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Fig. 2B. —75-year-old man with aortic stenosis. Postprocessed image of tag intersection movement from end-diastole to end-systole ({diamondsuit}) with recalculation of centroid (+) for each image reveals increase of counter-clockwise rotation to 23.8° and decrease of radial contraction and of circumferential shortening to 2.6 mm and 18.8%, respectively, before surgical valve replacement and movement of centroid toward left side of image.





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