Real-time cross-sectional ultrasonic imaging of the heart using a linear array multi-element transducer.
D000328:Adult; D002675:Child, Preschool; D004452:Echocardiography; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D010490:Pericardial Effusion / Q000175:diagnosis*