One-dimensional or M-mode echocardiography is one beam of ultrasound directed toward the heart.
M-mode echo: principles and classic findings
PCI: classification of the lesion
Atrial flutter classification
No-reflow phenomenon myocardial contrast echocardiography
Ebsteins anomaly of the tricuspid valve CT
European society of cardiology guidelines classification scheme
The Physical Examination in Cardiovascular Disease: The Pulse
Tetralogy of fallot echocardiography