Reducing radiation dose in emergency computed tomography with automatic exposure control techniques

Mannudeep K. Kalra, S. M R Rizzo, Robert A. Novelline

Research output: Contribution to journalArticlepeer-review

Abstract

Computed tomography (CT) scanning is being increasingly used for evaluation of trauma, which most commonly involves younger individuals. As younger patients are at higher risk for radiation-induced cancer compared to older patients, radiation dose reduction is an important issue in emergency CT scanning. With automatic exposure control techniques, users select a desired image quality and the system adapts tube current to obtain the desired image quality with greater radiation dose efficiency. These techniques can help in reducing radiation dose by 10-60% in most instances. This review article presents a comprehensive description of fundamentals, clinical applications and radiation dose benefits of automatic exposure control in emergency CT scanning.

Original languageEnglish
Pages (from-to)267-274
Number of pages8
JournalEmergency Radiology
Volume11
Issue number5
DOIs
Publication statusPublished - Jul 2005

Keywords

  • Automatic exposure control
  • Computed tomography (CT)
  • Radiation dose

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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