Figure 1
From: Large-scale Quality Control of Cardiac Imaging in Population Studies: Application to UK Biobank
Overview of the automated quality control pipeline19. The pipeline estimates for each SA stack (1) heart coverage, (2) inter-slice motion, (3) cardiac image contrast. Coverage is defined as the percentage of the LV long axis which is covered by the SA stack; in addition, the potential gaps between the stack and the anatomical landmarks (i.e. mitral valve and apex for basal and apical regions, respectively) are also estimated. Inter-slice motion is defined as the average in-plane misalignment of the slices; the same quantity is also estimated separately for the basal, mid-ventricular and apical regions. Cardiac image contrast is defined as the average percentage of the dynamic range used in the slices to represent the difference in intensity between LV cavity and LV myocardium; regional quantities are similarly also estimated.
