AI beats experts in detecting cause of blindness in babies

AI beats experts in detecting cause of blindness in babies

 
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New York, May 3: An algorithm that uses Artificial Intelligence (AI) can automatically and more accurately diagnose a potentially devastating cause of childhood blindness than some expert physicians, says a study.

The finding, published in the journal JAMA Ophthalmology, suggests that AI could help overcome shortage of physicians trained in disease diagnosis. 

The researchers believe that the new algorithm could help prevent blindness in more babies with the disease, called retinopathy of prematurity, or ROP. 

While the algorithm accurately diagnosed the condition in images of infant eyes 91 per cent of the time, a team of physicians with ROP expertise who examined the same images had an average accuracy rate of 82 per cent, the study said.

"There's a huge shortage of ophthalmologists who are trained and willing to diagnose ROP. This creates enormous gaps in care, even in the US, and sadly leads too many children around the world to go undiagnosed," said the study's co-lead researcher Michael Chiang of Oregon Health and Science University in Portland, US. 

"This algorithm distills the knowledge of ophthalmologists who are skilled at identifying ROP and puts it into a mathematical model so clinicians who may not have that same wealth of experience can still help babies receive a timely, accurate diagnosis," said the other lead researcher Jayashree Kalpathy-Cramer of Massachusetts General Hospital.

Retinopathy of prematurity is caused by abnormal blood vessel growth near the retina, the light-sensitive portion in the back of an eye. The condition is common in premature babies and is the leading cause of childhood blindness globally.

The disease is diagnosed by visually inspecting a baby's eye. Physicians typically use a magnifying device that shines light into a baby's dilated eye, but that approach can lead to variable and subjective diagnoses.

This algorithm uses deep learning, a form of AI that mimics how humans perceive the world through vision, including identifying objects. 

The researchers at Massachusetts General Hospital combined two existing AI models to create the algorithm, while the Oregon Health and Science University researchers developed extensive reference standards to train it.

They first trained the algorithm to identify retinal vessels in more than 5,000 pictures taken during infant visits to an ophthalmologist. 





   







Next, they trained it to differentiate between healthy and diseased vessels. Afterward, they compared the algorithm's accuracy with that of trained experts who viewed the same images and discovered it performed better than most of the expert physicians.



Source:http://indialife.us/article.php?id=98218

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