M-Mode Echocardiography

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M-Mode Echocardiography

• John N. Hamaty D.O.
• SJHG

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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

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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.

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Improving Temporal Resolution

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

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Mitral Valve Disease

• M-Mode Echo

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Anterior Mitral Valve Prolapse(Mid-Late Systole)
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Mitral Stenosis
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Aortic Insufficiency with fluttering of Mitral
Valve
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Mitral Valve Endocarditis
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Aortic Valve Disease

• M-Mode Echo

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Critical Aortic Stenosis
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Early closure of AV due to Severe LV dysfun
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St Jude Prosthetic Aortic Valve
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Pulmonic Valve Disease

• M-Mode Echo

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Pulmonary HTN with Flying W sign
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Left Ventricle

• M-Mode Echo

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Dilated Cardiomyopathy
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B bump due to elevated EDP
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Hypertrophic Cardiomyopathy
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Paradoxic Septal Motion
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