The U.S. Food and Drug Administration (FDA) has cleared a new portfolio of CT scanners developed by GE Healthcare for use in performing radiation therapy (RT) simulation procedures.
The new scanners are wide-bore models and include the Discovery CT590 RT and Optima CT580 RT. Discovery CT590 RT features an automated 4D video organ motion recording feature that captures organ movement to better adapt future radiation therapy treatments.
The new RT scanners are also available for interventional and bariatric CT procedures, and Discovery CT590 RT includes GE's adaptive statistical iterative reconstruction (ASIR) dose-reduction protocol.
The new units were launched at last week's American Association of Physicists in Medicine (AAPM) and Canadian Organization of Medical Physicists (COMP) joint meeting in Vancouver.
![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)
