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Published in: European Radiology 2/2024

Open Access 15-08-2023 | Stroke | Cardiac

Evaluation of left ventricular and left atrial volumetric function from native MR multislice 4D flow magnitude data

Authors: Clemens Reiter, Gert Reiter, Corina Kräuter, Daniel Scherr, Albrecht Schmidt, Michael Fuchsjäger, Ursula Reiter

Published in: European Radiology | Issue 2/2024

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Abstract

Objectives

To assess the feasibility, precision, and accuracy of left ventricular (LV) and left atrial (LA) volumetric function evaluation from native magnetic resonance (MR) multislice 4D flow magnitude images.

Materials & Methods

In this prospective study, 60 subjects without signs or symptoms of heart failure underwent 3T native cardiac MR multislice 4D flow and bSSFP-cine realtime imaging. LV and LA volumetric function parameters were evaluated from 4D flow magnitude (4D flow-cine) and bSSFP-cine data using standard software to obtain end-diastolic volume (EDV), end-systolic volume (ESV), ejection-fraction (EF), stroke-volume (SV), LV muscle mass (LVM), LA maximum volume, LA minimum volume, and LA total ejection fraction (LATEF). Stroke volumes derived from both imaging methods were further compared to 4D pulmonary artery flow-derived net forward volumes (NFV). Methods were compared by correlation and Bland-Altman analysis.

Results

Volumetric function parameters from 4D flow-cine and bSSFP-cine showed high to very high correlations (r = 0.83-0.98). SV, LA volumes and LATEF did not differ between methods. LV end-diastolic and end-systolic volumes were slightly underestimated (EDV: –2.9 ± 5.8 mL; ESV: -2.3 ± 3.8 mL), EF was slightly overestimated (EF: 0.9 ± 2.6%), and LV mass was considerably overestimated (LVM: 39.0 ± 11.4 g) by 4D flow-cine imaging. SVs from both methods correlated very highly with NFV (r = 0.91 in both cases) and did not differ from NFV.

Conclusion

Native multislice 4D flow magnitude data allows precise evaluation of LV and LA volumetric parameters; however, apart from SV, LV volumetric parameters demonstrate bias and need to be referred to their respective normal values.

Clinical relevance statement

Volumetric function assessment from native multislice 4D flow magnitude images can be performed with routinely used clinical software, facilitating the application of 4D flow as a one-stop-shop functional cardiac MR exam, providing consistent, simultaneously acquired, volume and flow data.

Key points

Native multislice 4D flow imaging allows evaluation of volumetric left ventricular and atrial function parameters.
Left ventricular and left atrial function parameters derived from native multislice 4D flow data correlate highly with corresponding standard cine-derived parameters.
Multislice 4D flow-derived volumetric stroke volume and net forward volume do not differ.
Literature
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Metadata
Title
Evaluation of left ventricular and left atrial volumetric function from native MR multislice 4D flow magnitude data
Authors
Clemens Reiter
Gert Reiter
Corina Kräuter
Daniel Scherr
Albrecht Schmidt
Michael Fuchsjäger
Ursula Reiter
Publication date
15-08-2023
Publisher
Springer Berlin Heidelberg
Keyword
Stroke
Published in
European Radiology / Issue 2/2024
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-023-10017-3

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