Comparison of image quality in pediatric head computed tomography reconstructed using blended iterative reconstruction versus filtered back projection

Chang Ho, Robert Oberle, Isaac Wu, Eugene Kim

Research output: Contribution to journalArticle

6 Scopus citations


We compared image quality in 44 pediatric head computed tomographic exams reconstructed using four levels of blended iterative techniques (iDOSE 1-4) versus filtered back projection. Three radiologists reviewed the 220 series in a randomized, blinded manner. They scored each series based on gray-white matter differentiation, visibility of the pre-pontine cistern, caudate head, image noise, and image quality. Noise was measured in the vitreous and the thalamus. Composite scores were highest with iDOSE 4 ( P<. .0001). Interobserver agreement was fair to moderate. Spearman's rho of the vitreous (-. 0.62, P<. .001) and thalamus (-. 0.58, P<. .001) confirmed a significant inverse correlation between iDOSE level and noise.

Original languageEnglish (US)
Pages (from-to)231-235
Number of pages5
JournalClinical Imaging
Issue number3
StatePublished - May 2014



  • Dose reduction
  • Image quality
  • Iterative reconstruction
  • Pediatric head CT

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Medicine(all)

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