Evaluating organ delineation, dose calculation and daily localization in an open-MRI simulation workflow for prostate cancer patients

Table 2 Anatomical differences between MRI and CT Datasets

	Prostate		Seminal Vesicles		Penile Bulb		CTV (prostate + seminal vesicles)
	MRI vol (cc)	CT vol (cc)	MRI vol (cc)	CT vol (cc)	MRI vol (cc)	CT vol (cc)	MRI vol (cc)	CT vol (cc)
Patient 1	79.46	89.63	16.43	19.96	2.63	3.02	95.89	109.59
Patient 2	83.70	131.00	18.23	7.66	12.98	12.02	101.93	138.66
Patient 3	37.84	56.44	16.22	14.19	3.95	4.45	54.06	70.63
Patient 4	84.20	117.60	11.17	16.47	5.25	8.76	95.37	134.07
Patient 5	26.81	45.14	6.85	9.02	1.95	4.98	33.66	54.16
Patient 6	31.78	50.20	26.59	15.37	4.04	7.15	58.37	65.57
Patient 7	38.94	44.46	22.92	17.27	3.64	4.93	61.86	61.73
Patient 8	30.82	42.13	8.80	5.24	3.44	0.55	39.62	47.37
Patient 9	32.03	42.50	9.44	12.64	2.81	4.74	41.47	55.14
Patient 10	31.76	40.83	14.26	18.02	1.58	5.87	46.02	58.85
%Diff (CT to MRI)	39.7%		−1.7%		61.1%		27.5%
St Dev	18.5%		38.1%		96.8%		17.1%
P value	0.002		0.454		0.074		0.002

ISSN: 1748-717X