Dynamic bicycle exercise to assess cardiac output at multiple exercise levels during magnetic resonance imaging

Johan Heiberg; Benjamin Asschenfeldt; Marie Maagaard; Steffen Ringgaard

doi:10.1016/j.clinimag.2017.07.010

Dynamic bicycle exercise to assess cardiac output at multiple exercise levels during magnetic resonance imaging

Johan Heiberg, Benjamin Asschenfeldt, Marie Maagaard, Steffen Ringgaard

16 Citationer (Scopus)

Abstract

PURPOSE: The aim was to establish a method for performing dynamic exercise during magnetic resonance imaging (MRI) using a slowly increasing workload protocol.

METHODS: An ergometer bicycle with a step-wise, exercise protocol was used. Real-time phase-contrast MRI images of the aorta were obtained at each exercise step.

RESULTS: In total, 40 participants completed the exercise protocol to reach a mean maximum cardiac output of 13.7±3.7l/min and a heart rate of 150±16beats/min at the highest exercise level. Less than 1% of scans were discarded due to poor quality.

CONCLUSIONS: Dynamic, high intensity exercise is feasible during MRI.

Originalsprog	Engelsk
Tidsskrift	Clinical Imaging
Vol/bind	46
Sider (fra-til)	102-107
Antal sider	6
ISSN	0730-725X
DOI	https://doi.org/10.1016/j.clinimag.2017.07.010
Status	Udgivet - 2017
Udgivet eksternt	Ja

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10.1016/j.clinimag.2017.07.010

Citationsformater

@article{7cada382380a45c384ac57243d80f929,

title = "Dynamic bicycle exercise to assess cardiac output at multiple exercise levels during magnetic resonance imaging",

abstract = "PURPOSE: The aim was to establish a method for performing dynamic exercise during magnetic resonance imaging (MRI) using a slowly increasing workload protocol.METHODS: An ergometer bicycle with a step-wise, exercise protocol was used. Real-time phase-contrast MRI images of the aorta were obtained at each exercise step.RESULTS: In total, 40 participants completed the exercise protocol to reach a mean maximum cardiac output of 13.7±3.7l/min and a heart rate of 150±16beats/min at the highest exercise level. Less than 1% of scans were discarded due to poor quality.CONCLUSIONS: Dynamic, high intensity exercise is feasible during MRI.",

keywords = "Adult, Aorta/diagnostic imaging, Bicycling/physiology, Cardiac Output, Exercise/physiology, Exercise Test/methods, Feasibility Studies, Female, Heart Rate, Humans, Magnetic Resonance Imaging/methods, Male, Physical Exertion/physiology, Young Adult",

author = "Johan Heiberg and Benjamin Asschenfeldt and Marie Maagaard and Steffen Ringgaard",

year = "2017",

doi = "10.1016/j.clinimag.2017.07.010",

language = "English",

volume = "46",

pages = "102--107",

journal = "Clinical Imaging ",

issn = "0730-725X",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Dynamic bicycle exercise to assess cardiac output at multiple exercise levels during magnetic resonance imaging

AU - Heiberg, Johan

AU - Asschenfeldt, Benjamin

AU - Maagaard, Marie

AU - Ringgaard, Steffen

PY - 2017

Y1 - 2017

N2 - PURPOSE: The aim was to establish a method for performing dynamic exercise during magnetic resonance imaging (MRI) using a slowly increasing workload protocol.METHODS: An ergometer bicycle with a step-wise, exercise protocol was used. Real-time phase-contrast MRI images of the aorta were obtained at each exercise step.RESULTS: In total, 40 participants completed the exercise protocol to reach a mean maximum cardiac output of 13.7±3.7l/min and a heart rate of 150±16beats/min at the highest exercise level. Less than 1% of scans were discarded due to poor quality.CONCLUSIONS: Dynamic, high intensity exercise is feasible during MRI.

AB - PURPOSE: The aim was to establish a method for performing dynamic exercise during magnetic resonance imaging (MRI) using a slowly increasing workload protocol.METHODS: An ergometer bicycle with a step-wise, exercise protocol was used. Real-time phase-contrast MRI images of the aorta were obtained at each exercise step.RESULTS: In total, 40 participants completed the exercise protocol to reach a mean maximum cardiac output of 13.7±3.7l/min and a heart rate of 150±16beats/min at the highest exercise level. Less than 1% of scans were discarded due to poor quality.CONCLUSIONS: Dynamic, high intensity exercise is feasible during MRI.

KW - Adult

KW - Aorta/diagnostic imaging

KW - Bicycling/physiology

KW - Cardiac Output

KW - Exercise/physiology

KW - Exercise Test/methods

KW - Feasibility Studies

KW - Female

KW - Heart Rate

KW - Humans

KW - Magnetic Resonance Imaging/methods

KW - Male

KW - Physical Exertion/physiology

KW - Young Adult

U2 - 10.1016/j.clinimag.2017.07.010

DO - 10.1016/j.clinimag.2017.07.010

M3 - Journal article

C2 - 28778011

SN - 0730-725X

VL - 46

SP - 102

EP - 107

JO - Clinical Imaging

JF - Clinical Imaging

ER -

Dynamic bicycle exercise to assess cardiac output at multiple exercise levels during magnetic resonance imaging

Abstract

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