Retrospective Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Dec 28, 2014; 6(12): 913-918
Published online Dec 28, 2014. doi: 10.4329/wjr.v6.i12.913
Table 1 Rate of visualization of normal appendix
Axial images
Axial + coronal reformations
SensitivitySpecificityPositive predictive valueNegative predictive valueSensitivitySpecificityPositive predictive valueNegative predictive value
Reader 195% (93/98)92% (11/12)94% (93/99)65 (11/17)99% (97/98)92% (11/12)99% (97/98)92% (12/13)
Reader 297% (95/98)100% (12/12)97% (95/98)80 (12/15)99% (97/98)100% (12/12)99% (97/98)92% (12/13)
Table 2 Thickness of normal appendix
Mean and range of the thickness of 97 normal appendices
Appendix thicknessReader 1Reader 2CombinedP value
With luminal contents3.6 ± 1.1 (3.0-8.0)4.2 ± 1.0 (2.8-9.0)3.9 ± 1.0 (3.0-8.5)< 0.05
Without luminal contents6.8 ± 1.5 (3.5-11.2)6.4 ± 1.3 (3.5-10.5)6.6 ± 1.1 (3.5-11.0)> 0.50