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ASFmeter: A Portable A-Mode Ultrasound Device for Abdominal Subcutaneous Fat Thickness Measurement.

Hongyang Zhao1, Ran Liu1,2, Guangfei Li1,3,4

  • 1College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.

Bioengineering (Basel, Switzerland)
|June 26, 2025
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Summary

A new portable ultrasound device, the ASFmeter, accurately measures abdominal subcutaneous fat (ASF) thickness. This cost-effective tool aids in obesity assessment and personal health monitoring.

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a-mode ultrasoundabdominal subcutaneous fat (ASF) thicknessbody mass index (BMI)measurement

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Area of Science:

  • Biomedical Engineering
  • Medical Devices
  • Diagnostic Tools

Background:

  • Obesity is a global health issue associated with increased chronic disease risk.
  • Abdominal subcutaneous fat (ASF) thickness is a key obesity indicator.
  • Current ASF measurement methods are often complex and not widely accessible.

Purpose of the Study:

  • To develop a portable, low-cost device for rapid ASF thickness measurement.
  • To validate the accuracy of the developed device against conventional ultrasound.
  • To assess the correlation of ASF thickness with obesity indicators.

Main Methods:

  • Development of the ASFmeter, a portable A-mode ultrasound device.
  • Comparison of ASFmeter measurements with B-mode ultrasound in 40 participants.
  • Statistical analysis of ASF thickness correlation with body weight, abdominal circumference, and BMI.

Main Results:

  • The ASFmeter demonstrated high accuracy and agreement with B-mode ultrasound (R² = 0.94).
  • Significant differences in ASF thickness were found across various BMI groups.
  • The device confirmed ASF thickness as a reliable indicator of obesity.

Conclusions:

  • The ASFmeter provides a user-friendly, portable, and affordable solution for ASF measurement.
  • This device facilitates convenient personal health monitoring and obesity risk assessment.
  • The ASFmeter has potential for broad application in home-based health management.