Computed tomography colonography and radiation risk: How low can we go?

Autor:	Popic J; Department of Radiology, University Hospital Merkur, School of Medicine, University of Zagreb, Zagreb 10000, Croatia., Tipuric S; Department of Family Medicine, Health Center Zagreb-East, Zagreb 10000, Croatia., Balen I; Department of Gastroenterology and Endocrinology, General Hospital Slavonski brod 'Dr. Josip Bencevic', Slavonski Brod 35000, Croatia., Mrzljak A; Department of Medicine, Merkur University Hospital, School of Medicine, University of Zagreb, Zagreb 10000, Croatia. anna.mrzljak@gmail.com.
Jazyk:	angličtina
Zdroj:	World journal of gastrointestinal endoscopy [World J Gastrointest Endosc] 2021 Mar 16; Vol. 13 (3), pp. 72-81.
DOI:	10.4253/wjge.v13.i3.72
Abstrakt:	Computed tomography colonography (CTC) has become a key examination in detecting colonic polyps and colorectal carcinoma (CRC). It is particularly useful after incomplete optical colonoscopy (OC) for patients with sedation risks and patients anxious about the risks or potential discomfort associated with OC. CTC's main advantages compared with OC are its non-invasive nature, better patient compliance, and the ability to assess the extracolonic disease. Despite these advantages, ionizing radiation remains the most significant burden of CTC. This opinion review comprehensively addresses the radiation risk of CTC, incorporating imaging technology refinements such as automatic tube current modulation, filtered back projections, lowering the tube voltage, and iterative reconstructions as tools for optimizing low and ultra-low dose protocols of CTC. Future perspectives arise from integrating artificial intelligence in computed tomography machines for the screening of CRC. Competing Interests: Conflict-of-interest statement: The authors declare no conflict of interest. (©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.)
Databáze:	MEDLINE
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