Most Advanced Brain Cancer Treatment at World Best Hospital in India

CyberKnife Radiosurgery in India

The CyberKnife Robotic Radiosurgery System improves on other radiosurgery techniques by eliminating the need for stereotactic frames. As a result, the CyberKnife System enables doctors to achieve a high level of accuracy in a non-invasive manner and allows patients to be treated on an outpatient basis. The CyberKnife System can pinpoint a tumor’s exact location in real time using X-ray images taken during the brain cancer treatment that reference the unique bony structures of a patient’s head.

The CyberKnife System has a strong record of proven clinical effectiveness.  It is used either on a stand–alone basis or in combination with other brain cancer treatments, such as chemotherapy, surgery or whole brain radiation therapy.

CyberKnife brain cancer treatments involve a team approach, in which several specialists participate. The team may include:

·         a radiation oncologist

·         a neurosurgeon

·         a medical physicist

·         a radiation therapist

·         other medical support staff

Once the team is in place, preparations begin for the CyberKnife treatment. Generally there are three steps involved:

1.     Set up and imaging

2.     Treatment planning

3.     CyberKnife treatment

Unlike other radiosurgery systems, the CyberKnife System does not require patients to be fitted with an invasive head frame. In the set-up stage, the radiation therapist will create a soft mesh mask that is custom-fitted to the patient’s face. This comfortable and non-invasive mask helps the patient keep his or her head and neck still during treatment. While wearing the mask, a CT scan will be performed. The CT data then will be used by the USC CyberKnife team to determine the exact size, shape and location of the tumor.

An MRI, PET scan or angiogram also may be necessary to fully visualize the tumor and nearby anatomy. Once the imaging is done, the face mask will be removed and stored until the CyberKnife treatment begins. Then a medical physicist and the patient’s doctor use the data to custom-design the patient’s treatment plan. The patient does not need to be present at this time.

 During the CyberKnife treatment planning phase, the CT, MRI and/or PET scan data will be downloaded into the CyberKnife System’s treatment planning software. The medical team will determine the size of the area that must be targeted by radiation and the radiation dose. They also will identify critical structures where radiation should be minimized. Using this information, the CyberKnife System calculates the optimal radiation delivery plan to treat the tumor. The treatment plan will take full advantage of the CyberKnife System’s extreme maneuverability, allowing for a safer and more accurate treatment.

  The doctors may choose to deliver the treatment in one session, or stage it over several days. Typically, brain cancer treatments are completed within five days. For most patients, the CyberKnife treatment is a completely pain-free experience. Patients dress comfortably in their own clothes and may bring their own music CD's to listen to during the treatment. Patients also may want to bring something to read while they wait, and have a friend or family member with them to provide support before and after treatment.

When it is time for treatment, the patient lies on the table while their custom-fitted face mask is secured into place. The CyberKnife System’s computer-controlled robot will move around the patient’s body to the various locations from which it will deliver radiation to the tumor. Nothing will be required of the patient during the treatment, except to relax and lie as still as possible.

Once the CyberKnife treatment is complete, most patients quickly return to their daily routines with little interruption in their normal activities. If the treatment is being delivered in stages, the patient will need to return for additional treatments over the next several days, as recommended by their doctors. Side effects vary from patient to patient. Generally some patients experience minimal side effects from CyberKnife treatments, and these often go away within a week or two. Prior to treatment, the doctor will discuss with the patient all possible side effects they may experience. The doctor also may prescribe medication designed to control any side effects should they occur.

After completing CyberKnife radiosurgery treatment, it is important that the patient schedule and attend follow-up appointments. They also must keep in mind that their tumor will not suddenly disappear. Response to treatment varies from patient to patient. Clinical experience has shown that most patients respond very well to CyberKnife treatments. As follow-up, doctors will monitor the outcome in the months and years following a patient’s treatment, often using either CT scans and/or PET-CT scans.

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