Accurate Coregistration between Ultra-High-Resolution Micro-SPECT and Circular Cone-Beam Micro-CT Scanners

Table 2

Statistics of maximum bed-mounting error analyzed for all markers.

	Maximum error(mm)	Mouse bed (Φ0.35 mm pinholes)		Rat bed (Φ1.0 mm pinholes)
		Average	Maximum	Average	Maximum
CT	𝑋	0.0483	0.0777	0.1308	0.2066
	𝑌	0.1095	0.1582	0.1074	0.1783
	𝑍	0.1169	0.1392	0.1627	0.2322
	3D	0.1497	0.1901	0.2229	0.2697
		3 mountings, 5 markers		4 mountings, 8 markers
SPECT	𝑋	0.0320	0.0500	0.0252	0.0541
	𝑌	0.0489	0.0590	0.0410	0.0802
	𝑍	0.0459	0.0690	0.0260	0.0569
	3D	0.0842	0.0947	0.0575	0.0979
		4 mountings, 5 markers		4 mountings, 8 markers