TABLE IV.

Inner diameter and WA airway measurements for the smallest, most inaccurately measured airway airway 4(−2.5 mm ID, WT = 0.4 mm) using FBP.

Recon option	mA s	DFOV (cm)	Recon kernel	Inner diameter (mm)	ID error (%)	WA%	WA% error (%)
FBP	100	36	BONE	1.7872	28.5114	77.2157	81.2151
			STD	1.5832	36.6707	83.4498	95.8455
	100	18	BONE	2.0981	16.0771	66.8300	56.8412
			STD	1.7044	31.8249	80.1656	88.1380
	25	18	BONE	2.1301	14.7979	65.8417	54.5216
			STD	1.7120	31.5219	79.8636	87.4293