Publications by authors named "H Arheden"
Article Synopsis
- Hydraulic force, a new mechanism that supports diastolic filling in the heart, is measured through the difference in short-axis areas between the left ventricle and atrium during heart cycles.
- The study aimed to see how this area difference (AVAD) changes from rest to exercise in both sedentary individuals and athletes by using cardiovascular magnetic resonance imaging (CMR).
- Findings showed that AVAD increased during moderate exercise, enhancing diastolic filling, but did not show further increase during vigorous exercise; athletes maintained stable AVAD while sedentary controls saw a decrease with higher intensity activities.
Background: Right ventricular (RV) dyssynchrony or post systolic contraction (PSC) causes inefficient pumping and has not been investigated as a prognostic marker in pulmonary arterial hypertension (PAH). The objective was to investigate if RV dyssynchrony and PSC are prognostic markers of transplantation-free survival in PAH and if multiple RV views improve prognostication.
Methods: Patients with PAH undergoing cardiovascular magnetic resonance between 2003 and 2021 were included.
Atrial septal defect closure in children at young age is beneficial for left ventricular function.
Eur Heart J Imaging Methods Pract
January 2024
Aims: Atrial septal defects (ASDs) lead to volume-loaded right ventricles (RVs). ASD closure does not always alleviate symptoms or improve exercise capacity, which is possibly explained by impaired left ventricular (LV) haemodynamics. This study evaluated the effect of ASD closure in children using non-invasive LV pressure-volume (PV) loops derived from cardiac magnetic resonance (CMR) imaging and brachial blood pressure, compared with controls.
View Article and Find Full Text PDFAims: Patients with non-obstructive hypertrophic cardiomyopathy (HCM) exhibit myocardial changes which may cause flow inefficiencies not detectable on echocardiogram. We investigated whether left ventricular (LV) kinetic energy (KE) and hemodynamic forces (HDF) on 4D-flow cardiovascular magnetic resonance (CMR) can provide more sensitive measures of flow in non-obstructive HCM.
Methods And Results: Ninety participants (70 with non-obstructive HCM and 20 healthy controls) underwent 4D-flow CMR.