CT radiation dose and iterative reconstruction techniques

AJR Am J Roentgenol. 2015 Apr;204(4):W384-92. doi: 10.2214/AJR.14.13241.


1. CT radiation dose optimization is one of the major concerns for the scientific community. 2. CT image quality is dependent on the selected image reconstruction algorithm. 3. Iterative reconstruction algorithms have reemerged with the potential of radiation dose optimization by lowering image noise. 4. Tube current is the most common parameter used to reduce radiation dose along with iterative reconstruction. 5. Tube potential (kV) is also used for dose optimization with iterative reconstruction in CT angiography protocols and small patients.

Keywords: CT image quality; CT radiation dose; iterative reconstruction techniques; optimization.

Publication types

  • Review

MeSH terms

  • Algorithms
  • Humans
  • Radiation Dosage*
  • Radiation Protection / methods
  • Radiographic Image Interpretation, Computer-Assisted / methods*
  • Tomography, X-Ray Computed / instrumentation
  • Tomography, X-Ray Computed / methods*