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Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics1990; 11(3); 243-249; doi: 10.1088/0143-0815/11/3/007

A contact method for the assessment of ultrasonic velocity and broadband attenuation in cortical and cancellous bone.

Abstract: A portable system using a direct contact for the measurement of ultrasonic velocity and broadband attenuation in bone is described (contact ultrasonic bone analyser, CUBA). Soft-tissue compensation is performed using an ultrasonic pulse-echo technique. CUBA has been successfully validated using reference materials, the precision of velocity and broadband attenuation measurements being typically 0.2% and 0.5% respectively. The clinical reproducibility has been assessed on the equine third metacarpal bone. The reproducibility of velocity measurement is typically 0.5% for cortical bone and 1% for cancellous bone. For broadband attenuation the reproducibility is typically 7% for cortical bone and 6% for cancellous bone. The lower reproducibility of the attenuation data is attributed to the high sensitivity to variations in the material properties of bone with small changes in transducer positioning. Coupling difficulties through an intact equine coat have been overcome and the system may now be assessed in the clinical environment, in both human and animal populations.
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Publication Date: 1990-08-01 PubMed ID: 2245589DOI: 10.1088/0143-0815/11/3/007Google Scholar: Lookup
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  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research paper discusses the development and testing of a portable system, named CUBA (contact ultrasonic bone analyzer), designed to measure the ultrasonic velocity and broadband attenuation of both cortical and cancellous bones, taking into account the compensation of soft tissues.

Objective and Method

  • The main objective of this study was to create a portable device capable of measuring ultrasonic velocity and broadband attenuation in different types of bone structures. This device, known as the contact ultrasonic bone analyser (CUBA), is designed to make direct contact with the bone to get accurate readings. Soft-tissue compensation—accounting for the influence of soft tissues on the measurements—is carried out using an ultrasonic pulse-echo technique.
  • The device was tested and validated against reference materials, and subsequently, its clinical reproducibility was assessed on the equine third metacarpal bone.

Findings

  • In the validation tests using reference materials, the precision of the velocity and broadband attenuation measurements was shown to be quite high, being typically 0.2% and 0.5% respectively.
  • When tested on the equine third metacarpal bone, the CUBA system had a reproducibility of velocity measurement of roughly 0.5% for cortical (hard, compact) bone and 1% for cancellous (spongy) bone.
  • For broadband attenuation, the reproducibility was typically around 7% for cortical bone and 6% for cancellous bone. These slightly lower reproducibility figures were attributed to a high sensitivity to small changes in bone material properties and transducer positioning.
  • The researchers also had to overcome coupling difficulties while testing through an intact equine coat, but the study argues that these issues have been sufficiently resolved.

Implications

  • Following successful testing and validation, the system is now ready to be assessed in a clinical environment, not only on humans but also on animals. This shows promising potential for CUBA, as it could be used in various fields of study and in different contexts, including in the veterinarian field.

Cite This Article

APA
Langton CM, Ali AV, Riggs CM, Evans GP, Bonfield W. (1990). A contact method for the assessment of ultrasonic velocity and broadband attenuation in cortical and cancellous bone. Clin Phys Physiol Meas, 11(3), 243-249. https://doi.org/10.1088/0143-0815/11/3/007

Publication

Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics
ISSN: 0143-0815
NlmUniqueID: 8209031
Country: England
Language: English
Volume: 11
Issue: 3
Pages: 243-249

Researcher Affiliations

Langton, C M
  • Applied Physics Department, Sheffield City Polytechnic, UK.
Ali, A V
    Riggs, C M
      Evans, G P
        Bonfield, W

          MeSH Terms

          • Animals
          • Bone Density
          • Equipment Design
          • Horses / physiology
          • Reproducibility of Results
          • Ultrasonography / veterinary

          Citations

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