Quantitative comparison of pre-treatment predictive and post-treatment measured dosimetry for selective internal radiation therapy using cone-beam CT for tumor and liver perfusion territory definition

EJNMMI Research

Table 2 Statistical properties of different dosimetric parameters in different VOIs

		Predicted		Post-treatment		Wilcoxon	Pearson correlation
VOI	Parameter	Mean	std	Mean	std	p value	r	p value
Total NTV	Mean dose	30.4	11.9	29.5	11.4	0.272	0.937	<0.001
	D30	31.4	15.8	32.3	17.0	0.344	0.826	<0.001
	D50	18.6	11.2	17.7	12.3	0.355	0.803	<0.001
	V40	24.5	11.1	25.1	12.3	0.666	0.805	<0.001
	V50	17.6	7.9	18.7	9.8	0.249	0.826	<0.001
Total LPT	Mean dose	63.5	85.6	53.0	52.4	0.135	0.820	<0.001
	D30	68.4	95.2	56.8	61.0	0.440	0.755	<0.001
	D50	41.8	60.6	31.6	31.7	0.076	0.756	<0.001
	V30	48.6	19.9	45.8	17.4	0.286	0.732	<0.001
	V50	31.0	19.6	29.6	16.2	0.641	0.772	<0.001
Tumors	Mean dose	152.3	144.7	143.0	137.8	0.918	0.623	<0.001
	D50	139.2	129.8	127.8	134.7	0.576	0.597	<0.001
	D70	102.8	95.3	87.9	98.6	0.080	0.604	<0.001
	V70	64.9	35.4	60.4	30.1	0.275	0.229	0.063
	V100	52.5	36.1	47.4	30.3	0.354	0.381	<0.001