Evaluation of radioactive 125I seed implantation for the treatment of refractory malignant tumours based on a CT-guided 3D template-assisted technique: efficacy and safety

Table 1 Comparison of dosimetric parameters of clinical target volume (CTV) before and after seed implantation of 25 patients with refractory malignant tumor

Parameters	Before surgery			After surgery			P
Parameters	Interval	Median	Mean value	Interval	Median	Mean value	P
D90	50–112	93	93.92 ± 17.60	54–116	106	93.24 ± 15.70	0.28
V100	42–90.8	74.3	71.68 ± 13.34	43.7–91	70.1	72.05 ± 11.70	0.26
V150	21.7–61.2	44.8	42.88 ± 11.40	23.9–62	43.1	43.09 ± 11.05	0.44
CI	0.4–0.82	0.63	0.63 ± 0.10	0.43–0.79	0.63	0.62 ± 0.08	0.14
EI	0.01–0.25	0.05	0.08 ± 0.07	0.01–0.31	0.07	0.08 ± 0.07	0.46
HI	0.3–0.64	0.4	0.42 ± 0.09	0.26–0.61	0.4	0.39 ± 0.08	0.41

ISSN: 1471-2407