1. A method of angiographic imaging comprising: disposing a region of interest of a subject in an examination region; entering physical parameters of the subject into a parameter database; accessing the parameter database to determine diagnostic imaging triggering information for the subject; injecting a contrast agent into the subject; monitoring for an arrival of the contrast agent in a region of interest; initiating an angiographic imaging scan in response to detecting the arrival of the contrast agent and the determined triggering information; and, updating the parameter database.