Vascular surgery is VERY tech heavy! Imaging, devices, stents, grafts, lasers, 3-D reconstructions. I know a vascular resident that did his PhD dissertation on EVAR devices. There is a Vascular surgeon at Michigan that has a PhD in engineering and does mathematical modeling to study flow dynamics and atherosclerosis development. It is definitely a technology driven field. While all surgical specialties have their toys, I would argue vascular has seen the most dramatic evolution in the last ten years driven by endovascular therapy and the imaging and device technology associated with that.