1. M-Mode Echocardiography
John N. Hamaty D.O.
SJHG

2. M-Mode Echo
• Used in combination with 2-dimentional
• Rapid sampling of a region results in
placing sequential parallel data lines so
close together that individual points of
brightness appear as continuous
horizontal lines.
• 90 degrees to sample- “ice pick”

3. M-Mode Echo
• This narrow field allows fewer pulses with
a higher frame rate and therefore better
temporal resolution
• Factors that shorten the time required to
make a frame will act to improve temporal
resolution.

4. Improving Temporal Resolution
• Minimize depth of view
• Use single focus
• Narrow sector
• Minimize line density
• As temporal resolution improves, image
quality may degrade.

18. Mitral Valve Disease
M-Mode Echo

19. Anterior Mitral Valve Prolapse(Mid-
Late Systole)

21. Mitral Stenosis

22. Aortic Insufficiency with fluttering
of Mitral Valve

23. Mitral Valve Endocarditis

25. Aortic Valve Disease
M-Mode Echo

26. Critical Aortic Stenosis

27. Early closure of AV due to Severe LV dysfun

28. St Jude Prosthetic Aortic Valve

29. Pulmonic Valve Disease
M-Mode Echo

30. Pulmonary HTN with “Flying W sign”

31. Left Ventricle
M-Mode Echo

33. Dilated Cardiomyopathy

34. “B” bump due to elevated EDP

35. Hypertrophic Cardiomyopathy

36. Paradoxic Septal Motion