Caltech researchers develop technique to focus light inside biological tissue
Imagine if doctors could perform surgery without ever having to cut through your skin. Or if they could diagnose cancer by seeing tumors inside the body with a procedure that is as simple as an ultrasound. Thanks to a technique developed by engineers at Continue reading →
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A new imaging technique could help doctors and researchers more accurately assess the extent of nerve damage and healing in a live patient. Researchers at Laval University in Québec and Harvard Medical School in Boston aimed lasers at rats’ damaged sciatic nerves to create images of the individual neurons’ insulating sheath called myelin. Physical trauma, repetitive stress, bacterial infections, genetic mutations, and neurodegenerative disorders such as multiple sclerosis can all cause neurons to lose myelin. The loss slows or halts the nerve’s transmission of electrical impulses and can result in symptoms such as numbness, pain, or poor muscle control.
Using their images of neurons, the researchers measured the thickness of the myelin at different locations Continue reading →