Page 30 - ARNM-2-4

Advances in Radiotherapy
& Nuclear Medicine 3D-PT-assisted CT-guided I RSI
125

A B C

D E F

Figure 1. The three-dimensional-printing non-co-planar template utilized in computed tomography-guided iodine-125 radioactive seed implantation.
(A) Pre-operative assessment. (B) Print personalized 3D-printing non-co-planar template through 3D printing. (C) Pre-operative planning design.
(D) Insert needles. (E) Verify needle positions. (F) Perform I seed implantation.
125
A B C

D E

Figure 2. The three-dimensional-printing co-planar template utilized in computed tomography-guided iodine-125 radioactive seed implantation.
(A) Print personalized 3D-printing co-planar template through 3D printing. (B) Pre-operative planning design. (C) Insert needles. (D) Verify needle
positions. (E) Perform I seed implantation.
125
deviations during the RSI process can affect the efficacy for interstitial brachytherapy using 125 I seeds for the
and safety of particle implantation, presenting a treatment of recurrent HNC.
significant challenge in achieving consistency between
pre-operative and post-operative plans. At present, 2. Scope and methodology
there is no comprehensive report on the clinical process 2.1. Scope of the consensus
or technical standards for 3D-PT-assisted CT-guided
RSI in the treatment of recurrent HNC. Hence, this The term “brachytherapy” originates from Greek and
consensus primarily focuses on the application of 3D-PT encompasses five modalities: intracavitary irradiation,

Volume 2 Issue 4 (2024) 3 doi: 10.36922/arnm.4212