A method and apparatus for imaging a body by exposing the body to radiation transmitted through the body via successive angular portions from a radiation source on one side of the body to a radiation detector in alignment with the radiation source on the opposite side of the body; the radiation detector...http://www.google.com.au/patents/US6574500?utm_source=gb-gplus-sharePatent US6574500 - Imaging methods and apparatus particularly useful for two and three-dimensional angiography
