1. A magnetic resonance angiographic method comprising: acquiring high resolution volume image data comprising data corresponding to a high resolution image volume; acquiring data corresponding to at least one vessel identification image slice, said acquired data having selectively enhanced contrast for one of arteries and veins; reconstructing a high resolution volume image representation from the acquired high resolution volume image data; reconstructing at least one vessel identification slice image representation from the acquired data corresponding to at least one vessel identification image slice; and identifying at least one of an artery starting point and a vein starting point in the high resolution image based on the vessel identification slice image representation.