Spectral Computed Tomography: Fundamental Principles and Recent Developments
Korean Journal of Radiology
; : 86-96, 2021.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-875269
Biblioteca responsável:
WPRO
ABSTRACT
CT is a diagnostic tool with many clinical applications. The CT voxel intensity is related to the magnitude of X-ray attenuation, which is not unique to a given material. Substances with different chemical compositions can be represented by similar voxel intensities, making the classification of different tissue types challenging. Compared to the conventional singleenergy CT, spectral CT is an emerging technology offering superior material differentiation, which is achieved using the energy dependence of X-ray attenuation in any material. A specific form of spectral CT is dual-energy imaging, in which an additional X-ray attenuation measurement is obtained at a second X-ray energy. Dual-energy CT has been implemented in clinical settings with great success. This paper reviews the theoretical basis and practical implementation of spectral/dualenergy CT.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Idioma:
Inglês
Revista:
Korean Journal of Radiology
Ano de publicação:
2021
Tipo de documento:
Artigo