CT Colonography – Evolution of Methodology and Indications
Authors:
P. Opletal; M. Standara
Authors‘ workplace:
Masarykův onkologický ústav, Brno
Published in:
Klin Onkol 2012; 25(4): 241-245
Category:
Reviews
Overview
Background:
Advances in CT scanners technology and computing in 90s allowed visual reconstruction of hollow organs inner surface. This method which was mainly used for colon wall imaging had to deal with several limitations from the very first years caused by poorly developed methodology of colonic preparation and distension as well as high radiation exposure.
Design:
Aim of the paper is to provide an overview of technical and methodological innovations that can at least partially overcome above mentioned shortcomings. Due to these changes, CT colonography became the recognized method after incomplete or impossible optical colonography. Specific patient subgroups which particularly benefit from this modality and unresolved role of the CT colonography in colorectal cancer screening are also mentioned.
Conclusion:
CT colonography is a relatively new method that can not completely replace optical colonoscopy. Thanks to advances in technology, however, it became a valid diagnostic tool with certain advantages over other imaging or invasive methods. These benefits can be handed over to a patient when the examination is carefully indicated.
Key words:
radiology – tomography, spiral computed – CT colonography – colonoscopy – colorectal neoplasms – mass screening
This study was supported by scientific program of the Czech Ministry of Health:
FUNDIN MZ0MOU2005. This study was also supported by European fond for regional development and budget of the Czech Republic (OP VaVpI – RECAMO, CZ.1.05/2.1.00/03.0101).
The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study.
The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.
Submitted:
21. 12. 2011
Accepted:
18. 3. 2012
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