1 Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan.
2 Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pa.
3 Department of Artificial Intelligence, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
4 Center for Health Science Innovation, Osaka Metropolitan University, Osaka, Japan.