vivo4dHeat Therapy: Heat Therapy is a therapeutic feature integrated into the Osaki Vivo and Osaki DuoMax Massage Chairs, desned to provide targeted warmth to specific areas of the is technology enhancesIn this study, we propose 4D Ultrafast vector flow imaging, through the use of 4D plane-wave ultrafast and cross-beam vector Doppler imaging in order to map in-vivo blood flows in