Introduction
Materials and methods
Patients
CAD software
European training database
Japanese training database
Image evaluation using CAD software
Grade 1 (ANN 0–0.25)
Grade 2 (ANN 0.26–0.50)
Grade 3 (ANN 0.51–0.75)
Grade 4 (ANN: 0.76–1.00)
Bone scintigrams
Statistical analysis method
Results
Grade | 1 | 2 | 3 | 4 | Total |
---|---|---|---|---|---|
Japanese database CAD | |||||
Bone metastases | 4 | 0 | 3 | 35 | 42 |
No bone metastases | 163 | 11 | 7 | 34 | 215 |
European database CAD | |||||
Bone metastases | 3 | 4 | 2 | 33 | 42 |
No bone metastases | 67 | 55 | 30 | 63 | 215 |
Japan database CAD (%) | European database CAD (%) | |
---|---|---|
Sensitivity | 90 | 83 |
Specificity | 81* | 57* |
Accuracy | 82* | 61* |