Table 3.
T1 and T2 mapping parameters in healthy Chinese adults by sex
| Total (n = 1015) | Male (n = 515) | Female (n = 500) | P value | |
|---|---|---|---|---|
| T1 value (ms) | ||||
| Base | 1195.5 ± 35.8 (1123.9–1267.1) | 1180.3 ± 32.4 (1115.5–1245.2) | 1211.1 ± 32.2 (1146.7–1275.6) | < 0.001 |
| Middle | 1186.5 ± 39.0 (1108.5–1264.5) | 1169.4 ± 34.6 (1100.2–1238.6) | 1204.1 ± 35.3 (1133.5–1274.6) | < 0.001 |
| Apex | 1201.5 ± 46.2 (1109.1–1293.8) | 1180.0 ± 42.2 (1095.6–1264.3) | 1225.0 ± 38.2 (1148.5–1301.4) | < 0.001 |
| Global | 1193.2 ± 34.1 (1124.9–1261.5) | 1176.0 ± 29.9 (1116.3–1235.7) | 1210.9 ± 28.8 (1153.2–1268.6) | < 0.001 |
| Septum | 1201.9 ± 42.2 (1117.6–1286.3) | 1185.5 ± 39.5 (1106.4–1264.5) | 1218.9 ± 37.9 (1143.2–1294.6) | < 0.001 |
| T2 value (ms) | ||||
| Base | 35.7 ± 2.6 (30.5–40.9) | 35.0 ± 2.5 (30.0–40.0) | 36.4 ± 2.5 (31.4–41.4) | < 0.001 |
| Middle | 35.9 ± 2.7 (30.4–41.3) | 35.1 ± 2.7 (29.7–40.5) | 36.7 ± 2.5 (31.6–41.7) | < 0.001 |
| Apex | 36.5 ± 3.1 (30.4–42.6) | 35.8 ± 3.1 (29.7–41.9) | 37.2 ± 2.9 (31.4–43.0) | < 0.001 |
| Global | 35.9 ± 2.5 (30.9–41.0) | 35.2 ± 2.5 (30.2–40.2) | 36.7 ± 2.3 (32.0–41.4) | < 0.001 |
| Septum | 36.3 ± 3.0 (30.3–42.3) | 35.6 ± 3.0 (29.6–41.6) | 37.0 ± 2.8 (31.5–42.6) | < 0.001 |
Data are presented as means ± SD (lower/upper limits). Lower/upper limits calculated as mean ± 2 SD. P-value is for t-test between sexes