Abstract
Contact for queries: Alistair.Young@kcl.ac.uk or s.e.petersen@qmul.ac.uk
This returned dataset contains CMR data on the first ~5000 participants who attended the imaging enhancement visit.
This category contains derived data from cardiovascular magnetic resonance (CMR) short-axis tagged images acquired in the basal, mid and apical levels of the left ventricle. Myocardial strain measurements were calculated via semi-automated analyses using CIMTag2D software (CIMTag2D v.8.1.5, Auckland MRI Research Group, New Zealand). Manual adjustments of the tagging grid were made in the end-diastolic (first frame), end-systolic (manually defined at the mid slice), early diastolic phase (rapid filling phase) and also in the last frame.
Returned data contains:
1) Image derived phenotypes:
- End-systolic circumferential strain (apex)
- End-systolic circumferential strain (base)
- End-systolic circumferential strain (mid)
- End-systolic torsion
- End-systolic torsion rate
2) Quality control scores of CMR tagging images and analysis