Open AccessClinical Applications of Dual-Energy CT
Author(s) -
Saira Hamid,
Muhammad Umer Nasir,
Aaron So,
Gordon Andrews,
Savvas Nicolaou,
Sadia Raheez Qamar
Publication year - 2021
Publication title -
korean journal of radiology/korean journal of radiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.08
H-Index - 57
eISSN - 2005-8330
pISSN - 1229-6929
DOI - 10.3348/kjr.2020.0996
Subject(s) - digital enhanced cordless telecommunications , attenuation , medicine , scanner , energy (signal processing) , effective atomic number , nuclear medicine , radiology , biomedical engineering , medical physics , optics , physics , computer science , telecommunications , quantum mechanics , wireless
Dual-energy CT (DECT) provides insights into the material properties of tissues and can differentiate between tissues with similar attenuation on conventional single-energy imaging. In the conventional CT scanner, differences in the X-ray attenuation between adjacent structures are dependent on the atomic number of the materials involved, whereas in DECT, the difference in the attenuation is dependent on both the atomic number and electron density. The basic principle of DECT is to obtain two datasets with different X-ray energy levels from the same anatomic region and material decomposition based on attenuation differences at different energy levels. In this article, we discuss the clinical applications of DECT and its potential robust improvements in performance and postprocessing capabilities.