Medical research

Photoacoustic endoscopy could improve Crohn's disease treatment

A newly developed endoscope could give doctors a better view of intestinal changes caused by Crohn's disease. This additional information would help improve treatment of the painful and debilitating form of inflammatory bowel ...

Cancer

Novel imaging technology may reduce biopsies for breast tumors

In American women, breast cancer is the most common cancer and the second-leading cause of cancer death. While routine screening helps to detect breast cancer, existing technology frequently identifies suspicious lesions ...

Neuroscience

Shining a light on the nervous system to thwart disease

Researchers from Case Western Reserve University School of Medicine, Vanderbilt University, and University of Pittsburgh have received a four-year, $9 million grant from the National Institutes of Health to develop enhanced ...

Cancer

Detecting, diagnosing women's cancers in new ways

The National Institutes of Health has awarded a Washington University in St. Louis faculty member in the School of Engineering & Applied Science a total of $1.3 million to study new imaging techniques designed to better fight ...

Ophthalmology

A pocket-sized retina camera, no dilating required

It's the part of the eye exam everyone hates: the pupil-dilating eye drops. The drops work by opening the pupil and preventing the iris from constricting in response to light and are often used for routine examination and ...

Diseases, Conditions, Syndromes

High-energy protocol improves photoaged facial skin

(HealthDay)—For patients with mild-to-moderate facial wrinkles, a high-energy protocol with combined bipolar radiofrequency and infrared light energies improves facial skin, according to a study published online Feb. 8 ...

Cancer

Infrared light to detect early signs of esophageal cancer

Scientists have developed an endoscope that uses near-infrared light to spot early warning signs of oesophageal - food pipe - cancer, according to research published in the Journal of Biomedical Optics today.

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Infrared

Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (100 µm - 1 mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm).

Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux, which includes infrared (47% share of the spectrum), visible (46%), and ultra-violet (only 6%) light. Bright sunlight provides luminance of approximately 100,000 candela per square meter at the Earth's surface.

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