4.4 Review

Evaluation of Left Ventricular Function Using Four-Dimensional Flow Cardiovascular Magnetic Resonance: A Systematic Review

Journal

Publisher

MDPI
DOI: 10.3390/jcdd9090304

Keywords

4D-flow MRI; left ventricular function; flow quantification; clinical application; cardiovascular magnetic resonance

Funding

  1. New South Wales Office of Health and Medical Research
  2. Frecker Family
  3. Parker-Hughes Bequest

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There is increasing recognition of the value of four-dimensional flow cardiovascular magnetic resonance (4D-flow MRI) in detecting and measuring abnormal flow behavior in early left ventricular dysfunction. This systematic review examines the current literature on the role of 4D-flow MRI-derived flow parameters in quantifying left ventricular function, with a focus on potential clinical applicability. However, there is considerable variability in methodologies and analyses, limiting the collective power of the studies in evaluating clinical applicability. Larger scale investigations and standardization of methodologies are needed for broader clinical application of 4D-flow MRI.
There is increasing recognition of the value of four-dimensional flow cardiovascular magnetic resonance (4D-flow MRI) as a potential means to detect and measure abnormal flow behaviour that occurs during early left ventricular (LV) dysfunction. We performed a systematic review of current literature on the role of 4D-flow MRI-derived flow parameters in quantification of LV function with a focus on potential clinical applicability. A comprehensive literature search was performed in March 2022 on available databases. A total of 1186 articles were identified, and 30 articles were included in the final analysis. All the included studies were ranked as highly clinically applicable. There was considerable variability in the reporting of methodologies and analyses. All the studies were small-scale feasibility or pilot studies investigating a diverse range of flow parameters. The most common primary topics of investigation were energy-related flow parameters, flow components and vortex analysis which demonstrated potentials for quantifying early diastolic dysfunction, whilst other parameters including haemodynamic forces, residence time distribution and turbulent kinetic energy remain in need of further evaluation. Systematic quantitative comparison of study findings was not possible due to this heterogeneity, therefore limiting the collective power of the studies in evaluating clinical applicability of the flow parameters. To achieve broader clinical application of 4D-flow MRI, larger scale investigations are required, together with standardisation of methodologies and analytical approach.

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