伽玛刀
尽管它的名字, the 伽玛刀 isn't a knife but is a machine that delivers a single, 精确聚焦的, 对目标的高剂量辐射, while causing little or no damage to surrounding tissue. 异常小于3厘米, 或者说直径1英寸, 可以用伽玛刀治疗吗.
今天, patients with serious disorders can be treated with this noninvasive procedure in one day with no overnight hospital stay.
加州大学旧金山分校, which launched its 伽玛刀 Radiosurgery Program in 1991, was the first medical center in Northern California to use a Leksell 伽玛刀 to treat brain disorders. Since then, more than 3,600 patients have been treated using this state-of-the-art equipment. In 2007, 加州大学旧金山分校获得了Perfexion Leksell伽玛刀, which offers the most precise treatment with improved patient comfort.
In 2011, 加州大学旧金山分校 acquired an Extend Frame for the 伽玛刀 that enables multi-session treatments, 叫做分馏处理, for larger lesions or those in more sensitive locations.
谁应该接受伽玛刀治疗
Factors considered in evaluating a patient for 伽玛刀 treatment include a patient's age and general medical condition, location and size of the brain abnormality and previous treatments. If it is decided that 伽玛刀 is not the best treatment option, 其他治疗方法将被讨论.
Some conditions are more effectively treated with a non-invasive radiosurgery device called the 射波刀 that uses a robotic arm to deliver highly focused beams of radiation. 加州大学旧金山分校, the 射波刀 is used to treat areas of the body that can't be treated by other radiosurgery techniques, 比如脊柱或脊髓.
Radiation exposure to other parts of the body is extremely low, making it an excellent option for children and women of childbearing age.
If you're treated at 加州大学旧金山分校, your referring doctor plays an important role. He or she will be consulted during all phases of your treatment.
病人 who are candidates for 伽玛刀 are reviewed at our weekly 伽玛刀 conference. Each patient's condition is evaluated by a team including neurosurgeons, 放射肿瘤学家, 物理学家, neuro-radiologists, 神经肿瘤学, 护士和放射治疗师.
治疗准备
在伽玛刀手术之前, patients visit the hospital for possible blood tests, and to meet with the doctors and nurse who will participate in the procedure. Depending on your condition, your doctors may include a radiation oncologist or neurosurgeon. 在您的术前咨询期间, 你的十大赌博平台排行榜会记录你的病史, perform a physical examination and provide time for you to ask questions. 阅读更多关于手术准备的信息.
过程
The technique that allows the 伽玛刀 to precisely target areas within the brain is called stereotaxy. Stereotactic radiosurgery is performed with the aid of imaging techniques called 计算机断层扫描(CT), 核磁共振成像 和血管造影术. These are used together with special computer-assisted instruments to provide 3-D views of the target and surrounding brain structures. 通过研究这些图像, your doctor can accurately locate the abnormality within the brain, then precisely focus the gamma radiation beams on the abnormality.
The neurosurgeon will use local anesthesia to numb four spots on your scalp and forehead before attaching a "stereotactic frame.“这个框架允许高度精确的处理.
The treatment time will depend on your diagnosis. While the treatment is administered, you will lie on a treatment couch. Your head will be held still during the session while 192 small radiation beams are focused simultaneously at the target. The size of the focal spot can be adjusted and multiple focal spots can be combined together to deliver a high radiation dose precisely to one target or to multiple targets of almost any shape, 大脑的任何地方.
在治疗过程中，没有疼痛. 治疗后, the head frame is removed and small adhesive bandages are applied where the sterotactic frame was secured.
复苏
You may be discharged shortly after the procedure. Some patients experience a mild headache, which can be treated with medication. Discharge and follow-up instructions will be explained and you'll receive an instructional handout.
Our nurse will call you the following day to check on your status and answer any questions you may have.
The process of 伽玛刀 treatment for children is similar to the process for adults, but special care is provided for pediatric patients including imaging studies before treatment, 儿童专用麻醉, 康复及后续治疗, 如果需要.
加州大学旧金山分校健康 medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.
