Fig. 1From: Evaluation of a new predictor of heart and left anterior descending artery dose in patients treated with adjuvant radiotherapy to the left breasta-c Anatomically-based distance metrics for breath-hold radiotherapy showing (a) Contact Heart metric in the parasagittal axis and (b-c) 4th Arch and 5th Arch distance metrics, respectively acquired by a single measurement in the axial axis at the level in which the 4th or 5th costal arch connects with the sternum of adjacent costal cartilageBack to article page