Siemens Healthcare of Malvern, PA, will present its new Optimum Contrast software at Stanford University's International Symposium on Multidetector-Row CT in Las Vegas this week.
Optimum Contrast software works with Siemens' recently introduced new dual-source CT system, Somatom Definition, which features two x-ray tubes that simultaneously generate different energies.
The software contains newly developed image optimization algorithms, which analyze 3D data and determine the optimal mix of high and low voltage from the two x-ray tubes for enhanced image voxels to create multicontrast images. As a result, the images of soft tissue and vascular structures that contain contrast medium are more recognizable, according to Siemens.
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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)
