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

Table 1

Average and maximum of standard deviation of M_c analyzed for different markers.

	Standard deviation (mm)	Mouse bed (Φ0.35 mm pinholes)		Rat bed (Φ1.0 mm pinholes)
		Average	Maximum	Average	Maximum
CT	𝑋	0.0400	0.0617	0.0869	0.1335
	𝑌	0.0869	0.1120	0.0777	0.1358
	𝑍	0.0883	0.1016	0.1314	0.1666
	3D	0.1329	0.1553	0.1806	0.2273
		3 mountings, 5 markers		4 mountings, 8 markers
SPECT	𝑋	0.0280	0.0364	0.0188	0.0392
	𝑌	0.0428	0.0548	0.0269	0.0474
	𝑍	0.0398	0.0526	0.0210	0.0342
	3D	0.0667	0.0716	0.0415	0.0590
		4 mountings, 5 markers		4 mountings, 8 markers