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Say ‘aah’ and get a diagnosis on the spot: is this the future of health?

August 13, 2024
in Mathematics
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Computerised tongue analysis
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A computer algorithm has achieved a 98% accuracy in predicting different diseases by analysing the colour of the human tongue.

Computerised tongue analysis

Credit: Middle Technical University

A computer algorithm has achieved a 98% accuracy in predicting different diseases by analysing the colour of the human tongue.

The proposed imaging system developed by Iraqi and Australian researchers can diagnose diabetes, stroke, anaemia, asthma, liver and gallbladder conditions, COVID-19, and a range of vascular and gastrointestinal issues.

Engineering researchers from Middle Technical University (MTU) and the University of South Australia (UniSA) achieved the breakthrough in a series of experiments where they used 5260 images to train machine learning algorithms to detect tongue colour.

Two teaching hospitals in the Middle East supplied 60 tongue images from patients with various health conditions. The artificial intelligence (AI) model was able to match the tongue colour with the disease in almost all cases.

A new paper published in Technologies outlines how the proposed system analyses tongue colour to provide on-the-spot diagnosis, confirming that AI holds the key to many advances in medicine.

Senior author, MTU and UniSA Adjunct Associate Professor Ali Al-Naji, says AI is replicating a 2000-year-old practice widely used in traditional Chinese medicine – examining the tongue for signs of disease.

“The colour, shape and thickness of the tongue can reveal a litany of health conditions,” he says.

“Typically, people with diabetes have a yellow tongue; cancer patients a purple tongue with a thick greasy coating; and acute stroke patients present with an unusually shaped red tongue.

“A white tongue can indicate anaemia; people with severe cases of COVID-19 are likely to have a deep red tongue; and an indigo or violet coloured tongue indicates vascular and gastrointestinal issues or asthma.”

In the study, cameras placed 20 centimetres from a patient captured their tongue colour and the imaging system predicted their health condition in real time.

Co-author UniSA Professor Javaan Chahl says that down the track, a smartphone will be used to diagnose disease in this way.

“These results confirm that computerised tongue analysis is a secure, efficient, user friendly and affordable method for disease screening that backs up modern methods with a centuries-old practice,” Prof Chahl says.



Journal

Technologies

DOI

10.3390/technologies12070097

Method of Research

Experimental study

Subject of Research

People

Article Title

Tongue Disease Prediction Based on Machine Learning Algorithms

Article Publication Date

28-Jun-2024

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