For centuries, humans have looked for signs of diseased tissue and organs by tapping the outside of the body to measure stiffness. Obviously such a method is only so effective, especially when trying to evaluate someone's liver, say, or heart. And more modern biopsies, while highly effective, are invasive procedures that involve removing tissue for examination.
Since 2007, researchers at the Mayo Clinic in Rochester, Minn., have been working with magnetic resonance elastography (MRE), a medical imaging technique developed to non-invasively diagnose and monitor disease.
The device they use, MR-Touch, uses low-frequency sound waves for just 15 seconds at … Read more