Take breast cancer as an example. When a patient develops a tumor, he may face resection of the body part. Ms. Yan, 51, is one such patient.Because she was diagnosed with left breast breast cancer, she underwent reconstruction such as modified radical mastectomy at Hunan Cancer Hospital in August this year.
Operation
. According to Ms. Yan’s condition, she has a high risk of recurrence and requires postoperative adjuvant radiotherapy.
According to relevant literature reports, postoperative adjuvant radiotherapy such as radiotherapy and chemotherapy can not only reduce 2/3 of the local and regional recurrence rate, but also further improve the survival rate of patients. For breast reconstruction patients with high risk of recurrence, postoperative adjuvant radiotherapy Is essential.
However, 80-90% of tumor recurrence after radical mastectomy occurs in the subcutaneous lymphatics. Therefore, the affected chest wall is the main target area of radiotherapy after breast reconstruction for breast cancer. Both high-energy X-rays and electronic rays have dose-building effects, which will lead to Insufficient dose to the skin surface of the chest wall. The radiotherapy tissue compensator can effectively increase the radiation dose on the skin surface. However, due to the presence of the curvature of the chest wall after breast reconstruction and the uneven surface of the chest wall, there must be an air gap between the chest wall and the compensation membrane, which leads to the actual exposure dose of superficial tissues With greater uncertainty, the dose distribution in the target area does not match the radiotherapy plan, which affects the efficacy of radiotherapy.
According to Ms. Yan’s condition, Chief Physician Hu Ying, deputy director of the Second Department of Thoracic Radiotherapy of the hospital, and his team formulated a “personal exclusive” radiotherapy plan for Aunt Yan: innovatively3D printingTechnology combined with radiotherapy technology, successfully implemented3D printing
simulation
The new technology of human tissue material compensator, the artificial human tissue material is
food
Grade, density is 1.06, close to water, can be reused and boiled for disinfection. It not only effectively improves the stability of the dose and dose of chest wall skin radiotherapy, but also provides precise and individualized treatment for patients.
Chief physician Hu Ying said,3D printingThe application of tissue compensator in breast reconstruction of breast cancer is currently a leading technology at home and abroad.3D printingTissue compensation is application3D printingTechnology, based on the data of each patient’s body surface curvature, uses a tissue compensator made of a simulated human tissue material with uniform texture, electron density close to water, short production time, and easy shaping.
“Tailor-made”3D printingThe tissue compensator has obvious advantages such as a high degree of individualization and a high degree of fit with the patient’s body surface, and it also has uniformity, conformity, and
biology
Equivalence and repeatability, so it can effectively improve the accuracy and stability of radiotherapy dose, reflect the concept of precise radiotherapy for breast cancer to the greatest extent, and achieve the best
Medical treatment
quality.
(Editor in charge: admin)
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