A new and distinct cultivar ofVeronica plant named Barnineteen, characterized by its upright plant habit; glossy dark green leaves; freely flowering habit; dark violet blue-colored flowers; and good postproduction longevity. The respectively interpolated signals are mixed in dependence on a degree of motion at the given location in the video picture, as defined by a motion decision parameter. Moreover, the signal processing circuitry is powered by a variable power source. The method also includes the step of inserting the catheter through an artery by pushing the same until the tip is in within laser energy striking distance of the atherosclerotic lesion.