Fig. 2From: A simple measure of the extent of Ebstein valve rotation with cardiovascular magnetic resonance gives a practical guide to feasibility of surgical cone reconstructionThis is an end-diastolic frame from a 4-chamber view, using the CMR bSSFP sequence. The left-hand panel (a) shows the segmentation and tracing method for area ratios of the right and left heart, superimposed upon the image shown on the right, without segmentation (b). fRV = functional RV, RA = right atrium, LA + LV = left atrium + left ventricleBack to article page