Extracolonic findings and radiation at CT colonography: what the referring provider needs to know
A better understanding of the risks and benefits of extracolonic findings and radiation dose will aid in the safe and proper implementation of CT colonography in clinical practice. The majority of extracolonic findings in screening patients are benign and can be ignored by referring physicians. Radiologists also need to be responsible in reporting extracolonic findings. Referring providers must be knowledgeable about the theoretic risks and controversies regarding the use of ionizing radiation. Screening CT colonography imparts a low-level of radiation to patients that is equivalent or less than annual background dose.
KeywordsCT CT colonography Colorectal cancer Radiation dose Iterative reconstruction Extracolonic
Compliance with ethical standards
No funding was provided for this manuscript.
Conflict of interest
Judy Yee, MD, FACR has received research Grants from Echopixel and Philips. Elizabeth McFarland, MD is a member of the Medical Advisory Board for Vital Images.
This article does not contain any studies with human participants or animals performed by any of the authors.
For this type of study, formal consent is not required.
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