Keywords:
Musculoskeletal spine, CT, Diagnostic procedure, Technology assessment, Radiation safety
Authors:
M. W. Kusk; Esbjerg/DK
DOI:
10.1594/ecr2018/C-2188
Results
Patients in the 120 kVp group had a mean age of 35,6 years compared to 38,4 in the 150Sn kVp group,
which did not differ significantly (p=0,63).
CTDI and DLP values can be seen in the table below,
and the difference in both was statistically significant between 120 and 150Sn kVp groups (p<0,0001).
Numbers in parenthesis represent standard deviation).
kVp |
mean CTDI (mGy) |
mean DLP (mGycm) |
120 |
19,65 (2,66) |
487,10 (59,58) |
150Sn |
5,93 (0,50) |
136,17 (21,83) |
Distribution of both readers' image quality score can be seen below,
by criteria.
In each case differences were not significant (p =0,24 - 1,0).
Fig. 2: Boxplot of scores for the two image quality criteria (C1 & C2), by reader (R1 & R2)