The Fourth Hospital of Beijing Medical University completed the first CT guided joint 3D printing for tumor treatment December 28, 2015 Source: Phoenix Health On December 22, the Department of Radiation Oncology, Peking University Third Hospital completed CT guidance combined with 3D printing personalized template to guide radioactive iodine-125 particle implantation for the treatment of retroperitoneal recurrent tumors. Ms. Lu, a 54-year-old patient with a retroperitoneal stromal tumor, lost her chance of surgery because she failed after targeted therapy. After a comprehensive evaluation, Director Wang Junjie of the Department of Radiation Oncology of the Third Hospital of Beijing Medical University decided to treat the patients with particles. On the afternoon of the 22nd, Director Wang Junjie of the Department of Oncology and Radiation, Peking University Third Hospital led the doctor and physicist design team to carefully design the particle implantation path to ensure accurate particle implantation, by customizing the customized 3D printing template. Spatial positioning. The implantation of the particles once completes the needle, which greatly shortens the treatment time. Immediately after surgery, the dose verification is up to the preoperative planning requirements. At this point, radioactive particle implantation for the treatment of retroperitoneal recurrence tumors ushered in a new era of 3D print template assist. With the advancement of technology, radioactive particle implantation for the treatment of tumors has attracted more and more attention because of its advantages such as minimally invasive, high local dose and small normal tissue damage. Beginning in 2012, Professor Wang Junjie and other doctors tried to use CT guidance technology to guide radioactive iodine-125 particle implantation in the treatment of various solid recurrence tumors, and successively established the treatment of recurrent head and neck cancer, chest recurrence and metastasis, spinal metastases, and recurrent rectum. A series of technical specifications such as cancer and soft tissue tumors have greatly improved the accuracy and efficacy of radioactive particle therapy. However, the effectiveness of the treatment is too high in relation to the doctor's own operating technology, which seriously restricts the popularization and promotion of CT guided puncture technology. The key point of particle implantation is positioning. Due to the complexity of human anatomy, surface irregularities, invasiveness of various recurrent tumors, and irregular growth, the insertion, depth and angle of particle needles are affected to varying degrees. Some special tumors can't even enter the needle at all. Since 2014, the team led by Professor Wang Junjie has continuously tried to use 3D printing technology to design individualized and non-coplanar templates, and to improve the accuracy of particle implantation treatment through modern imaging technology, computer-aided technology and navigation system fixtures. This time, CT guided combined with 3D printing personalized template to guide radioactive iodine-125 particle implantation, greatly improving the accuracy of particle implantation positioning. This method is used to treat retroperitoneal recurrent tumors. At present, there is no relevant report in the world.
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The Fourth Hospital of Beijing Medical University completed the first CT guided joint 3D printing for tumor treatment