Artes BF1-990 CADx Communication OCT Q1-390 SPECT MPI scans T58.5-58.64 TA1-2040 airway volume analysis animal rat models artificial intelligence classification models colon cancer colon polyps computed tomography convolutional neural network convolutional neural networks coronary artery disease data augmentation deep learning embodiment enhancement handcrafted human nature machine learning medical image segmentation microscopic n/a neoplasm metastasis