Table 1.

Average HU numbers of OARs in synCT and planCT

Pt#	R Lung		L Lung		Spinal Cord		Heart		Spine Bone
	synCT	CT	synCT	CT	synCT	CT	synCT	CT	synCT	CT
Pt1	−747	−637	−740	−616	72	33	68	120	268	244
Pt2	−752	−701	−737	−693	72	69	70	38	252	349
Pt3	−747	−774	−738	−766	72	55	68	130	260	422
Pt4	−730	−745	−701	−702	62	64	70	45	260	299
Pt5	−692	−714	−698	−721	67	49	70	49	260	365
Pt6	−714	−739	−690	−726	74	78	69	44	266	505
Pt7	−730	−650	−685	−674	109	52	66	41	269	300
Pt8	−740	−741	−727	−706	72	70	70	42	260	405
Pt9	−734	−812	−734	−793	65	42	68	31	256	249
Pt10	−759	−775	−758	−775	74	46	65	40	266	292
Pt11	−760	−838	−760	−822	86	57	63	146	268	268
Mean ± SE	−737 ± 6	−739 ± 19	−724 ± 8	−727 ± 18	75 ± 4	56 ± 4	68 ± 1	66 ± 13	262 ± 2	336 ± 25
P-value	0.90		0.88		0.007		0.90		0.014