location when the catheter is inserted and carefully maintaining its position throughout the examination. Journal of Vascular Surgery  , DOI: ( / (91)90243-N) Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Intravascular ultrasound image of human iliac artery with use of an 8F catheter in iliac artery. Note calcific plaque (arrow) with complete attenuation of the signal beyond the lesion. Journal of Vascular Surgery  , DOI: ( / (91)90243-N) Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 Comparison of angiography and IUS in the common and external iliac arteries. A, normal lumen; B, severe stenosis in the external iliac artery; and C, normal vessel distal to the lesion. Note the three-layer appearance of the muscular artery wall in the normal arterial segment. Single arrows delineate a 77% luminal compromise in ultrasound image B. Double arrows identify the echolucent media in each figure. Journal of Vascular Surgery  , DOI: ( / (91)90243-N) Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5 Fig. 4 Comparison of ellipticity index and the number of images obtained. Note that 73% of the images have an ellipticity index value of 1.0 to 1.3. Journal of Vascular Surgery  , DOI: ( / (91)90243-N) Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

6 Fig. 5 Linear regression of luminal cross-sectional area (mm2) measured by IUS and luminal cross-sectional area calculated from angiography for the iliac artery segments. Y = x. (n = 29, r = 0.80, p < 0.05). Journal of Vascular Surgery  , DOI: ( / (91)90243-N) Copyright © 1991 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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