An echogram displays the relative density of aquatic organisms from the seafloor to the surface of Monterey Bay.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Cardiac echogram was performed yearly and myocardial scintigram immediately before surgery; ACEIs were administered when left ventricular ejection fraction (LVEF) reached 55\%.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference