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Fig. 4A —Severe valve calcification, false-negative for aortic regurgitation, in 55-year-old woman. Left coronal oblique plane (A) and left sagittal oblique plane (B) were used to reconstruct perpendicular cross-sectional image (C) of aortic valve by applying multiplanar reformations. Note that very tiny white "spot" is seen centrally within thickened leaflets; this finding indicates mild aortic valve regurgitation, which was missed initially by CT but could be retrospectively detected.