Age, gender, blood pressure, and ventricular geometry influence normal 3D blood flow characteristics in the left heart

Daniela Föll, Steffen Taeger, Christoph Bode, Bernd Jung, Michael Markl*

*Corresponding author for this work

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

AimsThe aim of this study was to assess the effect of age, gender, physiological, and global cardiac function parameters on differences in normal 3D blood flow in the left ventricle (LV) and atrium (LA) using 4D flow magnetic resonance imaging (MRI).Methods and resultsFour-dimensional flow MRI was acquired in healthy volunteers of two age and gender groups: <30 years (6 women, n 12) and >50 years (6 women, n 12). Systolic and early to mid-diastolic vortex flow (number of vortices, duration, area, peak velocity inside the vortex) in the LA and LV was assessed using intra-cardiac flow visualization based on 3D particle traces and velocity vector fields. A larger number of vortices in the LA were found in young compared with older individuals (number of diastolic vortices: 1.6 ± 0.8 vs. 0.7 ± 0.7, P 0.01) with higher velocities (54 ± 12 cm/s vs. 41 ± 11 cm/s in systole, 47 ± 13 vs. 31 ± 8 cm/s in diastole, P < 0.05). Vortices in the LV base were smaller in women compared with men (369 ± 133 vs. 543 ± 176 mm2, P 0.009), while vortex size was increased in mid-ventricular locations (maximum area: 546 ± 321 vs. 293 ± 174 mm2, P < 0.05). Correlation analysis revealed significant relationships (P 0.005-0.048, correlation coefficients 0.44-0.84) between LA and LV vortex characteristics (number, size, vortex velocities) and blood pressure as well as end-diastolic volume, LV length, and ejection fraction. ConclusionsFlow patterns in the left heart demonstrated differences related to age, gender, blood pressure, and ventricular geometry. The findings constitute a prerequisite for the understanding of the impact of cardiac disease on intra-cardiac haemodynamics.

Original languageEnglish (US)
Pages (from-to)366-373
Number of pages8
JournalEuropean heart journal cardiovascular Imaging
Volume14
Issue number4
DOIs
StatePublished - Apr 1 2013

Keywords

  • 4D flow MRI
  • Ageing
  • Blood flow
  • Gender
  • Vortex

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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