Thanks for your response! Your area of radiology is a great example of how expanded knowledge of technology does not "raise all boats" but in fact can increase disparities - as is consistent with the fundamental cause theory we have been talking about in class. I do want to point out that these disparities in use of technology are not the health disparity themselves, but rather process outcomes that lead to health disparities across a range of outcomes. The health care disparity lecture in two weeks will give you some tools to use to think about how the health care system can work on both structural and interpersonal levels to contribute to these disparities - although I agree there are likely many other aspects of the socioecological model that can be playing a role, including issues related to racism, transportation, health literacy, occupation, etc. And I really appreciate your mention of neighborhood as a factor - this is often underestimated as an influence.