Gleneagles Hospital able to start treating patients sooner with Elekta’s Accelerated Go Live

2020年2月，新加坡的Gleneagles医院接受了新的Versa HD™ linear accelerator（Linac），完成Hexapod™EVO RT系统用于精确患者定位六个自由和Elekta主动呼吸coordinator™用于呼吸运动管理。他们还购买了Brainlab Exactrac^®用于在处理过程中旋转时的图像采集。由于Covid-19大流行，因此感谢Elekta的加速（AGL），他们能够委托新的LinaC并获得信心，以便开始治疗患者的治疗患者。尽管Covid-19大流行。

Replacing an old Siemens Oncor™ linac, the department wanted to beam match the new Versa HD to their existing Elekta Synergy^®如有必要，Linac，以允许更简单的工作流程，并轻松将患者从一台机器转移到另一台机器。

“拥有两个具有相同工作流的光束匹配的线条可确保整个部门熟悉两种机器的过程，这降低了人类错误的风险，”首席物理学家Tay Yak Koon先生。“我们还希望以有效的方式对治疗SRS和SBRT患者进行高剂量率模式，因为我们的目标是增加我们表现的立体定向治疗的数量。”

“Another important factor in selecting Versa HD over other premium linacs, was our desire to have ‘golden beam data’, which would provide confidence and assurance of the quality of our measured data,” Mr. Tay says. “Based on our requirements, our Elekta sales team in Singapore recommended the Elekta AGL installation and commissioning program, not only to provide high quality reference data, but also to reduce commissioning time considerably.”

在过去，机器安装可能需要七周时间，又为验收测试和梁造型而另外五周。ELEKTA AGL通过优化流程和减少安装和调试时间，帮助诊所更快地成为运营。在Gleneagles医院，安装了Versa HD只需10天。调试过程的第一阶段 - 接受测试 - 在2天内完成，然后第二级 - 梁建模和验证 - 仅在2周内完成（图1），这是节省60％的时间。

Figure 1. The Gleneagles Hospital beam modelling and validation timeline

准备平滑安装

AGL进程的第一步是为Elekta AGL项目经理和一些团队与中心会面，以计划和讨论安装和调试程序的细节。

“The kick-off meeting with Elekta prior to installation of the linac prepared us well for what was required during the commissioning process.”

“The kick-off meeting with Elekta prior to installation of the linac prepared us well for what was required during the commissioning process,” continues Mr. Tay. “We received information about the type of equipment, measurements and time that would be required. We were also provided with information, such as the reference percentage depth dose measurements and beam profiles, which was extremely valuable in our preparation.

“这次会议帮助我们了解测量的要求，以便我们可以正确地设置水箱并选择每个测量的右腔室，”他补充道。“这项准备有助于减少对重新测量的需求。”

Assuring highly accurate measurements

Once Versa HD was installed in its bunker, the process of beam modelling began. AGL reduces data gathering requirements for this step of the commissioning process by providing high quality, reliable, reference beam data, including beam profiles and precent depth doses (PDD) for all photon and electron energies. This reduces commissioning time dramatically and enhances safety by eliminating potential errors that could occur during data collection.

With AGL, beam data collection, beam modelling and beam model validation for 6 MV, 10 MV and electron square applicators was completed in just two weeks at Gleneagles hospital (figure 1), despite a brief pause at the beginning due to coronavirus restrictions. The AGL beam models were well within tolerances in term of dose accuracy.

“The reduced set of beam data that had to be collected with AGL shortened the time needed to acquire the complete set of beam data for摩纳哥^®,” comments Mr. Tay. “In addition, the waiting period for beam model delivery was drastically reduced. We got the models back within three days. It was quick and fast, and the Model Delivery Package was even better than we expected.

“The Monaco Commissioning Utility enhanced the beam model validation process,” he continues. “Some of the QA templates were very useful. A set of express QA plans is provided for verifying the dose output and fine-tuning parameters, such as MLC leaf tip offset position, MLC transmission and leaf tip leakage. This included open field plans and a series of step and shoot IMRT plans. We performed further verification using some VMAT QA plans from some previous patients to compare the results.

“总的来说，我对结果非常满意，”Tay先生评论。“摩纳哥调试公用事业报告中，所有测量的通过率超过95％。这使我们对设置的质量和测量数据中的信心 - 我们肯定会知道我们的患者安全且纠正。“

节省时间和精力

Elekta支持离线意味着本月allation and commissioning of the new Versa HD at Gleneagles Hospital was completed quickly with very little work required from the customer. This support included on-site Elekta application specialists for Versa HD installation, beam data collection, beam model validation, and machine matching well within AGL tolerance, as well as off-site support from Elekta’s Global Physics and Service Support teams.

“It was a cross-team effort to keep this AGL journey at Gleneagles Hospital right on track,” says Steven Neo, Project Manager, Elekta. “We were delighted to fulfill Accelerated Go Live as planned to our customer despite the challenges presented by the Covid-19 pandemic.”

“通过Elekta AGL，我们的初步意图是具有高度可靠的调试参考数据，但我们很高兴在调试过程中有大量节省的额外利益。”

“With Elekta AGL, our initial intention was to have highly reliable commissioning reference data, but we were delighted to have the additional benefit of significant time savings during the commissioning process,” concludes Mr. Tay. “Faster installation and commissioning of the Versa HD gave us more bandwidth to complete other projects during that time, such as commissioning the BrainLab ExacTrac system. In addition, beam matching with our existing Elekta Synergy meant we could start treating patients earlier than we planned. Our original target to complete the commissioning process was June 2020 but, with Elekta AGL, we managed to complete beam model validation by the end of March 2020, saving us almost 3 months. The whole AGL process was extremely time efficient and better than we expected.”

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Gleneagles Hospital, Singapore Gleneagles医院是一个258床的设施，提供广泛的专业服务，包括肿瘤学，心脏病学，肝脏移植，胃肠学，矫形外科和体育医学以及妇产科。bob软件苹果怎么下载自2006年以来，Gleneagles医院已被联合委员会国际（JCI）认可 - 这是一个国际认可的患者和员工安全标准 - 反映了该组织对优质医疗保健的承诺。 Gleneagles Hospital’s Radiation Oncology Centre employs two radiation oncologists, two medical physicists, and six radiation therapists, treating around 300-400 patients every year. In addition to their Elekta Versa HD and Synergy linacs, the team uses the MOSAIQ®oncology information system and Monaco treatment planning software.