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Ultrasonic Assessment of Myocardial Microstructure
10:53

Ultrasonic Assessment of Myocardial Microstructure

Published on: January 14, 2014

[Efficacy of integrated backscatter imaging by acoustic densitometry for identifying ultrasonic tissue

Susumu Nishikawa1, Shuji Katoh, Hiroki Takada

  • 1Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University, Hashimoto-cho 3-23, Gifu, Gifu 500-8523.

Journal of Cardiology
|April 5, 2003
PubMed

Insights

Acoustic densitometry and contrast echocardiography can differentiate left ventricular apical thrombus from papillary muscle. This ultrasonic tissue characterization method aids in accurate diagnosis.

Area of Science:

  • Cardiovascular Imaging
  • Diagnostic Ultrasound
  • Medical Technology

Background:

  • Distinguishing between left ventricular apical thrombus and papillary muscle is crucial for patient management.
  • Echocardiography is a primary tool for cardiac imaging, but differentiating certain lesions can be challenging.

Observation:

  • Two cases presented with high echoic lesions in the left ventricle apex.
  • Acoustic densitometry revealed lower integrated backscattering amplitude in Case 1 (thrombus) compared to myocardium.
  • Contrast echocardiography showed a perfusion defect in Case 1 but not in Case 2.

Findings:

  • The high echoic lesion in Case 1 was identified as thrombus, while in Case 2 it was identified as papillary muscle.
  • Contrast echocardiography time-intensity curve analysis demonstrated distinct amplitude patterns for thrombus versus myocardium.
  • Ultrasonic tissue characterization using these methods proved effective for differentiating the lesions.

Implications:

  • This technique enhances the diagnostic accuracy of echocardiography for apical cardiac lesions.
  • Improved differentiation can lead to more appropriate treatment strategies for patients with left ventricular abnormalities.
  • The study highlights the utility of advanced echocardiographic techniques in clinical practice.

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