Comparison of image quality in pediatric head computed tomography reconstructed using blended iterative reconstruction versus filtered back projection.
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.
Indiana University School of Medicine, Radiology Department. Electronic address: cyho@iupui.edu.
Chang
C
Ho
Indiana University School of Medicine, Radiology Department.
Robert
R
Oberle
Indiana University School of Medicine, Radiology Department.
Isaac
I
Wu
Indiana University School of Medicine, Radiology Department.
Eugene
E
Kim
D000293:Adolescent; D001921:Brain / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D059906:Neuroimaging; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed; D055815:Young Adult
Dose reduction; Image quality; Iterative reconstruction; Pediatric head CT