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Related Experiment Videos

Parameters for predicting electromagnetic lithotripter failure: quality assurance implications.

W J Davros1, B S Garra, J A Goldberg

  • 1Department of Radiology, Georgetown University Medical Center, Washington, DC.

The Journal of Stone Disease
|June 7, 1992
PubMed
Summary
This summary is machine-generated.

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Lithotripter failure during kidney stone treatment can be subtle. Reduced cavitation bubbles during treatment may predict lithotripter malfunction, aiding quality assurance.

Area of Science:

  • Biomedical Engineering
  • Urology
  • Medical Device Technology

Background:

  • Lithotripsy is widely used for renal and biliary calculi.
  • Data on lithotripter failure causes and manifestations is limited.

Purpose of the Study:

  • To investigate the causes and clinical indicators of lithotripter failure.
  • To evaluate the effectiveness of clinical parameters in predicting lithotripter malfunction.

Main Methods:

  • Review of clinical and service records for 145 Siemens Lithostar Plus treatments.
  • Analysis of shock wave generation and ultrasound probe failures.
  • Correlation of clinical parameters with lithotripter performance.

Main Results:

Related Experiment Videos

  • Eight shock wave generation failures and five ultrasound probe failures occurred.
  • Reduced sonographically evident cavitation bubbles were the most predictive clinical parameter.
  • Lack of stone fragmentation and low analgesia requirements were less reliable predictors.
  • Clinical parameters exhibited nonspecificity.

    • Conclusions:

    • Reduced cavitation bubble severity is a key indicator of potential lithotripter failure.
    • A quality assurance program using a test object hydrophone shows promise for predicting lithotripter function.
    • Proactive monitoring can help avoid compromised lithotripsy treatments.