Please upload data files that go with the two screenshot images which show possible emboli.
Adjust the color scale range with clim(). This will take some experimentation. Make a custom color map. I demonstrated a way to do this in one of my comments in response to your earlier question. You can also make a custom colormap with the colormap editor.
Are you using a Sonara or Sonara/tek system? Or Dolphin system? The reason I am asking is that perhaps the device manual will allow a better understanding of the options, including the dB setting. On Sonara trans-cranial Doppler systems, the dB setting is only for acquiring data, and is not adjustable during playback or display. The Dolphin TCD uses a prorietary alorithm to detect and display high intensity transient signals (HITS), i.e. to detect and display embolic signals. It may not be feasible to reverse-engineer their prorietary algorithm.
