Smartphone app may help spot stroke symptoms as they occur

New York: A new smartphone application may help people who are having a stroke or their family and caregivers recognise common stroke symptoms in real time, prompting them to quickly call healthcare providers.
Called FAST.AI, the app might be as accurate at diagnosing stroke as a neurologist, which may minimise the long-term effects of a stroke and improve chances for a full recovery, preliminary research suggests.
FAST.AI is a fully automated smartphone application for detection of severe stroke using machine learning algorithms to recognise facial asymmetry (drooping of the muscles in the face), arm weakness and speech changes — all common stroke symptoms.
The smartphone application uses a facial video of the patient to examine 68 facial landmark points; sensors that measure arm movement and orientation; and voice recordings detect speech changes. Information from each test was sent to a database server for analysis.
“Early results confirm the app reliably identified acute stroke symptoms as accurately as a neurologist, and they will help to improve the app’s accuracy in detecting signs and symptoms of stroke,” said study author Radoslav I. Raychev, a clinical professor of neurology and a vascular neurologist at the University of California at Los Angeles.
Also Read Pregnant woman credits Apple Watch for saving her life Researchers validated FAST.AI’s performance by testing nearly 270 patients with a diagnosis of acute stroke within 72 hours of hospital admission at four major metropolitan stroke centres from July 2021 to July 2022.