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Delineation of the pericardium enabling determination of the total heart volume from short-axis images. The base is found in the upper left corner and apex in the lower right corner. The white line indicates the pericardium. The right atrium, left atrium, right ventricle and left ventricle are indicated. Abbreviations: RA = right atrium, LA = left atrium, RV = Right ventricle, LV = left ventricle.
