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Skin Cancer “Reflection” Detection

by Medindia Content Team on  June 30, 2003 at 4:48 PM General Health News   - G J E 4
Skin Cancer “Reflection” Detection
Doctors agree that early detection is important for preventing disease. In the future, skin cancer detection may be as easy as mirrors with no tricks, just light.Jim Hattaway is a nine-year survivor of melanoma. He's lucky doctors were able to treat him despite a delayed diagnosis. "They never found a primary, which is what you call the skin cancer as it first forms on the surface of the skin. It had already gotten into my lymph system," he says.
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Now, technology called photonics may help doctors detect skin cancer much sooner. Optical scientists says it works similarly to ultrasound. "When you do ultrasound, you're measuring the time of the sound as you're imaging, where in optics, we're measuring, in a way, the time of the light to go through some tissue."

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Scientists demonstrated with an onion how infrared light is reflected off skin. The light travels through cables into a detector that scans the image into a computer.

"If you have cancer, you could see how these layers are being deformed or cancelled out. So, we expect a layer here and we don't see that layer. Well, we know there's cancer being formed there," they say.

Researchers says it will be at least five years before the technique is perfected and tested in clinical trials.
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