The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2B —Graphs of noise index (NI) data from Table 1. NI data plotted versus relative dose for five reconstruction slice thicknesses: 0.625 (black), 1.25 (red), 2.5 (blue), 3.75 (brown), and 5.0 mm (green). NI graph shows dose penalty if NI is decreased from 40 to 30 for 0.625-mm reconstruction slice thickness. As seen in graph, relative dose at NI of 40 and 0.625-mm reconstruction slice thickness is 1.0 (dotted line). At same reconstruction slice thickness of 0.625 mm, but changing NI to 30, relative radiation dose is 1.8 (solid line), resulting in 80% increase in relative dose.