. Author manuscript; available in PMC: 2014 Feb 21.

Published in final edited form as: Phys Med Biol. 2013 Jan 16;58(4):807–823. doi: 10.1088/0031-9155/58/4/807

Table 2.

Mean organ dose (without radiation weighting factor) and organ equivalent doses from proton and photon CSI plans for a 4-year-old boy. For proton CSI, therapeutic, stray and total doses are listed. For photon CSI, the combined doses from both therapeutic and stray doses are listed. (Because of the methodology used to calculate photon dose, it was not possible to separate therapeutic dose from stray dose for photon CSI).

Organ	D_h (mGy)		H_h (mSv)			D_p (mGy) Total	H_p (mSv) Total	H_h,_total/ H_p,_total
Organ	Therapeutic	Stray	Therapeutic	Stray	Total	D_p (mGy) Total	H_p (mSv) Total	H_h,_total/ H_p,_total
Prostate	1	20	1	159	160	1662	1662	0.096
Colon	150	26	165	209	374	6415	6415	0.058
Lungs	225	41	248	329	577	4413	4413	0.131
Stomach	612	36	673	289	962	4076	4076	0.236
Bladder	5	21	5	170	175	3127	3127	0.056
Liver	155	31	171	249	420	5493	5493	0.076
Thyroid	5	48	6	383	389	10854	10854	0.036
Remainder	165	32	181	255	437	5149	5149	0.085

Subscript h denotes proton therapy, and subscript p denotes photon therapy.