I've lived in both the us and Canada. I noticed that mri and CT scan scans were really easy to get done in the us, but would often require a month or more of wa

I've lived in both the us and Canada. I noticed that mri and CT scan scans were really easy to get done in the us, but would often require a month or more of waiting in Canada for non Urgent issues. I wonder how much the overuse contributes to differences in health care costs between countries?