An imaging controller (46) performs data acquisition in first and second scanning processes (48, 50), the first scanning process (48) including a set of data acquisitions (92, 96, 106, 122, 124, 126, 128, 130) and periods of inactivity (90, 94, 102, 110, 142, 152). A workflow manager (58) monitors the first scanning process (48), detects the periods of inactivity (90, 94, 102, 110, 142, 152) and enables data acquisition of the second scanning process (50) when the first scanning process (48) is inactive.