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Atherosclerotic Lesions in the Superficial Femoral Artery (SFA) Characterized with Velocity Ratios using Vector Velocity Ultrasound

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@article{299fa8472d9c42afa1287d379b609b11,
title = "Atherosclerotic Lesions in the Superficial Femoral Artery (SFA) Characterized with Velocity Ratios using Vector Velocity Ultrasound",
abstract = "Purpose: Atherosclerotic arteries are challenging to evaluate quantitatively using spectral Doppler ultrasound because of the turbulent flow conditions that occur in relation to the atherosclerotic stenoses. Vector velocity ultrasound is angle independent and provides flow information, which could potentially improve the diagnosis of arterial stenoses. The purpose of the study is to distinguish significant stenoses in the superficial femoral artery (> 50{\%} diameter reduction) from non-significant stenoses based on velocity ratios derived from the commercially available vector velocity ultrasound technique Vector Flow Imaging (VFI).Materials and Methods: Velocity ratios (intrastenotic blood flow velocity divided by pre- or poststenotic velocity) from a total of 16 atherosclerotic stenoses and plaques in the superficial femoral artery of 11 patients were obtained using VFI. The stenosis degree, expressed as percentage diameter reduction of the artery, was determined from digital subtraction angiography and compared to the velocity ratios.Results: A velocity ratio of 2.5 was found to distinguish clinically relevant stenoses with>50{\%} diameter reduction from clinically non-relevant stenoses with<50{\%} diameter reduction and the difference was statistically significant.Conclusion: The study indicates that VFI is a potential future tool for the evaluation of arterial stenoses.",
author = "Hansen, {Peter M{\o}ller} and Hansen, {Kristoffer Lindskov} and Pedersen, {Mads M{\o}ller} and Theis Lange and Lars L{\"o}nn and Jensen, {J{\o}rgen Arendt} and Nielsen, {Michael Bachmann}",
year = "2018",
month = "9",
doi = "10.1055/a-0637-2437",
language = "English",
volume = "4",
pages = "E79--E84",
journal = "Ultrasound International Open",
issn = "2199-7152",
publisher = "GeorgThieme Verlag",
number = "3",

}

RIS

TY - JOUR

T1 - Atherosclerotic Lesions in the Superficial Femoral Artery (SFA) Characterized with Velocity Ratios using Vector Velocity Ultrasound

AU - Hansen, Peter Møller

AU - Hansen, Kristoffer Lindskov

AU - Pedersen, Mads Møller

AU - Lange, Theis

AU - Lönn, Lars

AU - Jensen, Jørgen Arendt

AU - Nielsen, Michael Bachmann

PY - 2018/9

Y1 - 2018/9

N2 - Purpose: Atherosclerotic arteries are challenging to evaluate quantitatively using spectral Doppler ultrasound because of the turbulent flow conditions that occur in relation to the atherosclerotic stenoses. Vector velocity ultrasound is angle independent and provides flow information, which could potentially improve the diagnosis of arterial stenoses. The purpose of the study is to distinguish significant stenoses in the superficial femoral artery (> 50% diameter reduction) from non-significant stenoses based on velocity ratios derived from the commercially available vector velocity ultrasound technique Vector Flow Imaging (VFI).Materials and Methods: Velocity ratios (intrastenotic blood flow velocity divided by pre- or poststenotic velocity) from a total of 16 atherosclerotic stenoses and plaques in the superficial femoral artery of 11 patients were obtained using VFI. The stenosis degree, expressed as percentage diameter reduction of the artery, was determined from digital subtraction angiography and compared to the velocity ratios.Results: A velocity ratio of 2.5 was found to distinguish clinically relevant stenoses with>50% diameter reduction from clinically non-relevant stenoses with<50% diameter reduction and the difference was statistically significant.Conclusion: The study indicates that VFI is a potential future tool for the evaluation of arterial stenoses.

AB - Purpose: Atherosclerotic arteries are challenging to evaluate quantitatively using spectral Doppler ultrasound because of the turbulent flow conditions that occur in relation to the atherosclerotic stenoses. Vector velocity ultrasound is angle independent and provides flow information, which could potentially improve the diagnosis of arterial stenoses. The purpose of the study is to distinguish significant stenoses in the superficial femoral artery (> 50% diameter reduction) from non-significant stenoses based on velocity ratios derived from the commercially available vector velocity ultrasound technique Vector Flow Imaging (VFI).Materials and Methods: Velocity ratios (intrastenotic blood flow velocity divided by pre- or poststenotic velocity) from a total of 16 atherosclerotic stenoses and plaques in the superficial femoral artery of 11 patients were obtained using VFI. The stenosis degree, expressed as percentage diameter reduction of the artery, was determined from digital subtraction angiography and compared to the velocity ratios.Results: A velocity ratio of 2.5 was found to distinguish clinically relevant stenoses with>50% diameter reduction from clinically non-relevant stenoses with<50% diameter reduction and the difference was statistically significant.Conclusion: The study indicates that VFI is a potential future tool for the evaluation of arterial stenoses.

U2 - 10.1055/a-0637-2437

DO - 10.1055/a-0637-2437

M3 - Journal article

VL - 4

SP - E79-E84

JO - Ultrasound International Open

JF - Ultrasound International Open

SN - 2199-7152

IS - 3

ER -

ID: 55516111