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Ultrasound and the developing central nervous system.

M C Ziskin1, S B Barnett

  • 1Richard J. Fox Center for Biomedical Physics, Temple University School of Medicine, Philadelphia, PA 19140, USA. ziskin@astro.ocis.temple.edu

Ultrasound in Medicine & Biology
|July 31, 2001
PubMed
Summary
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This study examines the risks of diagnostic ultrasound bioeffects, especially in fetal neurosonography. It reviews safety data and proposes scanning strategies to minimize adverse outcomes in medical ultrasound applications.

Area of Science:

  • Medical Imaging
  • Biophysics
  • Neurology

Background:

  • Diagnostic ultrasound, particularly ultrasonography, carries potential risks of adverse biologic effects.
  • Assessing these risks is crucial in neurosonography due to the sensitivity of fetal central nervous system tissues.
  • Modern ultrasound equipment's acoustic output levels necessitate careful evaluation of bioeffects.

Purpose of the Study:

  • To evaluate the potential biologic effects of diagnostic ultrasound in medical applications, with a focus on neurosonography.
  • To review safety data and discuss risk assessment factors, including tissue sensitivity and clinical practice standards.
  • To present findings from a symposium on ultrasound and the developing fetal central nervous system.

Main Methods:

  • Review of presentations from a World Federation for Ultrasound in Medicine and Biology (WFUMB) safety meeting.

Related Experiment Videos

  • Discussion of physics principles for estimating ultrasound-induced heating.
  • Inclusion of laboratory and human study data on bioeffects.
  • Measurement of ultrasound-induced intracranial temperature increases in animal fetuses.

    • Main Results:

    • Key issues involve acoustic output levels from diagnostic ultrasound equipment and tissue sensitivity.
    • Biologic effects identified from laboratory and human studies are critical for risk assessment.
    • Practical scanning strategies were proposed to minimize risks in neurosonographic practices.

    Conclusions:

    • Minimizing risks associated with diagnostic ultrasound in neurosonography is essential.
    • Continued evaluation of bioeffects and safety of ultrasound is supported by organizations like WFUMB.
    • Implementing practical scanning strategies can reduce the likelihood of adverse outcomes in clinical neurosonography.