Radioactive particle implantation: treatment of recurring incurable tumors

(Jiang Yuliang, Department of Oncology radiotherapy, Third Hospital, Peking University)
radioactive particle implantation is a local treatment method as a near-field radiation therapy technology. Some patients with recurring and incurable tumors, often can no longer undergo surgery or radiotherapy, in this case, you can try 3D printing templates to assist CT to guide radioactive particle technology to diagnosis and treatment.
Traditional radioactive particle implantation, mostly under CT or ultrasound guidance operation, puncture error is relatively large, puncture risk is high, long operating time, multiple CT scans will also increase non-essential radiation, dose distribution is difficult to meet preoperative standards and so on.
and "3D printing individualized template auxiliary CT guide radioactive particles" technology, popularly speaking, before surgery through accurate imaging examination to determine the tumor range, design implant needle puncture path and particle distribution. The combination of 3D printing templates and CT technology perfectly implements preoperative design. Postoperative verification confirmed that the tumor was exposed to high doses of radiation, while adjacent organs were treated at lower doses. In order to achieve good tumor control, and low side effects of the expected clinical results.
At present, radioactive particle implantation is mainly applicable to: relapse after solid tumor surgery and/or radiotherapy, no chance of re-surgical re-radiation treatment of patients; The combination of "3D printing" technology and radioactive particle implantation technology has further improved the precision, efficiency and safety of the treatment, and brought new hope to complex and incurable tumors.