I had this done on both sides. I had an IV in and they injected dye into my system then took x-rays of the veins as the contrast IV solution went into me. I was also put into provocative positions. It was not invasive to me. But going in from the groin sounds a little excessive to me!! I'd want to start small and work up. I did find out tht I had a 90% blockage of my subclavian vein due to this test......before any of this was done I had an ultrasound done on my arms and they found total occlusion of both vein and artery when I was in provocative position as thus moved forward to the angiogram.......so start small and work your way up....unless he gives you perhaps an IRON CLAD reason for wanting to do this testing!!!

best of luck with it all.....
love and hugs,
Victoria