Table 3 Native T1 value with ECV fraction measurement and ADC value of Thymic Epithelial Tumors
Variables | Native T1 (ms) | p | ECV (%) | p | ADC (× 10−3 mm2/s) | p |
|---|---|---|---|---|---|---|
Tumor size | .224 | .656 | .008 | |||
Size ≦ 5 cm (n = 12) | 1543.9 (1387.51663.3) | 31.4 (26.0,38.7) | 1.98 (1.51,2.47) | |||
Size > 5 cm (n = 19) | 1445.6 (1290.51570.2) | 36.0 (26.2,42.5) | 1.19 (0.97,1.90) | |||
Myasthenia gravis | .814 | .316 | .195 | |||
No (n = 27) | 1470.4 (1339.0,1662.5) | 33.8 (26.5,42.5) | 1.36 (1.08,2.13) | |||
Yes (n = 4) | 1461.1 (1248.91645.9) | 27.6 (25.7,35.0) | 2.02 (1.54,2.42) | |||
Invasiveness | .010 | .150 | .004 | |||
Noninvasive (n = 18) | 1574.5 (1388.41694.8) | 31.4 (26.1,36.8) | 2.00 (1.33,2.55) | |||
Invasive (n = 13) | 1384.1 (1309.11458.0) | 37.0 (27.6,52.2) | 1.16 (0.96,1.45) | |||
Histologic grade | .139 | .002 | .391 | |||
Low grade (n = 13) | 1570.2 (1309.81710.4) | 31.1 (26.0,36.4) | 1.90 (1.20,2.59) | |||
High grade (n = 10) | 1522.8 (1420.71602.6) | 27.6 (24.5,33.0) | 1.44 (1.06,2.39) | |||
Carcinoma (n = 8) | 1361.6 (1299.81440.5) | 48.6 (38.4,57.8) | 1.28 (1.02,1.69) | |||
Lymphocyte | .575 | <.001 | .810 | |||
Sparse (n = 13) | 1436.3 (1309.11695.7) | 42.5 (36.9,57.0) | 1.44 (1.19,2.00) | |||
Rich (n = 18) | 1501.9 (1356.91662.7) | 26.9 (24.4,31.2) | 1.58 (1.06,2.50) |