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Related Experiment Videos

7.5-MHz Pediatric Phased Array Transesophageal Endoscope.

Joseph E. Piel1, Robert S. Lewandowski, Peter W. Lorraine

  • 1Pediatric Cardiology UHN60, Oregon Health Sciences University, 3181 SW Sam Jackson Park Rd., Portland, OR 97201-3098.

Echocardiography (Mount Kisco, N.Y.)
|November 1, 1996
PubMed
Summary

This study introduces miniaturized transesophageal echocardiography transducers for neonatal patients, enabling high-resolution imaging and guiding interventions in infants as small as 1.9 kg.

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Area of Science:

  • Medical Imaging
  • Pediatric Cardiology
  • Echocardiography

Background:

  • Phased array transesophageal echocardiography offers high detail and contrast resolution.
  • Existing technology was not optimized for neonatal patients.

Purpose of the Study:

  • To adapt phased array transesophageal echocardiography for neonatal use.
  • To evaluate the performance of miniaturized transducers in infants.

Main Methods:

  • Developed prototype 64-element, 7.5-MHz phased array transducers.
  • Housed transducers in 6.2-mm endoscope shafts for commercial imaging systems.
  • Addressed challenges in miniaturizing electrical connections.

Main Results:

  • Demonstrated very good structural resolution and excellent sensitivity for color flow imaging and continuous-wave Doppler.

Related Experiment Videos

  • Successfully used transducers on patients as small as 1.9 kg.
  • Utilized devices as anatomical guides during catheter-based interventions and congenital heart surgery.

    • Conclusions:

    • Miniaturized transesophageal echocardiography transducers extend clinical benefits to neonatal patients.
    • The developed technology provides high-quality imaging for pediatric cardiac interventions.