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Homemade Ultrasound Stand-Off Gel Pads: A Multi-Parameter Performance Study.

Muhammad Fiqqrie De Gracious Bin Mohd Firdaus William1,2, Nur Arisha Binti Jamil1, Sook Sam Leong1,3

  • 1Centre for Medical Imaging Studies Universiti Teknologi MARA Selangor Malaysia.

Australasian Journal of Ultrasound in Medicine
|June 8, 2026
PubMed
Summary
This summary is machine-generated.

Homemade stand-off gel pads using natural ingredients like cucumber offer a cost-effective solution for clinical ultrasound imaging. Cucumber pads demonstrated superior structural integrity and moisture retention, proving practical for medical use.

Keywords:
contamination ratehomemadeimage qualitymechanical failuremoisture lossstand‐off gel pad

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Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Materials Science

Background:

  • Clinical ultrasound imaging often relies on sterile, commercially produced stand-off gel pads.
  • These commercial pads can represent a significant cost in healthcare settings.
  • Exploring natural, low-cost alternatives is crucial for improving accessibility and reducing healthcare expenses.

Purpose of the Study:

  • To evaluate the performance and safety of homemade stand-off gel pads crafted from natural ingredients.
  • To compare the mechanical properties, moisture retention, contamination rates, and image quality of aloe vera, xanthan gum, and cucumber-based pads.
  • To determine the feasibility of these natural alternatives in clinical ultrasound applications.

Main Methods:

  • Thirty stand-off gel pads were prepared using aloe vera, xanthan gum, and cucumber.
  • Mechanical failure was assessed using tensile strength testing.
  • Moisture loss was quantified to determine drying rates.
  • Microbial contamination was evaluated via colony counting.
  • Image quality was objectively measured using a chicken breast phantom.

Main Results:

  • Significant differences were observed in compressive force resistance (p=0.044), with xanthan gum pads requiring higher force than cucumber pads (p=0.047).
  • Moisture loss varied significantly (p<0.001), with aloe vera showing higher loss (9.65%±0.15%) than xanthan gum (5.94%±0.11%) and cucumber (5.81%±0.11%).
  • Axial resolution (p=0.037), lateral resolution (p=0.029), and parenchymal striations were significantly different, with speckle artifacts noted in xanthan gum pads.

Conclusions:

  • Cucumber stand-off gel pads present a practical and viable alternative for clinical ultrasound imaging.
  • These pads exhibit favorable structural integrity, effective moisture retention, and low microbial contamination.
  • The image quality achieved with cucumber pads is comparable to conventional methods, suggesting their suitability for medical use.