Table 1 CT image characteristics.
Database | Inst. | Diagnosis | Patient positioning | No. of cases | Modality | Matrix size | In-plane resolution [mm] | Slice interval [mm] |
|---|---|---|---|---|---|---|---|---|
Internal training and testing (fivefold cross-validation) | ||||||||
DB#1 | Osaka Univ Hosp. | Unilateral hip OA | Supine | 20 | HiSpeed, GE | 5122 | 0.7032 − 0.7422 | 1.0–6.0* |
30 | Optima CT660, GE | 5122 | 0.7032 − 0.8202 | 1.25 | ||||
External validation (small-scale, with ground-truth labels of the GMED muscle) | ||||||||
DB#2 | TCIA | Soft tissue sarcoma | Supine | 18 | Discovery ST, GE | 5122 | 0.9772 | 3.75 |
DB#3 | Hitachi Medical Care Center | Colorectal cancer | Supine | 10 | Supria, Hitachi | 5122 | 0.6852 | 0.63 |
DB#4 | Keio Univ Hosp. | Normal | Supine | 20 | Aquilion ONE, Canon Medical Systems | 5122 | 0.6832 | 0.5 |
Standing | 20 | prototype TSX-401R, Canon Medical Systems | 5122 | 0.6832 | 0.5 | |||
Large-scale predictive uncertainty analysis (without ground-truth labels) | ||||||||
DB#5 | Osaka Univ Hosp. | Uni/ bilateral hip OA | Supine | 460 | HiSpeed, GE | 5122 | 0.7032 − 0.7422 | 1.0–6.0 ∗ |
2119 | Optima CT660, GE | 5122 | 0.7032 − 0.8202 | 0.675- 3.75 | ||||
