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Next-Generation Hardware Advances in CT: Cardiac Applications

Authors :
Alan C. Kwan
Amir Pourmorteza
David A. Bluemke
Joao A.C. Lima
Dan Stutman
Source :
Radiology
Publication Year :
2021
Publisher :
Radiological Society of North America (RSNA), 2021.

Abstract

Impending major hardware advances in cardiac CT include three areas: ultra-high-resolution (UHR) CT, photon-counting CT, and phase-contrast CT. Cardiac CT is a particularly demanding CT application that requires a high degree of temporal resolution, spatial resolution, and soft-tissue contrast in a moving structure. In this review, cardiac CT is used to highlight the strengths of these technical advances. UHR CT improves visualization of calcified and stented vessels but may result in increased noise and radiation exposure. Photon-counting CT uses multiple photon energies to reduce artifacts, improve contrast resolution, and perform material decomposition. Finally, phase-contrast CT uses x-ray refraction properties to improve spatial and soft-tissue contrast. This review describes these hardware advances in CT and their relevance to cardiovascular imaging. © RSNA, 2020

Details

ISSN :
15271315 and 00338419
Volume :
298
Database :
OpenAIRE
Journal :
Radiology
Accession number :
edsair.doi.dedup.....c640066ec5535d301d73bd7d467e8948
Full Text :
https://doi.org/10.1148/radiol.2020192791