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Dosimetry study of three-dimensional print template-guided precision 125I seed implantation.

Abstract：

OBJECTIVE:This study aimed to compare the dose difference in 125 I seed implantation between three-dimensional (3D) print template-guided operation and traditional implantation. MATERIALS AND METHODS:This study retrospectively analyzed 27 patients who underwent 125I seed implantation from August 2015 to December 2015 in Hebei General Hospital. Of these, 13 underwent seed implantation guided by a 3D print template, named the template group, and 14 underwent traditional implantation, named the traditional group. All patients underwent computed tomography (CT) scan. Then, 3D templates were printed in the template group. The implantation was guided by CT and 3D templates. The patients in the traditional group underwent implantation with free hands guided by CT scan. Postplan was performed after the operation. The dose-volume histogram, D90, and V90 were calculated. The D90 values pre- and post-operation were compared in each group. The postoperation V90 values of the two groups were also compared. RESULTS:The mean D90 values pre- and post-operation in the template group were (87.09 ± 33.63) Gy and (85.31 ± 34.40) Gy, respectively, with no statistically significant difference. The mean D90 values pre- and post-operation in the traditional group were (86.04 ± 29.93) Gy and (74.96 ± 46.10) Gy, respectively, with a statistically significant difference. The mean V90 values postoperation in the template and traditional groups were (92.76% ± 1.89%) and (84.59% ± 7.56%), respectively, with a statistically significant difference. CONCLUSIONS:The postplan and preplan dose parameters of 3D print template-guided seed implantation were nearly consistent. The dose parameters of template group superior to the traditional group. The seeds can be implanted accurately with 3D print template.

journal_name

J Cancer Res Ther

journal_title

Journal of cancer research and therapeutics

authors

Hongtao Z,Xuemin D,Huimin Y,Zeyang W,Lijuan Z,Jinxin Z,Zezhou L,Aixia S,Juan W

doi

10.4103/0973-1482.200607

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

C159-C165

issue

Supplement

eissn

0973-1482

issn

1998-4138

pii

JCanResTher_2016_12_7_159_200607

journal_volume

pub_type

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Dosimetry study of three-dimensional print template-guided precision 125I seed implantation.