Using patented kinetic imaging technology one can see the movement of the contrast media based on X-ray image series. This technology presents the bolus movement as a new digital variance angiography (DVA) image. For the latest approach CO2 as contrast media is also applicable. The advanced statistical data analysis yields better image quality than DSA. Replacing DSA with kinetic imaging obtains better image quality, reduced contrast agent amount (50%) or X-ray dose (up to 12%).