Factors influencing the accuracy of multimodal image fusion for oral and maxillofacial tumors: a retrospective study

Table 3 Univariate analysis of potential influencing factors (numerical variables) of fusion accuracy

	Characteristics	Gross tumor volume	Thinner slice thickness	Thicker slice thickness	Lower pixel pitch	Higher pixel pitch
MD	Pearson’s correlation coefficient	− 0.10	0.27	0.11	− 0.12	− 0.10
MD	P-value	0.33	0.01*	0.32	0.26	0.34
FI	Pearson’s correlation coefficient	0.36	− 0.01	− 0.07	0.18	− 0.15
FI	P-value	< 0.001*	0.90	0.50	0.09*	0.15

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