and his team to create a prototype, which was ultimately approved by Health Canada. Elekta adopted the new technology, and collaborated with David J. His team took a few years to design an initial prototype, then shared the idea with Elekta and patented it. David Jaffray, Head of the Department of Medical Physics in the Radiation Medicine Program at Princess Margaret, had been working on integrating imaging systems into radiotherapy machines. Tailor cancer treatment, while maximizing patient comfort, immobilization accuracy, optimizing patient scheduling and allow multi-day treatments.
To address some of these concerns and give clinicians more treatment options, a new technology was developed to enhance the Leksell Gamma Knife called the “ICON.” The ICON technology would provide clinicians more options to
“So it is resource intensive on that day and if something goes wrong you have to start the process over again.” Radiation Oncologist at Sunnybrook’s Odette Cancer Centre. “There is a lot of pressure to do the planning and preparation on the day when the patient has the frame on,” said Dr. When several patients are treated on the same day, it can also be quite demanding on the clinicians. “With the Gamma Knife, we’ve always delivered single fraction radiotherapy because the frame is too uncomfortable to put on for more than one day.” David Shultz, Co-Director of the Brain Metastasis Clinic at Princess Margaret Cancer Centre. “The frame limits the ability to treat lesions with more than one fraction of radiation,” said Dr. In most other types of radiation, the full dose is usually divided into a number of smaller fractions. The patient is then imaged with CT and MR scanners the clinician designs a treatment plan based on these images, and the patient is treated later the same day. Immobilized on the treatment table, allowing the deposition of the high dose radiation to the tumour site.Ī patient’s typical day starts out in the early morning, when the neurosurgeon attaches the frame to the patient’s head. With the frame surgically attached to the patient’s skull, the patient is rigidly The frame is part of the highly sophisticated Leksell Gamma Knife, which uses 192 small individual beams targeting the tumours in a patient’s brain.
Radiation oncologists and neurosurgeons have traditionally used a surgically-placed metal frame when treating brain metastases and benign tumours, such as meningiomas and vestibular schwannomas, with high single doses of radiation. THIS IS AN EXCERPT FROM THE 2017-2018 ANNUAL REPORT.
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