Preliminary application of 3D-printed coplanar template for iodine-125 seed implantation therapy in patients with advanced pancreatic cancer

Table 1 Patient characteristics

Characteristic	Group A	Group B
Sex, n (%)
Male	6 (50)	6 (46.2)
Female	6 (50)	7 (53.8)
Age, yr
Median (range)	65.5 (48-81)	63.8 (47-84)
Location of lesions, n (%)
Pancreatic head	11 (92)	9 (69.2)
Pancreatic body and tail	1 (8)	4 (30.8)
Lesion size, n (%)
≤ 3 cm	1 (8.3)	3 (23.1)
3-5 cm	10 (83.3)	9 (69.2)
> 5 cm	1 (8.3)	1 (7.7)
Stage, n (%)
III	7 (58.3)	8 (61.5)
IV	5 (41.6)	5 (38.5)

Table 2 Preoperative and postoperative dosimetric data

	Group A			Group B
Dosimeter	Preoperative	Postoperative	P value	Preoperative	Postoperative	P value
D90 (Gy)	155.32 ± 8.05	154.82 ± 16.43	0.91	154.2 ± 9.08	103.27 ± 25.03	0.00
V90 (%)	97.14 ± 0.93	94.64 ± 2.35	0.01	97.17 ± 0.95	78.91 ± 12.71	0.00
V100 (%)	94.51 ± 1.61	91.05 ± 4.06	0.02	94.94 ± 1.05	72.91 ± 13.78	0.00
V150 (%)	59.26 ± 15.42	64.54 ± 13.40	0.36	62.44 ± 8.66	48.16 ± 15.97	0.02

Table 3 Differences in postoperative dosimeter values between group A and group B

Postoperative dosimeter	Group A	Group B	t	P value
D90 (Gy)	154.82 ± 16.43	103.27 ± 25.03	6.132	0.13
V90 (%)	94.64 ± 2.35	78.91 ± 12.71	4.38	0.00
V100 (%)	91.05 ± 4.06	72.91 ± 13.78	4.54	0.00
V150 (%)	64.54 ± 13.40	48.16 ± 15.97	2.765	0.44