ICON™ 伽瑪刀是一組放射外科治療專用系統，被廣泛用於各種腦部疾病的放射治療。正常健康組織在接受伽瑪刀治療時的受照劑量在同類設備中為最低。伽瑪刀配備錐狀射束電腦斷層掃描（CBCT）成像系統及持續控製劑量放射的管理軟件，可進行多種方式的治療，如單次或分次治療，無框式或頭架式定位。
ICON™伽瑪刀可根據病變的大小、位置、病理、病變數量及過往已接受過的放射治療等，提供多種不同的程序選項。
伽瑪刀並非真刀，它利用192束聚焦放射線束射向目標極小、手術極困難的腦腫瘤或其他腦病變。由於伽瑪刀技術非常精準，故此能夠保障周圍健康器官組織的安全。
Step-by-step guide to understanding Gamma Knife treatment. Depending on the clinical situation, the steps of the procedure may vary.
Before the day of treatment, patients are informed about the entire procedure, including the fact that Gamma Knife radiosurgery does not require cutting or shaving a patient’s hair.
When a patient arrives for treatment, a thermoplastic mask is placed over the face or a lightweight frame is attached to the head. This prevents movement during treatment and allows the doctor to accurately locate and treat targets in the brain with microscopic precision.
A preoperative MRI image with 1-2 mm thickness is performed to locate the exact position of the target or multiple targets to be treated. Gamma Knife stereotactic immobilization of the head ensures stability and accuracy to within 0.3 mm.
Once diagnostic images that pinpoint the exact location to be treated have been taken, the Gamma Knife team develops a customized treatment plan using a highly specialized planning system. Every treatment plan is uniquely created to individually address a patient’s specific medical condition.
Before treatment begins, a patient is positioned on the Gamma Knife couch. The patient is awake during treatment and can communicate with the doctor or nurse through an audio and video connection at all times. When treatment begins, the couch moves into the dome of Gamma Knife. Gamma Knife is silent, so during treatment, patients often listen to music or fall asleep. Treatment can last a few minutes or more than an hour, depending on the number of targets, as well as the size and shape of each target. Patients are monitored at all times during the procedure.
When treatment has ended, the thermoplastic mask or head frame is removed. Some patients may experience a mild headache or minor swelling where the head frame was attached. Typically patients go home soon after Gamma Knife radiosurgery and return to their normal routine in a day or so.
Gamma Knife radiosurgery is designed to control or eliminate your clinical indication. The effects will be seen over a period of weeks or months. Physicians stay in contact with patients to monitor their progress, which may include follow-up MRI, CT or angiography images.
伽瑪刀慈善基金 – 為有需要接受伽瑪刀放射治療的腦科疾病患者提供經濟支援。
