Standard chest CT using combined automated tube potential selection and iterative reconstruction: image quality and radiation dose reduction

Clin Imaging. 2014 Sep-Oct;38(5):641-7. doi: 10.1016/j.clinimag.2014.04.004. Epub 2014 Apr 21.

Abstract

Objective: To evaluate the image quality and radiation dose reduction of chest computed tomography (CT) using combined automated tube potential selection (ATPS) and iterative reconstruction (IR).

Materials and methods: Image quality and radiation dose were compared between conventional contrast-enhanced chest CT using 120 kVp and filtered back projection (Protocol A) and CT using ATPS and IR (Protocol B) in 43 patients.

Results: The effective radiation dose was 3.6 ± 0.4 mSv for Protocol A and 2.2 ± 0.6 mSv for Protocol B (mean dose reduction, 39.7%). Protocol B showed diagnostic image quality in all patients.

Conclusion: ATPS and IR allows for radiation dose reduction while maintaining diagnostic image quality.

Keywords: Computed tomography (CT); Iterative reconstruction; Lung; Radiation dose.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Parathyroid Neoplasms / diagnostic imaging*
  • Radiation Dosage
  • Radiation Injuries / prevention & control*
  • Radiographic Image Enhancement / standards*
  • Reproducibility of Results
  • Retrospective Studies
  • Time Factors
  • Tomography, X-Ray Computed / methods*