Clinical value of digital information coplanar template in seed implantation for the treatment lung cancers
10.3760/cma.j.issn.0254-5098.2021.01.005
- VernacularTitle:数字信息行标共面模板在粒子植入治疗肺癌中的临床价值
- Author:
Xiaodong HUO
;
Bin HUO
;
Qiang CAO
;
Huixing WANG
;
Lei WANG
;
Guangjun ZHENG
;
Haitao WANG
;
Junjie WANG
;
Shude CHAI
- From:
Chinese Journal of Radiological Medicine and Protection
2021;41(1):19-25
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the value of digital information line mark coplanar template (also referred to as the line mark template) in 125I radioactive seed implantation for the treatment of lung cancers. Methods:A retrospective analysis was conducted for 58 cases of lung cancers who were treated with template-assisted seed implantation in Oncology Department of the Second Hospital of Tianjin Medical University from Aug 2017 to May 2019.Line mark templates were adopted for 30 cases (the line mark template group) and general standard coplanar templates (also referred to as the general template) were used for 28 cases (the general template group). Pre-plan and post-implant parameters were compared, including the minimum prescription dose delivered to 90% of target volume ( D90), minimum peripheral dose (MPD), mean percentages of volume receiving 100%, 150% and 200% of the prescription doses ( V100, V150 and V200), external index (EI), conformity index (CI), and homogeneity index (HI) of target volume.The operation duration was also compared between the two groups. Results:There was no statistical difference between pre-plan and post-implant D90, MPD, V100, V150 and V200 in the line mark template group ( P>0.05). There was also no statistical difference between pre-plan and post-implant D90, MPD, V100, V150 and V200 of the general template group ( P>0.05). The operation duration of the line mark template group and the general template group was (44.3±12.4) and (60.0±12.8) min, respectively ( t=-3.03, P<0.05). Conclusions:The use of template-assisted seed implantation can accurately achieve preoperative planning, while the line mark template shortens the operation duration and thus improves the tolerance of patients.
