Assessing diastolic function using CMR as an alternative to echocardiography: age- and gender-related normal

Lilly Charlotte Cirener1, Hermann Körperich2, Peter Barth1

  • 1Institute for Radiology, Nuclear Medicine and Molecular Imaging, Heart and Diabetes Center North Rhine Westphalia, Ruhr-University of Bochum, Georgstr. 11, 32545, Bad Oeynhausen, Germany.

Insights

Cardiovascular magnetic resonance (CMR) provides reliable diastolic function assessment, showing age-dependent changes but minimal gender differences. This technique correlates well with echocardiography, offering a promising alternative for evaluating heart health.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Physiology

Background:

  • Impaired diastolic function is linked to various heart conditions like myocarditis and dilated cardiomyopathy.
  • Echocardiography is the current standard for diastolic function assessment.
  • Cardiovascular magnetic resonance (CMR) is emerging as a potentially superior alternative.

Purpose of the Study:

  • To establish age- and gender-dependent normal reference values for diastolic function using CMR.
  • To evaluate pulmonary venous (PV) and transmitral (MV) blood-flow parameters with CMR.
  • To compare CMR-derived parameters with echocardiography findings.

Main Methods:

  • Flow-sensitive phase-contrast CMR imaging was performed on 183 healthy individuals aged 10-70 years.
  • Measurements included right upper pulmonary vein (RUPV) and mitral valve (MV) blood flow.
  • Data analysis involved Pearson and Spearman correlations to assess age and gender dependencies and CMR-echocardiography agreement.

Main Results:

  • Significant age-dependence was observed for PV S/D (r=0.718) and MV E/A (ρ=-0.736) ratios.
  • Moderate age-dependence was noted for PV slope D-wave (r=0.394).
  • CMR and echocardiography showed strong correlations for PV S/D (r=0.545) and MV E/A (ρ=0.692).

Conclusions:

  • Diastolic functional parameters assessed by CMR exhibit significant age-related changes.
  • Gender differences in these parameters are minimal, with a slight exception for MV slope E-wave.
  • CMR is a viable and promising alternative to echocardiography for assessing diastolic function, demonstrating strong agreement in key parameters.
Abstract