Universität zu Köln

Gupta, Amit, Kikano, Elias G., Bera, Kaustav, Baruah, Dhiraj, Saboo, Sachin S., Lennartz, Simon, Hokamp, Nils Grosse, Gholamrezanezhad, Ali, Gilkeson, Robert C. and Laukamp, Kai R. (2021). Dual energy imaging in cardiothoracic pathologies: A primer for radiologists and clinicians. Eur. J. Radiol. Open, 8. AMSTERDAM: ELSEVIER. ISSN 2352-0477

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Abstract

Recent advances in dual-energy imaging techniques, dual-energy subtraction radiography (DESR) and dualenergy CT (DECT), offer new and useful additional information to conventional imaging, thus improving assessment of cardiothoracic abnormalities. DESR facilitates detection and characterization of pulmonary nodules. Other advantages of DESR include better depiction of pleural, lung parenchymal, airway and chest wall abnormalities, detection of foreign bodies and indwelling devices, improved visualization of cardiac and coronary artery calcifications helping in risk stratification of coronary artery disease, and diagnosing conditions like constrictive pericarditis and valvular stenosis. Commercially available DECT approaches are classified into emission based (dual rotation/spin, dual source, rapid kilovoltage switching and split beam) and detector-based (dual layer) systems. DECT provide several specialized image reconstructions. Virtual non-contrast images (VNC) allow for radiation dose reduction by obviating need for true non contrast images, low energy virtual monoenergetic images (VMI) boost contrast enhancement and help in salvaging otherwise non-diagnostic vascular studies, high energy VMI reduce beam hardening artifacts from metallic hardware or dense contrast material, and iodine density images allow quantitative and qualitative assessment of enhancement/iodine distribution. The large amount of data generated by DECT can affect interpreting physician efficiency but also limit clinical adoption of the technology. Optimization of the existing workflow and streamlining the integration between post-processing software and picture archiving and communication system (PACS) is therefore warranted.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gupta, Amit UNSPECIFIED UNSPECIFIED UNSPECIFIED Kikano, Elias G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bera, Kaustav UNSPECIFIED UNSPECIFIED UNSPECIFIED Baruah, Dhiraj UNSPECIFIED UNSPECIFIED UNSPECIFIED Saboo, Sachin S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lennartz, Simon UNSPECIFIED UNSPECIFIED UNSPECIFIED Hokamp, Nils Grosse UNSPECIFIED UNSPECIFIED UNSPECIFIED Gholamrezanezhad, Ali UNSPECIFIED UNSPECIFIED UNSPECIFIED Gilkeson, Robert C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Laukamp, Kai R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-594923
DOI:	10.1016/j.ejro.2021.100324
Journal or Publication Title:	Eur. J. Radiol. Open
Volume:	8
Date:	2021
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	2352-0477
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language COMPUTER-AIDED DETECTION; DIGITAL RADIOGRAPHY; CHEST RADIOGRAPHY; SUBTRACTION TECHNIQUE; CORONARY-ANGIOGRAPHY; DETECTOR CT; IODINE LOAD; TOMOGRAPHY; PERFUSION; IMAGES Multiple languages Radiology, Nuclear Medicine & Medical Imaging Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59492