Veena Kander, Joanne Hardman, Jo M Wilmshurst
Understanding the landscape of electrophysiology services for children in sub-Saharan Africa
Epileptic disorders : international epilepsy journal with videotape
determine protrusion assessment via hertel exophthalmometry comparison measurement computed tomography ct retrospective blinded comparison exophthalmos measurements axial ct hertel exophthalmometry measurements 113 patients descriptive statistics pearsons correlation kruskalwallis mannwhitneyu test employed analysis mean difference proptosis eyes 24 sd 20 mm ct 22 sd 20 mm hertel measurements proptosis 02 mm present 69 611 2 mm 42 389 patients hertel measurements ct 64 566 49 434 patients pearsons coefficient showed correlation 0793 methods p 0001 accuracy hertel measurement depended significantly examiners experience 5 group 1 515 2 25 3 years p 0042 kruskalwallis analysis p 0086 group 1 vs 2 p 0014 group 1 vs 3 p 0688 group 2 vs 3 mannwhitneyutest reflected levels pearsons coefficient correlation methods 0691 group 1 0837 2 0831 3 respectively p 001 generally hertel exophthalmometry correlates well ct measurements subgroup analysis confirmed superior quality hertel measurements favour experienced examiners teaching accurate hertel exophthalmometry improved assessment exophthalmos using standardized criteria implemented imaging reports