LEKSELL GAMMA KNIFE-
The
Leksell Gamma Knife is a state-of-the-art
revolutionarydevice which consists of an array of cobalt 60
sources that emit Gamma ray Photons at a predictable rate.
These photons may be viewed as energy beams that can be focused
in much the same way that a magnifying glass focuses sunbeams.
It delivers 201 intersecting beams of radiation to a specific
target with radiation dose gradient such that absorbed dose
in the surrounding healthy tissue is minimal. This allows
non-invasive (without opening the skull) brain surgery with
extreme precision and without injury to normal brain. When
used in conjunction with a stereotactic head frame, the precision
of delivery is 0.3 mm. Its unique design with no moving parts
gives it durability and accuracy along with operational ease.
Gamma Knife
Radiosurgery
Gamma
knife Radiosurgery is a non-invasive treatment for treating
brain diseases. It is surgery without opening of the skull
and uses gamma rays to destroy lesions in the brain. The gamma
rays are precisely aimed in such a way that maximum concentration
of radiation is directed at the diseased part of the brain
while the surrounding tissues remains unharmed.
The safety and clinical effectiveness of Gamma Knife has
been established since 1968 and more than 2,00,000 patients
have been treated till December 2002. Gamma knife can be an
alternative or adjunct to conventional open surgery of the
brain without the dangers associated with it.
Radiosurgery can be especially useful for those patients
who are not suitable for conventional open surgery due to
illness or advanced age. In several neurosurgical cases, Gamma
Knife is the only feasible treatment modality.
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