Variable | Studies analysed | Type of malignancy | No. of studies | Pooled results (95% CI) | Heterogeneity (I2, %) | Heterogeneity P Value |
---|---|---|---|---|---|---|
Deep learning | ||||||
 AUROC per-patient | Rectal | 2 | 0.917 (0.882–0.952) | 0.00 | 0.829 | |
Radiomics | ||||||
 Sensitivity per-patient | Rectal | 3 | 0.776 (0.685–0.851) | 0.00 | 0.368 | |
 Sensitivity per-node | Rectal | 2 | 0.896 (0.834–0.941) | 0.00 | 0.393 | |
 Specificity per-patient | Rectal | 3 | 0.676 (0.608–0.739) | 75.4 | 0.017 | |
 Specificity per-node | Rectal | 2 | 0.743 (0.665–0.811) | 87.8 | 0.004 | |
 AUROC per patient | Colorectal | 2 | 0.727 (0.633–0.821) | 94.1 | < 0.0001 | |
 AUROC per patient | Rectal | 5 | 0.808 (0.739–0.876) | 63.3 | 0.028 | |
 AUROC per node | Rectal | 2 | 0.846 (0.803–0.890) | 0.00 | 0.433 | |
Radiologist | ||||||
 Sensitivity per-patient | Colorectal | 2 | 0.641 (0.577–0.702) | 70.9 | 0.064 | |
 Specificity per-patient | Colorectal | 2 | 0.657 (0.597–0.713) | 11.1 | 0.289 | |
 Sensitivity per-patient | Rectal | 4 | 0.678 (0.628–0.726) | 57.5 | 0.070 | |
 Specificity per-patient | Rectal | 4 | 0.701 (0.667–0.733) | 97.8 | < 0.0001 | |
 AUROC per-patient | Colorectal | 2 | 0.676 (0.627–0.725) | 58.4 | 0.121 | |
 AUROC per-patient | Rectal | 5 | 0.688 (0.603 to 0.772) | 93.4 | < 0.0001 |