CyberKnife®
is the only FDA approved completely Robotic Stereotactic Radiosurgery
System available in the world that targets and destroys small and
previously inaccessible tumors or lesions anywhere the body. As a
non-invasive “operation”, CyberKnife has proven to be an effective
alternative to surgery or conventional radiation for treating vascular
abnormalities, tumors, functional disorders, and cancers with
sub-millimeter accuracy. CyberKnife gives renewed hope and the
possibility of a better quality of life, especially for patients with
tumors previously diagnosed as inoperable, and for those who have already
received the maximum amount of radiation through other treatment
methods.
CyberKnife uses advanced robotics and computer guidance to deliver
precise radiation beams to treat tumors anywhere in the body…even those
previously thought untreatable with other radiosurgery systems.A computer
program evaluates the unique shape and location of the tumor to determine
the orientation of each of the 1,200 or more beams of radiation that will
target the tumor. Each tumor generally requires one to five treatments, each
lasting 45 to 90 minutes.
Cyberknife
is the world's first and only robotic radiosurgery system which treats
tumours anywhere in the body without any surgery. Though it is called
Radiosurgery or Cyberknife- No knife is used for incision and no surgery
is performed to treat the tumours. A new hope for patients who have
inoperable or surgically complex tumors, or who may be looking for a
non-surgical option.Cyberknife radiosurgery is a non –invasive,
high-energy radiation treatment that delivers very precise beams of
radiation from many angles outside the body. The accuracy of Cyberknife
is so precise that radiation can be 'matched' to the shape of small
complex tumors, even those located near critical organs. This ability
allows Cyberknife to treat many lesions including some considered
inoperable or untreatable with surgery.
The CyberKnife Robotic Radiosurgery
System treats both cancerous and non-cancerous tumors anywhere in the
body, including the prostate, lung, brain, spine, liver, pancreas and
kidney.It provides a pain-free, non-surgical
treatment to the patients with complex tumours which are un operable or
too risky to be operated and to the patients who are looking for an
alternative to surgery. To date, more than 100,000 patients have been
successfully treated and more than 150 systems are installed worldwide.
Benefits in India
CyberKnife is so precise and accurate that radiation beams can
treat small, complex tumors near critical structures such as hearing and
vision nerves:
- Surgical-like
outcomes, without surgery
- Painless outpatient
procedure…no head frames
- Does not carry the
risks and complications associated with conventional surgery
- FDA approved to treat
tumors and lesions throughout the body
- No anesthesia
- No recovery
time…immediate return to normal activity
Cyberknife® Indications
- Lesions adjacent to
radiosensitive structures
- Complex-shaped lesions
- Previously irradiated
lesions precluding further external beam irradiation
- Recurrent lesions
after surgery
- Lesions requiring
difficult surgical approaches
- Patients who are too
frail for surgery or refuse surgery
Radiosurgery
is a form of radiotherapy. Both deliver radiation but use different means
and doses to minimize the risk of radiation damage to healthy
tissue.
Standard radiotherapy delivers small daily doses of radiation in multiple
treatment sessions over several weeks. Radiosurgery delivers radiation in
single high doses that conform closely to the tumor shape, and fall off
sharply at the edge of the tumor. Treatments can typically be done in a
single session. For some patients with large tumors, the target is
divided into smaller targets, each of which is treated with high doses in
separate daily sessions.
Stereotactic radiosurgery was
once limited to brain tumors, but today it may be used to treat other
diseases and conditions, including : -
- Astrocytoma, Glioma,
Glioblastoma Multiforme, Oligodendroglioma : - CyberKnife
offers superior conformance to tumour shape, which is important
especially for recurrence after surgery and conventional
radiotherapy. CyberKnife can also irradiate the tumour bed to delay
or prevent recurrence.
- Brain metastases :
- Radiosurgery
may be equal to surgery for single metastases and better for
multiple metastases. Advanced imaging allows CyberKnife® to treat
those that are widely dispersed.
- Spinal Tumours : - CyberKnife® is
regularly used to treat spinal metastases. It may also serve as a
treatment for many primary spinal tumours.
- Pituitary Adenoma : - CyberKnife's®
staged treatments may help to avoid or minimize the risk of visual
loss and other side effects associated with single-session
radiosurgery. Its superior conformance minimizes irradiation of
normal tissue, including the optic chiasm and hypothalamus.
- Hemangioblastoma :
- CyberKnife®
non-invasively treats the tumour nodule, usually in one session,
even in hard-to-reach areas. This is especially beneficial for Von
Hippel Lindau disease patients who can become disabled by multiple
surgeries.
- Skull Base Tumours :
- The proximity of these tumours to vital
nerve and vascular structures makes them surgically problematic.
- Meningioma :- For smaller
meningiomas, radiosurgery is an ideally non-invasive therapy.
CyberKnife® is especially safe for meningiomas adjacent to critical
structures because it can be delivered in fractions.
- Neurofibroma &
Schwannoma : - While these tumours' resistance to
radiation makes conventional radiotherapy an option only when
surgery is not, CyberKnife's® conformance makes it an effective
alternative to radiation therapy and surgery for selected patients.
- Acoustic Neuroma :
- Studies
show that CyberKnife® treatment in stages offers the highest rates
ever achieved for hearing and facial-nerve preservation besides
effective control of the tumour-growth.
- Intracranial AVMs :
- With
CyberKnife®, we can treat locations that can't be safely approached
with microsurgery or endovascular therapy. Selected AVMs have an 80%
chance of disappearing after a single treatment session though it
may take some time. CyberKnife® can also be used in conjunction with
other therapies to remove remnants.
- Spinal AVMs : - CyberKnife® is the
first and the only system to offer radiosurgical treatment of spinal
AVMs .It provides the same or even more accuracy and success as for
intracranial AVMs
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