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Ultrasonography01:17

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Percussion is a fundamental technique used to assess the liver, spleen, and abdominal organs by tapping the abdomen and interpreting the resulting sounds. This method helps identify fluid, distention, and masses through variations in sound, such as the high-pitched tympany of air-filled areas and the dullness of solid masses. Understanding how to percuss these organs provides valuable information for healthcare professionals in diagnosing conditions early.
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Ultrasound I: Abdominal Ultrasonography01:20

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Related Experiment Video

Updated: May 27, 2025

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
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Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population.

Baptiste Dubot1, Maxime Deniau1, Donatien Ramiandrisoa2

  • 1Ecole Centrale.

Journal of Visualized Experiments : Jove
|February 17, 2025
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Summary

A new ultrasonic protocol for assessing bone health shows high reproducibility. This method can help detect individuals at risk of fragility fractures, a growing global health concern due to aging populations.

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Area of Science:

  • Orthopedics
  • Biomedical Engineering
  • Gerontology

Background:

  • Fragility fractures pose a significant global health challenge, exacerbated by an aging population.
  • Hip fracture incidence is projected to double by 2050, underscoring the need for scalable fracture risk detection.
  • Dual X-ray absorptiometry (DXA) is the standard for bone mineral density assessment but has limitations.

Purpose of the Study:

  • To present and validate a detailed measurement protocol for a bi-directional axial transmission (BDAT) ultrasonic device.
  • To assess the reproducibility of the BDAT protocol across different operators and participants.
  • To establish BDAT as a reliable screening tool for fragility fracture risk.

Main Methods:

  • A novel BDAT ultrasonic protocol was developed, utilizing a forearm probe and a guided interface.
  • The protocol involves real-time acquisition of bone parameters: vFAS, vA0, Ct.Th, and Ct.Po.
  • A reproducibility study involved 3 operators and 14 healthy participants, with measurements completed in approximately 5 minutes.

Main Results:

  • The BDAT protocol demonstrated good to excellent reproducibility, with intraclass correlation coefficients (ICC) ranging from 0.76 to 0.91.
  • Standard deviations for key parameters were consistently below 10% of the total clinical range.
  • The protocol proved robust across both expert and novice operators.

Conclusions:

  • The detailed BDAT ultrasonic protocol is reproducible and robust for assessing bone health at the distal radius.
  • This ultrasonic method offers a promising, operator-independent alternative to DXA for large-scale fragility fracture screening.
  • BDAT technology can aid in identifying at-risk populations, addressing the growing burden of fragility fractures.