An artificial intelligence (AI) platform designed to identify a broad range of acute neurological illnesses has identified diseases in CT scans faster than human diagnosis. “With a total processing and interpretation time of 1.2 seconds, such a triage system can alert physicians to a critical finding that may otherwise remain in a queue for minutes to hours,” says senior author Eric Oermann, MD, Instructor in the Department of Neurosurgery at the Icahn School of Medicine at Mount Sinai. “We’re executing on the vision to develop artificial intelligence in medicine that will solve clinical problems and improve patient care.”
This is the first study to utilize AI for detecting a wide range of acute neurologic events and to demonstrate a direct clinical application. Researchers used 37,236 head CT scans to train a deep neural network to identify whether an image contained critical or non-critical findings. The platform was then tested in a blinded, randomized controlled trial in a simulated clinical environment where it triaged head CT scans based on severity. The software was tested for how quickly it could recognize and provide notification versus the time it took a radiologist to notice a disease. The average time for the computer algorithm to preprocess an image, run its inference method, and, if necessary, raise an alarm was 150 times shorter than for physicians to read the image.
Physician vs. AI
This study used “weakly supervised learning approaches,” which built on the research team’s expertise in natural language processing and the Mount Sinai Health System’s large clinical datasets. Dr. Oermann says the next phase of this research will entail enhanced computer labeling of CT scans. They also want to shift to “strongly supervised learning approaches” and novel techniques for increasing data efficiency. Researchers estimate the goal of re-engineering the system with these changes will be accomplished within the next two years.
“The expression ‘time is brain’ signifies that rapid response is critical in the treatment of acute neurological illnesses. So any tools that decrease time to diagnosis may lead to improved patient outcomes,” says Joshua Bederson, MD, Professor at the Department of Neurosurgery at Mount Sinai Health System.
“The application of deep learning and computer vision techniques to radiological imaging is a clear imperative for 21st century medical care,” says Burton Drayer, MD, CEO of the Mount Sinai Doctors Faculty Practice.
Source: Mount Sinai Health System