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Anemia is a disease that affects hemoglobin levels and affects more than two billion people worldwide. Possible effects include intense fatigue, heart problems and complications of pregnancy.
To diagnose anemia, blood tests are needed, which can prove more difficult in the poorest communities.
Technology can be an ally in the early diagnosis of the disease. The team led by Wilbur Lam of Emory University in Altanta, USA, has created an application that can diagnose the disease by badyzing the color of a person's nails in a photograph.
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Previous studies have already shown that the degree of pallor of certain body tissues, such as nails, would be good indication of anemia.As the skin under the nails does not contain any pigment, hemoglobin – the oxygenating pigment in the blood – is the main source of color.
The application allows users to obtain a measurement of hemoglobin in a few seconds, photographing their nails and touching the screen. to indicate where they are in the picture. The application uses photo metadata to take into account the ambient lighting conditions.
"As only one smartphone is required, our application allows anyone to do anemia screening at any time." Is to download the application "
It goes without saying that the Application does not have the same level of accuracy of a blood test because the measurement relies on a database of nails pictures of people with known hemoglobin levels.
However, the system is sensitive enough to be used in screening groups at high risk of anemia, such as the elderly, pregnant women and young children.
The idea is that the application evolves towards personalization with the measurements of a specific person, which makes it useful for monitoring anemia at home painlessly. The application requires a series of tests before being made available to the public in the application stores.
Lam and his team are also studying ways to use smartphones to evaluate jaundice, yellowing of the skin and eyes caused by liver disease.
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