The application and accuracy of feature matching on automated cephalometric superimposition

BMC Medical Imaging

Table 2 Mean operative differences in T₂ landmark distance (mm) between operators. Paired t-test results for the accuracy between manual and automated superimposition, both compared with true values in maxillary superimposition

	N	Operative difference (Hand process) (mm)		N	Accuracy (Hand process) (mm)		Accuracy (Automated process) (mm)		P-value
	N	Mean	SD	N	Mean	SD	Mean	SD	P-value
PNS	84	0.79	0.60	28	0.47	0.25	0.56	0.44	0.189
ANS	84	0.82	0.64	28	0.56	0.37	0.57	0.44	0.855
A	84	0.78	0.56	28	0.54	0.34	0.53	0.45	0.889
UIE	84	0.82	0.63	28	0.51	0.33	0.53	0.38	0.737
UIA	84	0.80	0.58	28	0.49	0.30	0.61	0.61	0.220
UM	84	0.78	0.59	28	0.48	0.27	0.50	0.40	0.718
UMA	84	0.80	0.60	28	0.49	0.35	0.51	0.43	0.763

ISSN: 1471-2342