Fig 1.
Illustration of development of AI-based models.
Image features were obtained from simulation CT images (a). The image and clinical features were used to develop an integrated model with XGBoost (b).
Table 1.
Patient characteristics.
Fig 2.
Kaplan-Meir curves for the entire cohort (n = 124).
Red, green, and blue lines show LC, OS, and PFS, respectively. Abbreviations: LC, local control; OS, overall survival; PFS, progression-free survival.
Fig 3.
ROC curves of the integrated model using clinical data and CT images by three axes planes.
CI, confidence interval.
Fig 4.
Input images in (a) RGB and (b) greyscale. (c) Grad-CAM image and (d) the fusional image of (b) with (c). Lines indicate contours of gross target volume in each plane.