A comparative study on the accuracy of longitudinal distance between 125I seed implantation with degradable catheters and by hand
10.3760/cma.j.issn.0254-5098.2018.03.012
- VernacularTitle:携带125I粒子导管和徒手粒子植入模拟病灶后粒子纵向间距准确性的对比研究
- Author:
Chuang HE
1
;
Yuxiao CHEN
;
Liangshan LI
;
Li YANG
;
Jing YUAN
;
Tingyuan LI
;
Xuequan HUANG
Author Information
1. 陆军军医大学(第三军医大学)第一附属医院放射科
- Keywords:
Degradable catheter;
125I seeds;
Brachytherapy;
CT guidance
- From:
Chinese Journal of Radiological Medicine and Protection
2018;38(3):220-223
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the accuracy of 125I seeds longitudinal distance between groups by degradable catheters and hand.Methods The study was divided into two groups (implantation by degradable catheters and that by hand).There were 12 simulated lesions in each group.Seed needle and 125I seeds were implanted by three physicians according to the set longitudinal distance (0.5 and 1.0 cm).Postoperative CT was conducted and the longitudinal distance between seeds was measured,and then the data was analyzed between the actual distance and the designed distance in each group.Results The degree of deviation from the set distance were (0.184 ±0.047) and (0.127 ±0.051) cm in the group by hand,and (0.007 ± 0.006) and (-0.003 ± 0.006) cm in degradable catheters group.The degree of deviation of the seeds in the catheter group was significantly lower than the group by hand (t =3.804,2.499,P ＜0.05).Conclusions The accuracy of the longitudinal distance of the group by catheter is much better than that by hand.
