Quantum proof – Study 1
Objectives
To compare lung parenchyma analysis on ultra-high resolution (UHR) images of a photon-counting CT (PCCT) scanner with that of high-resolution (HR) images of an energy-integrating detector CT (EID-CT).
Conclusion
The UHR scanning mode of PCCT allowed a more precise depiction of CT features of interstitial lung diseases (ILDs) and reclassification of ILD patterns with a significant reduction in radiation dose.
Quantum proof – Study 2
Purpose
To determine the diagnostic accuracy of ultrahigh-resolution (UHR) coronary CT angiography (CCTA) in the detection of CAD compared with the reference standard of invasive coronary angiography (ICA).
Conclusion
UHR photon-counting CCTA provided high diagnostic accuracy in the detection of CAD in a high-risk population, including subjects with severe coronary calcification or prior stent placement.
Fig 1 - Ultrahigh-resolution (UHR) coronary CT angiography (CCTA) in an 85-year-old man before transcatheter aortic valve replacement. Despite a stent in the right coronary artery and very severe coronary sclerosis with an Agatston score of 4162, diagnostic visualization of the coronary arteries succeeded, and obstructive coronary artery disease was excluded from CT images. (A) Three-dimensional cinematic rendering of the heart. The stent (arrowhead) is visible in the middle segment of the right coronary artery. (B) UHR CCTA with 0.2-mm axial sections. The lumen (arrow) of the severely calcified distal left anterior descending artery can be assessed without artifacts. (C) Curved multiplanar reformations of the right coronary artery with a diagnostic display of the stent lumen (arrowhead). (D) Invasive coronary angiography enables the exclusion of in-stent stenosis.
Quantum proof – Study 3
Changing the future of PCI - Ultra high-resolution stent imaging.
“I believe that in the near future, coronary CT angiography with photon counting. CT technology the ultra-high resolution mode will be the recommended imaging.method for coronary stent follow-up imaging.”
Prof. Hatem Alkadhi, MD, University Hospital Zurich, Switzerland
Quantum proof – Study 3
Changing the future of PCI - Ultra high-resolution stent imaging.
“I believe that in the near future, coronary CT angiography with photon counting. CT technology the ultra-high resolution mode will be the recommended imaging.method for coronary stent follow-up imaging.”
Prof. Hatem Alkadhi, MD, University Hospital Zurich, Switzerland
Quantum proof – Study 4
![](https://marketing.webassets.siemens-healthineers.com/353e95ab5c31f992/9682150f1fd8/v/c3428ad354d5/QUantum-proof-4.png)