Aortic Valve Stenosis Increases Helical Flow and Flow Complexity: A Study of Intra-Operative Cardiac Vector Flow Imaging

Kristoffer Lindskov Hansen; Hasse Møller-Sørensen; Jesper Kjaergaard; Maiken Brit Jensen; Jørgen Arendt Jensen; Michael Bachmann Nielsen

doi:10.1016/j.ultrasmedbio.2017.03.018

Aortic Valve Stenosis Increases Helical Flow and Flow Complexity: A Study of Intra-Operative Cardiac Vector Flow Imaging

Kristoffer Lindskov Hansen, Hasse Møller-Sørensen, Jesper Kjaergaard, Maiken Brit Jensen, Jørgen Arendt Jensen, Michael Bachmann Nielsen

Institut for Klinisk Medicin

26 Citationer (Scopus)

Abstract

Aortic valve stenosis alters blood flow in the ascending aorta. Using intra-operative vector flow imaging on the ascending aorta, secondary helical flow during peak systole and diastole, as well as flow complexity of primary flow during systole, were investigated in patients with normal, stenotic and replaced aortic valves. Peak systolic helical flow, diastolic helical flow and flow complexity during systole differed between the groups (p < 0.0001), and correlated to peak systolic velocity (R = 0.94, 0.87 and 0.88, respectively). The study indicates that aortic valve stenosis increases helical flow and flow complexity, which are measurable with vector flow imaging. For assessment of aortic stenosis and optimization of valve surgery, vector flow imaging may be useful.

Originalsprog	Engelsk
Tidsskrift	Ultrasound in Medicine & Biology
Vol/bind	43
Udgave nummer	8
Sider (fra-til)	1607-1617
ISSN	0301-5629
DOI	https://doi.org/10.1016/j.ultrasmedbio.2017.03.018
Status	Udgivet - aug. 2017

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10.1016/j.ultrasmedbio.2017.03.018

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title = "Aortic Valve Stenosis Increases Helical Flow and Flow Complexity: A Study of Intra-Operative Cardiac Vector Flow Imaging",

abstract = "Aortic valve stenosis alters blood flow in the ascending aorta. Using intra-operative vector flow imaging on the ascending aorta, secondary helical flow during peak systole and diastole, as well as flow complexity of primary flow during systole, were investigated in patients with normal, stenotic and replaced aortic valves. Peak systolic helical flow, diastolic helical flow and flow complexity during systole differed between the groups (p < 0.0001), and correlated to peak systolic velocity (R = 0.94, 0.87 and 0.88, respectively). The study indicates that aortic valve stenosis increases helical flow and flow complexity, which are measurable with vector flow imaging. For assessment of aortic stenosis and optimization of valve surgery, vector flow imaging may be useful.",

author = "Hansen, {Kristoffer Lindskov} and Hasse M{\o}ller-S{\o}rensen and Jesper Kjaergaard and Jensen, {Maiken Brit} and Jensen, {J{\o}rgen Arendt} and Nielsen, {Michael Bachmann}",

year = "2017",

month = aug,

doi = "10.1016/j.ultrasmedbio.2017.03.018",

language = "English",

volume = "43",

pages = "1607--1617",

journal = "Ultrasound in Medicine & Biology",

issn = "0301-5629",

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TY - JOUR

T1 - Aortic Valve Stenosis Increases Helical Flow and Flow Complexity

T2 - A Study of Intra-Operative Cardiac Vector Flow Imaging

AU - Hansen, Kristoffer Lindskov

AU - Møller-Sørensen, Hasse

AU - Kjaergaard, Jesper

AU - Jensen, Maiken Brit

AU - Jensen, Jørgen Arendt

AU - Nielsen, Michael Bachmann

PY - 2017/8

Y1 - 2017/8

N2 - Aortic valve stenosis alters blood flow in the ascending aorta. Using intra-operative vector flow imaging on the ascending aorta, secondary helical flow during peak systole and diastole, as well as flow complexity of primary flow during systole, were investigated in patients with normal, stenotic and replaced aortic valves. Peak systolic helical flow, diastolic helical flow and flow complexity during systole differed between the groups (p < 0.0001), and correlated to peak systolic velocity (R = 0.94, 0.87 and 0.88, respectively). The study indicates that aortic valve stenosis increases helical flow and flow complexity, which are measurable with vector flow imaging. For assessment of aortic stenosis and optimization of valve surgery, vector flow imaging may be useful.

AB - Aortic valve stenosis alters blood flow in the ascending aorta. Using intra-operative vector flow imaging on the ascending aorta, secondary helical flow during peak systole and diastole, as well as flow complexity of primary flow during systole, were investigated in patients with normal, stenotic and replaced aortic valves. Peak systolic helical flow, diastolic helical flow and flow complexity during systole differed between the groups (p < 0.0001), and correlated to peak systolic velocity (R = 0.94, 0.87 and 0.88, respectively). The study indicates that aortic valve stenosis increases helical flow and flow complexity, which are measurable with vector flow imaging. For assessment of aortic stenosis and optimization of valve surgery, vector flow imaging may be useful.

U2 - 10.1016/j.ultrasmedbio.2017.03.018

DO - 10.1016/j.ultrasmedbio.2017.03.018

M3 - Journal article

C2 - 28495300

SN - 0301-5629

VL - 43

SP - 1607

EP - 1617

JO - Ultrasound in Medicine & Biology

JF - Ultrasound in Medicine & Biology

IS - 8

ER -

Aortic Valve Stenosis Increases Helical Flow and Flow Complexity: A Study of Intra-Operative Cardiac Vector Flow Imaging

Abstract

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