Building a dual-energy CT service line in abdominal radiology
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COMPUTED TOMOGRAPHY
Building a dual-energy CT service line in abdominal radiology Shanigarn Thiravit 1,2 & Christina Brunnquell 1 & Larry M. Cai 1 & Mena Flemon 1 & Achille Mileto 1 Received: 5 May 2020 / Revised: 8 October 2020 / Accepted: 23 October 2020 # European Society of Radiology 2020
Abstract As the access of radiology practices to dual-energy CT (DECT) has increased worldwide, seamless integration into clinical workflows and optimized use of this technology are desirable. In this article, we provide basic concepts of commercially available DECT hardware implementations, discuss financial and logistical aspects, provide tips for protocol building and image routing strategies, and review radiation dose considerations to establish a DECT service line in abdominal imaging. Key Points • Tube-based and detector-based DECT implementations with varying features and strengths are available on the imaging market. • Thorough assessment of financial and logistical aspects is key to successful implementation of a DECT service line. • Optimized protocol building and image routing strategies are of critical importance for effective use and seamless inception of DECT in routine clinical workflows. Keywords Tomography, X-ray computed . Diagnostic imaging . Organization and administration . Radiation exposure
Abbreviations CTDIvol DECT DL-DECT DS-DECT FOV KVS-DECT PACS PCD SECT SF-DECT
Volume CT dose index Dual-energy CT Dual-layer dual-energy CT Dual-source dual-energy CT Field-of-view Rapid kilovoltage-peak switching dual-energy CT Picture archiving and communication system Photon-counting detectors Single-energy CT Split-filter dual-energy CT
* Achille Mileto [email protected] 1
Department of Radiology, University of Washington School of Medicine, Box 357115, 1959 NE Pacific Street, Seattle, WA 98195, USA
2
Division of Diagnostic Radiology, Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
SS-DECT VMCI VUE
Sequential scanning dual-energy CT Virtual monochromatic images Virtual unenhanced
Introduction Dual-energy CT (DECT) has proven to be beneficial in a variety of abdominal imaging tasks [1–6]. For seamless inception of DECT into clinical workflows, however, it is of critical importance to carefully assess financial and logistics aspects, prospectively establish imaging protocols and image routing strategies, while considering the impact on the practicing radiologists. In this article, we provide basic concepts of commercially available DECT hardware implementations, discuss financial and logistical aspects, provide tips for protocol building and image routing strategies, and review radiation dose considerations to establish a DECT service line in abdominal imaging.
Eur Radiol
DECT hardware DECT implementations available on the market From a conceptual standpoint, DECT hardware is either tubebased or detector-based, depending upon how the two different x-ray energies are obtained. There are five tube-based or detector-based DECT implementations currently av
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