Table 1.

Channel Dimensions of Initial Computer-Aided Design (CAD) Models and Actual Specimens After Manufacturing as Measured with Micro-CT

	Circular cylinder channel diameter (mm)
CAD design	0.5	1.0	1.5	2.0
Micro-CT measured	0.37 ± 0.030	0.94 ± 0.026	1.38 ± 0.048	1.89 ± 0.028

	Elliptic cylinder channel diameter (mm)		Spheroid channel diameter (mm)
	Minor axis	Major axis	At openings	Maximum
CAD design	0.6	2.0	0.55	2.0
Micro-CT measured	0.54 ± 0.043	1.75 ± 0.043	0.73 ± 0.076	1.89 ± 0.017

For the circular cylinder, scaffolds with four different diameters were generated. For the elliptic cylinder, the minor and major axis dimensions of the channel cross section are given. For the spheroid, the diameter at the channel openings, and the maximum diameter in the middle are given. All specimens were cubic with an average side dimension of 4.50 ± 0.18 mm.