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Benefit of dual-layer spectral CT in emergency imaging of different organ systems
- Source :
- Clinical radiology. 75(12)
- Publication Year :
- 2019
-
Abstract
- Computed tomography (CT) has been the first choice of imaging technique in the emergency department and has a crucial role in many acute conditions. Since its implementation, spectral CT has gained widespread application with the potential to improve diagnostic performance and impact patient care. In spectral CT, images are acquired at two different energy levels allowing this technique to differentiate tissues by exploiting their energy-dependent attenuation properties. Dual-layer spectral CT provides additional information with its material decomposition applications that include virtual non-contrast imaging, iodine density, and effective atomic number (Zeff) maps along with virtual monoenergetic images without the need for preselection of a protocol. This review aims to demonstrate its added value in the emergency department in different organ systems enabling better evaluation of inflammatory and ischaemic conditions, assessment of organ perfusion, tissue/lesion characterisation and mass detection, iodine quantification, and the use of lower volumes of contrast medium. With improved diagnostic performance, spectral CT could also aid in rapid decision-making to determine the treatment method in many acute conditions without increased radiation dose to the patient.
- Subjects :
- business.industry
Radiation dose
Dual layer
Treatment method
Contrast Media
General Medicine
Emergency department
030218 nuclear medicine & medical imaging
03 medical and health sciences
Contrast medium
0302 clinical medicine
030220 oncology & carcinogenesis
Medicine
Humans
Radiographic Image Interpretation, Computer-Assisted
Radiology, Nuclear Medicine and imaging
business
Material decomposition
Emergency Service, Hospital
Tomography, X-Ray Computed
Effective atomic number
Organ system
Biomedical engineering
Subjects
Details
- ISSN :
- 1365229X
- Volume :
- 75
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Clinical radiology
- Accession number :
- edsair.doi.dedup.....4fe1fb78708008b1d2b15b2aa3a7923a