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临床试验/NCT02123888
NCT02123888Unknown不适用

Simultaneous Cone Beam Computed Tomography (CBCT) Acquisition During Arc Radiotherapy

Sally Falk2 个研究点 分布在 1 个国家目标入组 75 人开始时间: 2011年6月最近更新:
适应症

试验速览

阶段
不适用
发起方
Sally Falk
入组人数
75
试验地点
2
主要终点
Equivalence of image quality

研究概览

简要总结

The cone beam image is a part of the radiotherapy treatment machine and uses lower energy xrays as the head of the radiotherapy machine moves around the patient in a circle. This takes pictures that give 3-dimensional information, somewhat like a CT scan. These images are better at showing the position of the tumour and surrounding soft tissues than the standard xrays that were previously used. Cone Beam Imaging Technology is not new and has been used regularly at The Christie for many years. The standard cone beam scan is taken before the actual radiotherapy treatment or after the treatment has been delivered.

Volumetric Modulated Arc Therapy (VMAT or Arc Radiotherapy) is a novel method of delivering radiotherapy that involves the continuous movement of the radiotherapy treatment machine head around the patient and MLC during radiation. Arc radiotherapy has been clinically implemented at The Christie for prostate radiotherapy treatments and work is in progress for implementation in lung radiotherapy. The continuous gantry rotation inherent to VMAT delivery makes this simultaneous imaging possible, although there are concerns associated with the impact that this may have on patient dose and image quality.

The aim of this research is to assess whether the image quality of cone beam scans taken during treatment are as good as standard cone beam scans taken before or after treatment used to determine the accuracy of patient position and the tumour coverage by radiotherapy.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
盲法
None

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 未提供

排除标准

  • 未提供

结局指标

主要结局

Equivalence of image quality

时间窗: 12 months

To show equivalence of image quality from simultaneous CBCT acquisition during delivery of arc radiotherapy with that obtained from conventional CBCT acquisition in lung and prostate patients, as assessed by user-questionnaires.

次要结局

  • Quantify impact on treatment times.(12 months)
  • Quantify inter-observer variation(12 months)

研究者

发起方
Sally Falk
申办方类型
Other
责任方
Sponsor Investigator
主要研究者

Sally Falk

Clinical Trial Project Manager

The Christie NHS Foundation Trust

研究点 (2)

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