Abstract: Embodiments disclosed herein are directed to a vessel assessment system configured to image a target vessel and determine which vascular access device (VAD) to use to access the target vessel while remaining within one or more insertion parameters of percentage vessel occupancy, and dwell length given a predetermined range of insertion angles. The system can superimpose a target vessel sizing ring to measure a diameter or cross-sectional area, or to measure a depth of the target vessel. Further, the system can provide a list of VAD's that can access the target vessel within one or more insertion parameters. The system can provide an icon representing the VAD superimposed over the target vessel to provide a visual representation of the vascular access device within the target vessel.