TY - JOUR
T1 - Next-generation hardware advances in CT
T2 - Cardiac applications
AU - Kwan, Alan C.
AU - Pourmorteza, Amir
AU - Stutman, Dan
AU - Bluemke, David Alan
AU - Lima, João A.C.
N1 - Funding Information:
A.C.K. supported by the National Institutes of Health (grant T32HL116273) and Doris Duke Charitable Foundation (grant 2020059). J.A.C.L. supported by Canon Medical Systems, Astra Zeneca, and MedImmune.
Publisher Copyright:
© RSNA, 2020.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
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U2 - 10.1148/RADIOL.2020192791
DO - 10.1148/RADIOL.2020192791
M3 - Article
C2 - 33201793
AN - SCOPUS:85099008059
SN - 0033-8419
VL - 298
SP - 3
EP - 17
JO - RADIOLOGY
JF - RADIOLOGY
IS - 1
ER -