In addition, in the same study, all patients were evaluated with dobutamine stress echo, which was negative in all; IMA levels were unchanged at baseline, peak stress and 1 hour after stress.31.

The researchers found that there were a lot more positive than negative stories, an echo of the well-known tendency for stockbrokers to issue more buy than sell recommendations.

The range and depth dependence of the long-range reverberation and echo-reverberation ratio were calculated for the cases of negative gradient and homogeneous layers.