Universität zu Köln

Hokamp, Nils Grosse, Maintz, David, Shapira, Nadav, Chang, De-Hua and Noel, Peter B. (2020). Technical background of a novel detector-based approach energy computed tomography. Diagn. Interv. Radiol., 26 (1). S. 68 - 72. SISLI: AVES. ISSN 1305-3612

Full text not available from this repository.

Abstract

Dual-energy information in computed tomography (CT) can be obtained through different technical approaches. Most available scanner designs acquire scans at two different x-ray spectra. Recently, the first detector-based approach became clinically available. Here, we review the physical principles of dual-energy CT (DECT), including the interaction of photons with matter in terms of the photoelectric effect and Compton scattering. We describe the available concepts to DECT and present a detailed description of the spectral detector CT system. We discuss the stacked detector design and its inherent technical advantages and disadvantages, as well as the principles of image reconstruction, their possibilities and limitations. The increase in reconstructions and data pose some challenges to both clinical and technological workflow, which are hereafter addressed. Finally, we discuss the detector-based approach in light of other, emission-based DECT approaches.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hokamp, Nils Grosse UNSPECIFIED UNSPECIFIED UNSPECIFIED Maintz, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Shapira, Nadav UNSPECIFIED UNSPECIFIED UNSPECIFIED Chang, De-Hua UNSPECIFIED UNSPECIFIED UNSPECIFIED Noel, Peter B. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-352377
DOI:	10.5152/dir.2019.19136
Journal or Publication Title:	Diagn. Interv. Radiol.
Volume:	26
Number:	1
Page Range:	S. 68 - 72
Date:	2020
Publisher:	AVES
Place of Publication:	SISLI
ISSN:	1305-3612
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Radiology, Nuclear Medicine & Medical Imaging Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/35237