X-Ray Scatter Correction on Soft Tissue Images for Portable Cone Beam CT

Table 3

CT number value comparison in the QRM-ConeBeam phantom.

	FBCT		No correction		Scatter correction at different iterations
					2 iterations		4 iterations		6 iterations		8 iterations		10 iterations
	HU	STD	HU	STD	HU	STD	HU	STD	HU	STD	HU	STD	HU	STD
Bone	752	122	141	82	436	105	648	128	713	139	736	145	742	148
Air	−1000	63	−760	57	−809	76	−905	77	−923	70	−940	67	−943	66
Soft tissue	0	112	−197	63	−60	85	−2	108	6	117	7	120	7	121