Low-Dose Computed Tomography Colonography Technique

Kevin J. Chang, Judy Yee

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

Significant anxiety has been expressed by some over the radiation risks associated with computed tomography (CT), particularly when it applies to a screening examination such as CT colonography. These theoretic risks are far outweighed by the significant benefits colorectal cancer screening offers. Regardless of how significant the theoretic risk of CT radiation is in the older population, the ALARA principle maintains that radiation dose should be reduced to As Low As Reasonably Achievable. This article will discuss various strategies that may be utilized to reduce radiation dose and mitigate any increase in image noise that may occur.

Original languageEnglish (US)
Pages (from-to)709-717
Number of pages9
JournalRadiologic clinics of North America
Volume56
Issue number5
DOIs
StatePublished - Sep 2018

Keywords

  • Automatic dose modulation
  • Computed tomography colonography
  • Iterative reconstruction
  • Radiation dose reduction
  • Virtual colonoscopy
  • kVp

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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