Artificial intelligence (AI) software developer Zebra Medical Vision and Israeli health system Clalit Health Services are directing attention to two research projects being presented at the upcoming RSNA 2018 meeting in Chicago.
The first study involves a retrospective cohort of 48,227 individuals with abdominal CT studies. Clalit researchers will report on Wednesday that a combination of automatic Zebra Medical algorithms was equivalent to the contemporary Fracture Risk Assessment Tool (FRAX) scoring system in providing risk stratification for major and hip-specific osteoporotic hip fractures, Zebra Medical said.
A second study to be presented on Tuesday morning showed that a coronary calcium score derived from nongated CT scans by Zebra Medical's algorithms led to 4.5% better risk classification for cardiac events, according to the company.
![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)
