Figure 1.

Histomorphometry of the calcified aortic valve. A1, X-ray microradiograph of the calcified valve. The smaller area of calcification is on the right, denoted by a star, and an arrow is pointing to the larger area of calcification on the left. A2, Star points to the Goldner’s-Masson Trichrome green stain for hydroxyapatite in the low magnification view. A3, Arrow points to the von Kossa black stain for calcium and phosphate in the high-magnification view. B1, MicroCT 2D reconstruction of the calcified aortic valve. B2, MicroCT 3D reconstruction of the calcified aortic valve.