相关实验视频

Updated: Jul 23, 2026

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Published on: April 11, 2018

用电子门户成像设备为基础的3D剂量测量系统为多种模式的体积调制弧线治疗的调试和剂量测量验证:一种新的方法

Raghavendra Hajare^1,2, Sreelakshmi K K³, Anil Kumar³

¹Department of Radiation Oncology, Homi Bhabha Cancer Hospital & Research Centre, Visakhapatnam, India. rhajare13@gmail.com.

Radiological physics and technology

|March 16, 2024

概括

这项研究验证了一种电子门户成像装置 (EPID) 剂量测量系统,用于体积调制弧线疗法 (VMAT) 的调试. 该系统准确地测量了平整过器 (FF) 和无平整过器 (FFF) VMAT 的剂量,支持常规质量保证.

科学领域:

医学物理医学物理
辐射瘤学辐射瘤学
剂量测量方法剂量测量方法

背景情况:

卷度调制弧线疗法 (VMAT) 需要精确的调试和质量保证.
使用电离室的传统剂量测量方法可能是耗时且复杂的3D测量.
电子门户成像设备 (EPID) 为高效剂量测量提供了一个潜在的替代方案.

研究的目的:

为了验证基于EPID的3D剂量测量系统 (PerFRACTIONTM) 为VMAT调试.
为了评估系统在平面化波器 (FF) 和无平面化波器 (FFF) VMAT 交付中的性能.
为了比较基于EPID的测量与电离室测量和已建立的基准 (AAPM TG 119).

主要方法:

使用了AAPM TG 119和患者特定QA (PSQA) 计划中的测试套件.
在EPID上使用PerFRACTIONTM进行3D剂量测量.
根据电离室数据和TG 119标准验证的测量结果.

主要成果:

通过PerFRACTIONTM的测量结果显示,TG 119的图形在推的3%的范围内一致,与电离室的结果相似.
点剂量差异和马通过率与多机构的发现一致.
在FF和FFF束之间没有观察到测量精度的显著差异.

结论:

基于EPID的PerFRACTIONTM系统是VMAT调试和PSQA的有效和可接受的工具.
该系统的性能与传统的电离室方法相美.
将其纳入常规的VMAT质量保证程序是可行的,并建议进行进一步的多机构研究.

关键词:

3D剂量测量系统 3D剂量测量系统在EPID中,我们可以使用EPID.在活体中,活体中.在PSQAQA上,我们可以看到.在VMAT的调试中.

更多相关视频

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform

Positron 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

Instrument Calibration

Instrument Calibration

Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...

Glassware Calibration

Glassware Calibration

Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...