Paediatric
Neurosurgery:
For anomalies and tumors of the brain
and spinal cord in infants and children. For children born with anomalies of
the brain, spinal cord, skull deformities and spinal deformities, Apollo
Hospitals offers the best care, in the form of programmable shunts for
hydrocephalus, repair of meningo-myeloceles, correction of cranio-synostosis
(early, abnormal closure of skull bones) and correction of spinal deformities.
Children with tumors of the brain and eyes are also treated.
Stereotactic
Biopsy:
Stereotactic
biopsy/aspiration involves no opening of the skull and is suitable for small,
deep seated tumors. It is performed under a CT / MRI scan guidance having
precise computer calculations. Over 1000 stereotactic biopsies and craniotomies
(open surgeries with precise localisation of the tumor by stereotaxy) have been
performed.
Stereotactic
Radiosurgery:
Stereotactic radiosurgery (SRS) uses diverse, precisely
focused radiation beams to treat tumors and diseases in the brain, neck, etc.
It is not a surgery in the
traditional sense because there is no incision. Instead, SRS uses 3-D imaging
to target high doses of radiation towards the affected area with minimal impact
on the surrounding healthy tissue.
Like other forms of radiation, stereotactic
radiosurgery works by destroying the DNA of the targeted cells. The affected
cells then lose the ability to reproduce, which causes tumors to shrink.
When doctors use stereotactic radiosurgery to treat tumors in areas of the body other than the brain, it's sometimes called stereotactic body radiotherapy (SRBT) or stereotactic ablative radiotherapy (SABR).
When doctors use stereotactic radiosurgery to treat tumors in areas of the body other than the brain, it's sometimes called stereotactic body radiotherapy (SRBT) or stereotactic ablative radiotherapy (SABR).
Types of stereotactic radiosurgery
Three types of technology are used to deliver radiation during stereotactic radiosurgery.
·
Linear accelerator (LINAC) machines use X-rays (photons) to treat cancerous
and noncancerous abnormalities in the brain and other parts of the body. LINAC
machines are also known by the brand name of the manufacturer, such as
CyberKnife, Axesse, Novalis Tx, TrueBeam and XKnife. These machines can perform
SRS in a single session or over three to five sessions for larger tumors, which
is called fractionated stereotactic radiotherapy.
·
Gamma Knife machines use 192 or 201 small beams of gamma rays to
target and treat cancerous and noncancerous brain abnormalities. Gamma Knife
machines are less common than LINAC machines and are used primarily for small
to medium tumors and lesions in the brain associated with a variety of
conditions.
·
Proton beam (charged particle radiosurgery) is the newest type of
stereotactic radiosurgery; it is available only at a few centers in the world.
Apollo Hospitals is the first to bring it to India. It can treat brain cancers
in a single session using stereotactic radiosurgery or use fractionated
stereotactic radiotherapy to treat body tumors over several sessions.
How
it works:
All types of stereotactic
radiosurgery and radiotherapy work in a similar manner.
The specialized equipment focuses many small beams of radiation on a tumor or other target. Each beam has very little effect on the tissue it passes through, but a targeted dose of radiation is delivered to the site where all the beams intersect.
The specialized equipment focuses many small beams of radiation on a tumor or other target. Each beam has very little effect on the tissue it passes through, but a targeted dose of radiation is delivered to the site where all the beams intersect.
The high dose of radiation delivered
to the affected area causes the tumors to shrink and blood vessels to close off
over time following treatment, robbing the tumor of its blood supply.
The precision of stereotactic
radiosurgery means there's minimal damage to the healthy surrounding tissues.
In most cases, radiosurgery has a lower risk of side effects compared to other
types of traditional surgery or radiation therapy.
No comments:
Post a Comment