Table 2.

Comparison of the total doses of DLP^* received by patients in both groups covered by the analysis.

Total dose of DLP (mGy*cm)	Low-dose protocol	Standard protocol	Difference in mGy*cm
Max.	1333	2087	754 (36%)
Min.	156	234	78 (33%)
Mean	563	933	370 (40%)

^*DLP is a measure of accumulated dose (total energy of radiation) received by the patient. The unit of this index is mGy × cm. It incorporates not only the mean radiation dose in the visualised volume (CTDIvol) but also the length of the scanned area L.