Mobile App Analyzes Nail Bed Photos to Diagnose Anemia
Science and Technology Daily, Beijing, December 6 (Reporter Zhang Mengran) According to a recent medical health report introduced by the British "Nature·Communication" magazine on the 5th, the American team of scientists developed a smart phone app that can detect anemia - by analyzing mobile phones Photo of the nail bed can detect anemia and estimate hemoglobin levels. This method is very sensitive and is expected to replace the laboratory blood tests on which the current anemia diagnosis and monitoring relies.
At present, the number of people affected by anemia worldwide exceeds 2 billion. It is generally believed that the human peripheral blood red blood cell volume is reduced, and the clinical symptom lower than the lower limit of the normal range is anemia, and because the red blood cell volume is more complicated, the hemoglobin (Hb) concentration is often replaced clinically. However, the current clinical methods for detecting hemoglobin levels require not only specialized equipment, but also trade-offs between invasiveness, accuracy, infrastructure requirements, and cost. These are problems in rural and resource-poor areas, and anemia is most common in these areas.
This time, the algorithm developed by Wilber Lyme and his colleagues at Emory University in the United States can calculate the hemoglobin concentration in the blood by analyzing the color and technical metadata of the photo of the nail bed. Using this approach, the algorithm embedded in the App only requires a mobile phone and does not require any other device to operate.
In a clinical evaluation involving 100 participants, the data showed that the App estimated the sensitivity and accuracy of hemoglobin concentration to be almost as high as the existing anemia detection diagnostic tool. A further assessment of the four participants showed that the accuracy of the App as a monitoring tool was also high.
The research team believes that the app can be used to screen for anemia in areas where specialized equipment and professionals are lacking, allowing anemia patients to remotely monitor their hemoglobin levels in less than a minute. However, further research is needed at this stage to determine the diagnostic accuracy of this method is high enough to replace blood-based anemia testing.
Source: Technology Daily
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