The perfusion scan was negative, at 99% of 159bmp, no perfusion abnormalities at rest or at peak. I did not experience throat tightening
. I still occasionally experience throat tightening
at peak exercise; on the inhale. The Cardio invited me to participate in a CCTA trial. Would a CCTA provide additional useful info? Apparently, false stress echo negatives are due to: not achieving 85% target rate, balanced ischemia, left anterior circumflex stenosis.