Huo Xiaodong,Huo Bin,Cao Qiang,et al.Clinical value of digital information coplanar template in seed implantation for the treatment lung cancers[J].Chinese Journal of Radiological Medicine and Protection,2021,41(1):19-25 |
Clinical value of digital information coplanar template in seed implantation for the treatment lung cancers |
Received:May 21, 2020 Revised:May 21, 2020 |
DOI:10.3760/cma.j.issn.0254-5098.2021.01.005 |
KeyWords:Line mark template General template Radioactive seed Treatment planning system Non-small cell lung cancer |
FundProject:天津市教委科研计划项目(自然科学)(2018KJ073);天津市自然科学基金项目青年项目(18JCQNJC13100) |
Author Name | Affiliation | E-mail | Huo Xiaodong | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Huo Bin | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Cao Qiang | Department of Radiotherapy, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Wang Huixing | Pain Management Center, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Wang Lei | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Zheng Guangjun | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Wang Haitao | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | | Wang Junjie | Department of Radiation Oncology, Third Hospital Peking University, Beijing 100191, China | | Chai Shude | Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin 300211, China | chaishude@126.com |
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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. |
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