The Photon Knife is a special, minimally invasive
type of "brain surgery" that uses high doses
of radiation with pinpoint accuracy to treat and eradicate
intracranial tumors and other abnormalities. The Photon
Knife sends a laser - sharp, high-intensity X-ray
beam that delivers up to seven weeks of radiation
therapy to an area as small as five millimeters in
approximately 20 minutes. This painless procedure
is performed under local anesthesia on an outpatient
basis. No "surgery" is actually performed;
there are no incisions or bleeding. Amazingly, the
patient is able to resume normal activities the very
next day. No longer does the patient have to endure
having his or her hair shaved, lengthy hospitalization,
months of radiation therapy and debilitating side
effects.
How does the Photon Knife procedure work? The neurosurgeon
fits a stereotactic headframe on the patient during
local anesthesia. The patient then undergoes an MRI
or CT SCAN. This data is transferred to a special
treatment planning system software program. A 3-D
image of the brain and other critical anatomical structures
is created. The team pinpoints the brain tumors
exact location and calculates the proper radiation
dosage and safest radiotherapeutic approach to the
lesion. After first simulating the treatment, the
team of neurosurgeons, radiation oncologists and radiation
physicists are ready to administer the treatment.
The patient is immobilized on the couch of the Linear
Accelerator, the appropriate angle and collimator
size are chosen and the treatment initiated.
The Photon Knife can treat these type lesions and
conditions: Arteriovenous Malformations (AVMs), Acoustic
Tumors, Intractable Cancer Pain, Pituitary Tumors,
Meningiomas, Craniopharyngiomas, Pineal Region Tumors,
Metastatic Tumors, Trigeminal Neuralgia, Primary Malignant
Brain Tumors and Skull Based Tumors.