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MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There?

Publication ,  Journal Article
McNitt-Gray, M; Noo, F; Fessier, J; Samei, E
Published in: Med Phys
June 2012

UNLABELLED: Radiation Dose continues to be a concern with respect to all diagnostic imaging using ionizing radiation, but especially so with CT imaging. We have always known how to reduce radiation dose in CT - for example, simply turning down the system output (e.g. reduce mAs). What we have not been able to do is to simultaneously reduce dose and maintain "diagnostic image quality". Many recent technical developments have appeared, and will continue to appear, that will allow users to reduce radiation dose in CT while "maintaining image quality". However, this last term is ill-defined and current metrics of image quality are not very applicable to actual clinical practice. The purpose of this symposium is to: (a) describe several current and possible future radiation dose reduction methods and the magnitude of their potential for dose reduction, (b) some description of what "diagnostic image quality" means, the effects that dose reductions methods have on this property, description of some metrics that may help us assess this property quantitatively and this information can be used to guide how low radiation doses can be reduced. LEARNING OBJECTIVES: 1. Understand both conventional and emerging radiation dose reduction methods in CT. 2. Understand the implications on diagnostic image quality for each radiation dose reduction method. 3. Understand some of the issues in evaluating how much radiation dose can be reduced and still accomplish a diagnostic imaging task.

Duke Scholars

Published In

Med Phys

DOI

EISSN

2473-4209

Publication Date

June 2012

Volume

39

Issue

6Part21

Start / End Page

3868

Location

United States

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • 5105 Medical and biological physics
  • 4003 Biomedical engineering
  • 1112 Oncology and Carcinogenesis
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
McNitt-Gray, M., Noo, F., Fessier, J., & Samei, E. (2012). MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There? Med Phys, 39(6Part21), 3868. https://doi.org/10.1118/1.4735793
McNitt-Gray, M., F. Noo, J. Fessier, and E. Samei. “MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There?Med Phys 39, no. 6Part21 (June 2012): 3868. https://doi.org/10.1118/1.4735793.
McNitt-Gray M, Noo F, Fessier J, Samei E. MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There? Med Phys. 2012 Jun;39(6Part21):3868.
McNitt-Gray, M., et al. “MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There?Med Phys, vol. 39, no. 6Part21, June 2012, p. 3868. Pubmed, doi:10.1118/1.4735793.
McNitt-Gray M, Noo F, Fessier J, Samei E. MO-D-BRA-01: Limits of Dose Reduction in CT: Where are They and How Will We Know When We Get There? Med Phys. 2012 Jun;39(6Part21):3868.

Published In

Med Phys

DOI

EISSN

2473-4209

Publication Date

June 2012

Volume

39

Issue

6Part21

Start / End Page

3868

Location

United States

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • 5105 Medical and biological physics
  • 4003 Biomedical engineering
  • 1112 Oncology and Carcinogenesis
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences