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Ultrasonic plaque character and outcome after lower limb angioplasty

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Presentation on theme: "Ultrasonic plaque character and outcome after lower limb angioplasty"— Presentation transcript:

1 Ultrasonic plaque character and outcome after lower limb angioplasty
Ganesh Ramaswami, MD, PhD, Thomas Tegos, MD, Andrew N. Nicolaides, MD, FRCS, Surinder Dhanjil, MS, RVT, Maura Griffin, MS, Aghiad Al-Kutoubi, MD, FRCR, Gianni Belcaro, MD, John Lewis, MD, FRCS, Robert Wilkins, MD, FRCR, Michael J. Davies, MD, FRCS  Journal of Vascular Surgery  Volume 29, Issue 1, Pages (January 1999) DOI: /S (99) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 Measurements made for each stenosis: A, thickness of anterior component of plaque (mm); B, thickness of posterior component of plaque (mm); C, minimal luminal diameter (MLD; mm); D, V2, velocity at site of stenosis (cm/s); V1, velocity proximal to stenosis (cm/sec); peak systolic velocity ratio (PSVR) = V2/V1. An increase in the PSVR of more than 2, in the follow-up period after angioplasty signified restenosis. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Gray-scale median (GSM) of a stenosis in the superficial femoral artery. The plaque was echolucent and had a GSM of 6. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 Gray-scale median (GSM) of a stenosis in the superficial femoral artery. The plaque was echogenic and had a GSM of 35. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5 Fig. 4 Stenosis in superficial femoral artery with a gray-scale median of 6 before angioplasty. Anterior plaque = 4.31 mm, minimal luminal diameter = 1.14 mm, and peak systolic velocity ratio = 2.85. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

6 Fig. 5 Stenosis shown in Fig 4 on day 1 postangioplasty. Anterior plaque = 1.32 mm (absolute reduction in thickness = 2.99 mm), minimal luminal diameter (MLD) = 5.02 mm (absolute increase in MLD = 3.88 mm), and peak systolic velocity ratio (PSVR) = 1.03 (percent decrease in PSVR = 64%). Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

7 Fig. 6 Stenosis in superficial femoral artery with a gray-scale median of 35 before angioplasty. Posterior plaque = 3.96 mm, minimal luminal diameter = 2.11 mm, and peak systolic velocity ratio = 2.46. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

8 Fig. 7 Stenosis shown in Fig 6 on day 1 postangioplasty. Posterior plaque = 3.91 mm (absolute reduction in thickness = 0.05 mm), minimal luminal diameter (MLD) = 3.69 mm (absolute increase in MLD = 1.58 mm) and peak systolic velocity ratio (PSVR) = 1.77 (percent decrease in PSVR = 28%). Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

9 Fig. 8 Relationship between plaque grey-scale median (GSM) and peak systolic velocity ratio (PSVR) in the postangioplasty period. Journal of Vascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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