Meta Imaging Solutions of Columbia, MO, has received 510(k) clearance from the U.S. Food and Drug Administration for its Chrysalis breast displacement system.
Chrysalis is made of soft, padded vinyl and is designed to decrease breast radiation dose during CT coronary angiography and CT of the abdomen. The breasts are physically displaced from the imaging plane and secured with the Chrysalis device.
The company cited a randomized trial that showed median dose reductions of 88% in the periareolar region and 95% in the upper quadrants, while achieving enhanced image quality in patients with large breasts.
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![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)
