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Fig. 2A —Aortic valve calcifications on CT (section thickness, 5 mm) in four elderly patients. Example of severe calcification (subjective grade, 8.5 on 9-point scale; peak gradient, 75 mm Hg; mean gradient, 49 mm Hg), both centrally and peripherally in valve, involving right-left commissure (arrow) and left-posterior commissure (arrowhead). Patient is an 88-year-old woman.