JLK stacks stroke AI nod in Japan, launches 5th module for MRI scans

JLK has launched its AI-powered MRI stroke analysis software, JLK-DWI, in Japan after securing regulatory approval, the company said Tuesday.

The tool analyzes diffusion-weighted MRI scans to detect hyper-intensity areas—key markers of acute ischemic stroke—and calculates lesion volume.

JLK-DWI joins four other stroke-related AI modules already approved in Japan: CT perfusion (JLK-CTP), MR perfusion (JLK-PWI), non-contrast CT (JLK-NCCT), and most recently, JLK-FLAIR, which analyzes high-signal intensity areas in MRI FLAIR (fluid-attenuated inversion recovery) scans. 

The company plans to complete approvals for the remaining modules to offer a full-stack stroke AI solution.

JLK cited strong demand from Japan’s aging population and positive clinical feedback during local testing. Professor Manabu Inoue of Japan’s National Cerebral and Cardiovascular Center recently highlighted the software at STROKE 2025 JAPAN and will lead a Korea-Japan webinar on its clinical use this month.

To support the rollout, JLK said it will strengthen its local supply chain by partnering with hospitals and medical device distributors.