前列腺放射治疗中的均质和异质增强:治疗计划和目标剂量测量比较
Yutong Zhao1, Annette Haworth2, Scott Williams3
1School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, WA, Australia; Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, China.
在前列腺放射治疗中,异质主导性前列腺内病变 (DIL) 增强可以改善瘤控制概率 (TCP). 强度调节质子疗法 (IMPT) 显示出这种方法对无毒性治疗的承诺.
科学领域:
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
- 癌症治疗方法 癌症治疗方法
背景情况:
- 提供均的主导性前列腺内病变 (DIL) 提升可以改善前列腺放射治疗中的瘤控制.
- 基于疾病特征的异质增强DIL提供了进一步升级瘤控制概率 (TCP) 的可能性.
研究的目的:
- 调查对均质和异质DIL增强剂治疗规划的实际限制和稳定性.
- 为了比较同质与异质DIL增强剂的治疗计划.
主要方法:
- 从三名高风险前列腺癌患者中选择了瘤细胞分布图.
- 衍生出异质的,基于结构的处方,以最大限度地利用TCP来实现DIL提升.
- 针对同质和异质DIL增强剂的七种模式生成和评估了治疗计划.
主要成果:
- 在不违反剂量限制的情况下生成了42个治疗计划 (21个均质,21个异质).
- 与同质计划相比,异质DIL提升计划的TCP增加超过50%.
- 强度调节质子疗法 (IMPT) 证明了通过异质的DIL增强来最大限度地实现无毒性治疗的潜力.
结论:
- 使用基于结构的处方的异质DIL提升,与同质DIL提升计划相比,实现了更高的TCP改进.
- 不同质的增强策略需要进一步研究,以优化前列腺放射治疗结果.
更多相关视频
09:49A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
Published on: April 24, 2020
07:57Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform
Published on: March 24, 2022
相关概念视频
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate
Imaging Studies III: Computed Tomography
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
