Engineering
Impedance Spectroscopy of Tissue for Non-Invasive Edema Detection
Quick fact
Edema, or fluid accumulation in tissues, changes the electrical impedance of the tissue. Impedance spectroscopy can detect this shift by measuring how tissue's resistance and reactance vary across frequencies, enabling detection of edema before it becomes clinically apparent.
Why this is interesting
You've probably seen a doctor press a finger into a swollen ankle—but what if a simple electrical patch could detect that fluid buildup before it's even visible?