X-Check DSA is a test object for quality checks of DSA equipment (Digital Subtraction Angiography). The size of the acrylic phantom is 150 mm x 150 mm x 57 mm. X-Check DSA includes a 6 mm thick acrylic slider with manual remote-control and contains four Al strips for vessel simulation to check dynamic range and artifacts. Sensitivity checks are conducted by means of a copper step wedge with 7 steps in 0.2 mm increments. An additional copper step of 1.4 to 0.2 mm makes it possible to evaluate logarithmic errors.