Is daughter's cumulative dose of radiation from angiogram to look at veins in spine concerning or abnormally high?since she's a child,how likely cncr?

Radiation dose: http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray i would not worry to much .They tend to be careful and conservative with radiation exposure in children . Would put her in the mild category .(see heart section) don't worry it is a one time thing not daily

Radiation: to predict a risk percentage we would need a total dose of exposure. We try to minimize radiation exposure as you know. There will be an increased risk but odds remain with the child. Try to be careful with future exposure as much as possible. Risk benefit of radiation studies always needs to be considered.