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Table 3 Absolute (in mm) and relative (as percentage, deviating from 100%) errors, including the median and interquartile ranges (IQR) per measured direction, and the total error taking every measurement into account

From: Computer 3D modeling of radiofrequency ablation of atypical cartilaginous tumours in long bones using finite element methods and real patient anatomy

Case Error shortest (mm)/percentage Error other (mm)/percentage Error longest (mm)/percentage  
1 10 138% -1 98% -1 98%  
2 1 102% -10 81% -9 86%  
3 8 129% -3 92% 0 100%  
4 -1 98% -2 95% 0 100%  
5 -1 98% -6 88% -6 88%  
6 8 122% 4 112% -5 89%  
7 3 113% -1 97% 7 123%  
Error interquartile ranges (IQR) Total error
IQR1 (mm) 0   -4.5   -5.5   −3
Median (mm) 3   -2   -1   -1
IQR3 (mm) 8   -1   0   3