they cannot agree on TI a if you image it at the time you can look at the blood flow and actually see a blood flow reduction but that doesn't happen very often that you're in and get the picture in the midst of the TI a or right afterwards where we may see a footprint of that blood pressure reduction so not unusual but the type of things that you're going to do after TI a are good things to do anyway yes great question does every er have TPI and you know many years ago the answer was certainly no that you know people