Dual-Energy CT: New Horizon in Medical Imaging
Korean Journal of Radiology
; : 555-569, 2017.
Article
in En
| WPRIM
| ID: wpr-118266
Responsible library:
WPRO
ABSTRACT
Dual-energy CT has remained underutilized over the past decade probably due to a cumbersome workflow issue and current technical limitations. Clinical radiologists should be made aware of the potential clinical benefits of dual-energy CT over single-energy CT. To accomplish this aim, the basic principle, current acquisition methods with advantages and disadvantages, and various material-specific imaging methods as clinical applications of dual-energy CT should be addressed in detail. Current dual-energy CT acquisition methods include dual tubes with or without beam filtration, rapid voltage switching, dual-layer detector, split filter technique, and sequential scanning. Dual-energy material-specific imaging methods include virtual monoenergetic or monochromatic imaging, effective atomic number map, virtual non-contrast or unenhanced imaging, virtual non-calcium imaging, iodine map, inhaled xenon map, uric acid imaging, automatic bone removal, and lung vessels analysis. In this review, we focus on dual-energy CT imaging including related issues of radiation exposure to patients, scanning and post-processing options, and potential clinical benefits mainly to improve the understanding of clinical radiologists and thus, expand the clinical use of dual-energy CT; in addition, we briefly describe the current technical limitations of dual-energy CT and the current developments of photon-counting detector.
Key words
Full text:
1
Database:
WPRIM
Main subject:
Uric Acid
/
Xenon
/
Diagnostic Imaging
/
Radiation Exposure
/
Filtration
/
Iodine
/
Lung
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
Korean Journal of Radiology
Year:
2017
Document type:
Article