Table 1.

Acoustic impedance values of carotid atherosclerotic plaques of 10 different patients with two distinguished regions of calcification and collagen.

Patients (Age, Gender)	Acoustic Impedance (collagen-rich region) (MRayl)	Acoustic Impedance (calcific region) (MRayl)
1–63, Female	1.85 ± 0.08	2.08 ± 0.07
2–62, Female	1.87 ± 0.08	2.24 ± 0.10
3–79, Male	1.78 ± 0.17	2.39 ± 0.10
4–85, Male	1.80 ± 0.18	2.30 ± 0.10
5–75, Male	1.75 ± 0.24	2.51 ± 0.18
6–74, Male	2.10 ± 0.21	3.95 ± 0.01
7–62, Female	1.85 ± 0.09	2.12 ± 0.09
8–66, Female	1.83 ± 0.10	2.56 ± 0.13
9–59, Female	1.83 ± 0.18	2.16 ± 0.12
10–63, Male	1.78 ± 0.07	2.37 ± 0.01

5 female and 5 male patients with divergent ages were studied for the correlation of age and gender on plaque contents.