Protocols

Dual-source PCD-CCTA delivered very good image quality, high contrast-to-noise ratio, and 95% assessability of coronary segments in a real-world multicenter setting. Coronary segment assessability remained high with low to moderate calcium burden, but declined with very high Agatston scores above 600 and with higher heart…

Higher temporal resolution with dual-source CT (66 ms) reduced motion blur and led to significantly lower CAC, AVC, and MAC scores than 125 ms reconstructions. Lower temporal resolution (125 ms) overestimated calcium burden and led to reclassification of risk categories in 4% of CAC cases and 11% of AVC cases. The study…

Compared with standard-resolution (SR) PCCTA, ultrahigh-resolution (UHR) PCCTA achieved clearly stronger correlation with invasive FFR and higher diagnostic accuracy for functionally significant stenosis. UHR-PCCTA-derived FFR maintained performance in heavily calcified and diffusely diseased vessels, where…

The study evaluates a low-dose high-resolution PCCT lung protocol in a clinical cohort, comparing it directly to standard energy-integrating CT under routine conditions. Image quality was significantly improved with PCCT, particularly when using quantum iterative reconstruction, which reduced noise and enhanced sharpness…

Compared to conventional EID-CT, PCCT enabled a reduction in effective dose of around 90%. PCCT provided noticeably sharper delineation of lung nodules and masses. Overall image quality and visualization of lung nodules were superior with PCCT compared to standard CT. Access full publication Figure 4. Matched axial CT…

The study evaluates a low-dose ultra-high-resolution (UHR) PCCT lung protocol in a clinical cohort to determine optimal reconstruction settings for image quality. It demonstrates that image quality is primarily driven by reconstruction parameters, with a 1024 matrix, 0.4 mm slice thickness, sharp lung kernel (Bl64), and…

This study used a modified chest PCCT workflow with an inspiratory scan followed by an expiratory scan 5 minutes later after IV contrast administration. The protocol was designed to derive lung morphology, vasculature, perfusion, ventilation, and late contrast enhancement from one examination. In 166 of 196 patients, all…

The study demonstrates that ultra-high-pitch PCCT can enable reliable diagnosis of acute pulmonary embolism even under free-breathing conditions. Using a low contrast volume and fast acquisition, the protocol achieves superior image quality while simultaneously reducing radiation dose compared to conventional CT. The…

Learn from one of our NAEOTOM Alpha ambassadors how to leverage the full power of photon-counting CT in practice. From live patient scanning to protocols and post-processing - this class will make you ready for the transition or support in your daily routine. Hands-on photon-counting CT class at Erasmus MC, Rotterdam,…