Table 4.

Scores of Image Quality in Low Dose Chest CT

Note.- Numbers in first column is related to Table 1. Numbers of 'average score of image quality' are means of total scores resulting from sum of subjective image quality scores by two radiologists. ^*Friedman test showed significant results in all assessed categories, ^†In post hoc comparisons, p value of < 0.0001 (adjusted by Bonferroni correction) indicates significant difference. F/FBP = full dose image with filtered back projection, F/IRIS = full dose image with iterative reconstruction in image space (Siemens Healthcare, Erlangen Germany), H/FBP = half dose image with filtered back projection, H/IRIS = half dose image with iterative reconstruction in image space (Siemens Healthcare, Erlangen, Germany)