Table 2 Clinical characteristics and cine MR feature tracking parameters
From: Cine MR feature tracking analysis for diagnosing thymic epithelial tumors: a feasibility study
Low-risk thymomas (n = 10) | High-risk thymomas (n = 23) | Thymic carcinomas (n = 10) | P (among three groups) | P (Low- vs. high-risk thymomas) | P (all thymomas vs. carcinomas) | ||
|---|---|---|---|---|---|---|---|
Axial image | Contact length (mm) | 43.2 ± 14.6 | 33.9 ± 13.5 | 44.0 ± 16.3 | 0.101 | 0.089 | 0.204 |
Long diameter with maximum lesion area (mm) | 49.5 ± 16.4 | 45.2 ± 16.8 | 52.9 ± 22.9 | 0.721 | 0.524 | 0.702 | |
Short diameter with maximum lesion area (mm) | 30.5 ± 12.0 | 23.3 ± 9.1 | 33.5 ± 18.7 | 0.123 | 0.105 | 0.249 | |
Long-to-short ratio with maximum lesion area | 0.6 ± 0.1 | 0.5 ± 0.1 | 0.6 ± 0.1 | 0.193 | 0.133 | 0.386 | |
Long diameter with minimum lesion area (mm) | 48.6 ± 16.7 | 44.7 ± 16.7 | 52.5 ± 23.0 | 0.724 | 0.550 | 0.661 | |
Short diameter with minimum lesion area (mm) | 28.7 ± 11.5 | 22.5 ± 9.4 | 32.9 ± 18.9 | 0.140 | 0.155 | 0.194 | |
Long-to-short ratio with minimum lesion area | 0.6 ± 0.1 | 0.5 ± 0.2 | 0.6 ± 0.1 | 0.241 | 0.207 | 0.273 | |
∆Long-to-short ratio (%) | 4.7 ± 3.5 | 4.1 ± 5.8 | 1.4 ± 1.4 | 0.028 | 0.253 | 0.012 | |
Maximum lesion area (mm2) | 1349.8 ± 918.3 | 964.7 ± 654.0 | 1747.0 ± 1942.0 | 0.294 | 0.269 | 0.313 | |
Minimum lesion area (mm2) | 1270.0 ± 885.9 | 929.8 ± 649.0 | 1717.5 ± 1939.1 | 0.310 | 0.305 | 0.286 | |
∆Area (%) | 6.8 ± 4.2 | 4.9 ± 4.5 | 2.6 ± 1.6 | 0.006 | 0.038 | 0.012 | |
Oblique image | Contact length (mm) | 54.1 ± 24.1 | 43.6 ± 16.2 | 51.2 ± 23.2 | 0.524 | 0.269 | 0.702 |
Long diameter with maximum lesion area (mm) | 51.3 ± 19.5 | 42.6 ± 14.5 | 53.8 ± 25.7 | 0.477 | 0.305 | 0.487 | |
Short diameter with maximum lesion area (mm) | 30.4 ± 12.5 | 23.8 ± 10.9 | 31.7 ± 19.4 | 0.2829 | 0.133 | 0.681 | |
Long-to-short ratio with maximum lesion area | 0.6 ± 0.1 | 0.6 ± 0.2 | 0.6 ± 0.1 | 0.800 | 0.524 | 0.788 | |
Long diameter with minimum lesion area (mm) | 50.1 ± 19.5 | 42.6 ± 14.5 | 53.3 ± 25.8 | 0.533 | 0.343 | 0.487 | |
Short diameter with minimum lesion area (mm) | 30.4 ± 12.5 | 23.8 ± 10.9 | 31.0 ± 18.7 | 0.266 | 0.133 | 0.542 | |
Long-to-short ratio with minimum lesion area | 0.6 ± 0.2 | 0.6 ± 0.2 | 0.6 ± 0.1 | 0.772 | 0.524 | 0.810 | |
∆Long-to-short ratio (%) | 6.5 ± 5.9 | 4.6 ± 4.2 | 1.6 ± 1.0 | 0.034 | 0.363 | 0.015 | |
Maximum lesion area (mm2) | 1339.5 ± 1003.0 | 950.2 ± 642.4 | 1704.9 ± 1962.3 | 0.421 | 0.305 | 0.435 | |
Minimum lesion area (mm2) | 1336.9 ± 984.0 | 900.5 ± 637.4 | 1670.7 ± 1947.7 | 0.354 | 0.384 | 0.356 | |
∆Area (%) | 5.7 ± 3.7 | 6.5 ± 4.8 | 2.8 ± 1.4 | 0.043 | 0.862 | 0.011 |