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HYDROSONIX
The Challenge
Hydration status is critical for thermoregulation. Dehydration can be caused by various factors, including heat and diarrhea; additionally, children in warm climates may be more susceptible to heat illness than adults. Although dehydration is treatable, it is often not detected in time. 

Our Goal
Developing a low-cost, noninvasive device to diagnose dehydration, specifically for use in young children, through the use of ultrasound.
Concentric Water Ripples
2025 SEBA Science and Technology Showcase
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2026
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Clinical Ultrasound Machine (EPIQ): used for measuring phantom stiffness and shear modulus

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Instrumentation Proof-of-Concept setup: transducers across from each other (silver) with phantom holder (brown) in between

Previous Progress Milestones
  • ​PVA phantom shear modulus is within physiological ranges
  • Phantom library expanded to include Gelatin and Agar recipes
  • Simulation modeling shows Normalized Cross-Correlation (NCC) and Time-to-Peak (TTP) data analysis yield most robust predictions
  • Instrumentation prototype demonstrates preliminary proof-of-concept (ability to detect signal through phantom)
Current Goals
  • ​Refine and iterate instrumentation prototype toward consistent measurements
  • Work towards parallel transducer configuration
  • Continue expansion of phantom library to mimic stiffness range of human tissues
  • Refine simulation to mimic instrumentation setup as closesly as possible
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Jar of phantoms

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Parallel Transducer Prototype CAD Model

Hydrosonix's Work is Divided Between Three Main Subteams

Graduate Student Lead
Currently in between grad leads

Thanks to Connor Krolak for his invaluable leadership from 2020 to 2026
Undergraduate Student Leads
Logistics: Maya Ellgass - ellgassm@uw.edu
Instrumentation: Saadgi Garg - sg140628@uw.edu
Instrumentation: Sanjana Iyer - siyer3@uw.edu
Experimentation: Becky Matthews - rsmath88@uw.edu
Concentric Water Ripples
  • Phantom Creation (wet lab)
  • Literature Research
  • EPIQ Ultrasound Measurements
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  • Prototyping
  • Signal Acquisition (function generator, oscilloscope, LabVIEW)
  • CAD Modelling
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  • MATLAB
  • Data visualization
  • Sanity-check Instrumentation team data
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