Next-Generation Hardware Advances in CT: Cardiac Applications.
Radiology
; 298(1): 3-17, 2021 01.
Article
em En
| MEDLINE
| ID: mdl-33201793
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tomografia Computadorizada por Raios X
/
Cardiopatias
Limite:
Humans
Idioma:
En
Revista:
Radiology
Ano de publicação:
2021
Tipo de documento:
Article