Figure 7b. Depiction of a lung nodule with different detector configurations on a 16-channel CT scanner. The first row of data on the images is the detector configuration, the middle row is the volume CT dose index, and the bottom row is the scanning time. (a) Coronal reformatted image obtained with the wide detector configuration (reconstructed section thickness, 1.25 mm; increment, 0.625 mm) provides excellent depiction of a nodule and adjacent vessels in the upper lobe of the left lung. (b) Coronal reformatted image obtained with the narrow detector configuration (reconstructed section thickness, 0.625 mm; increment, 0.312 mm) provides slightly improved depiction of vessels and interstitial lines, but there is no alteration in the quality of depiction of the nodule.