The false lumen is the path of flow that isn’t the true lumen. The true lumen existed prior to the dissection. Blood tends to clot at lower velocity. I had a

The false lumen is the path of flow that isn’t the true lumen. The true lumen existed prior to the dissection. Blood tends to clot at lower velocity. I had an ascending aortic dissection in 2009, so this his different, I guess.