Cardiac imaging software developer Circle Cardiovascular Imaging subsidiary Circle Neurovascular Imaging has received clearance for its StrokeSens acute stroke detection software from Health Canada and the Therapeutic Goods Administration (TGA) in Australia.
The artificial intelligence (AI)-based software is designed to provide automated detection and notification of suspected anterior circulation large-vessel occlusions (LVOs) on contrast-enhanced CT angiography exams, according to the vendor.
The algorithm can also analyze noncontrast-enhanced CT exams to provide automated Alberta Stroke Program Early CT Scoring (ASPECTS) assessment of regions with suspected acute ischemic tissue, Circle Neurovascular said.
With the new clearances, StrokeSens is now available for clinical use in the European Union, U.K., Canada, and Australia. It's also available in the U.S. for detection of LVO only, the company said.
![Axial images from unenhanced calcium score cardiac CT (left) and curved planar reformation images from CT angiography (right) show that higher long-term exposure to air pollution is associated with greater coronary artery calcium and more obstructive coronary artery disease (CAD). Top row: Images in a 68-year-old male patient with higher 10-year mean ambient air pollution exposure (7.9 μg/m3 for particulate matter measuring ≤2.5 μm in diameter [PM2.5] and 17.4 parts per billion [ppb] for NO2) with extensive CAD (coronary artery calcium score [CACS] >1,000 and obstructive CAD [≥70% diameter stenosis]). Bottom row: Images in a 57-year-old female patient with lower 10-year mean ambient air pollution exposure (6.3 μg/m3 for PM2.5 and 4.6 ppb for NO2) with no CAD (CACS = 0 and no obstructive stenosis).](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/06/hanneman.r6SMLzkezo.png?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
