. 2014 Apr 16;19(6):392–398. doi: 10.1016/j.rpor.2014.03.004

Table 1.

Elemental composition and density assigned to each segmented structure in the voxel phantoms.

Medium/tissue	Elemental composition (% by mass)											Density (g/cm³)
	H	C	N	O	Na	Mg	P	S	Cl	K	Ca
Water²	11.2			88.8								0.998²
Skin¹³	10.0	20.4	4.2	64.5	0.2		0.1	0.2	0.3	0.1		1.100¹³
Bladder¹³	10.5	9.6	2.6	76.1	0.2		0.2	0.2	0.3	0.3		1.014^a
Rectum¹³^,^b	10.6	11.5	2.2	75.1	0.1		0.1	0.1	0.2	0.1		0.932^a
Prostate¹³	10.5	25.6	2.7	60.2	0.1		0.2	0.3	0.2	0.2		1.027^a
Vesicles¹³^,^c	10.5	25.6	2.7	60.2	0.1		0.2	0.3	0.2	0.2		0.989^a
Spinal cord¹⁴^,^d	10.7	14.5	2.2	71.2	0.2		0.4	0.2	0.3	0.3		1.040¹⁴
Bone¹³^,^e	3.5	16.0	4.2	44.5	0.3	0.2	9.5	0.3			21.5	1.920¹⁴
Muscle¹³	10.2	14.3	3.4	71.0	0.1		0.2	0.3	0.1	0.4		1.050¹⁴
Residual tissue¹⁴^,^f	11.4	59.8	0.7	27.8	0.1		0.1	0.1				0.950¹⁴

This study.

Considered alimentary tract stomach and intestine elemental composition.

Considered prostate tissue elemental composition.

Considered brain elemental composition and density.

Adult mineral bone.

Adipose tissue.