Accuray reports growing acceptance of CyberKnife robotic radiosurgery
9 May 2006
Sunnyvale, Calif., USA. Accuray Incorporated has announced that spinal
tumour treatments with the CyberKnife robotic radiosurgery system grew more
than 75% since the introduction of the Xsight Spine Tracking System in April
2005. The company has also announced the first installations of CyberKnife
in Greece and Vietnam.
The results of two clinical studies presented at the American Association
of Neurosurgeons (AANS) 2006 annual meeting in April supported the clinical
effectiveness of the CyberKnife System for treating tumours in the spine.
Peter C. Gerszten, M.D., associate professor of neurological surgery and
radiation oncology at the University of Pittsburgh Medical Center, presented
the results of an 87-patient study evaluating the clinical efficacy of
single-fraction radiosurgery for the treatment of spinal metastases from
lung cancer. The results demonstrated that spinal tumour patients who
underwent treatment with the CyberKnife System experienced long-term tumour
control, with 90% of patients experiencing long-term pain reduction.
"My experience with the CyberKnife System leaves little doubt in my mind
that this system is an important treatment option for patients with spinal
tumours," said Dr. Gerszten. "We have known for some time that radiosurgery
is an effective treatment for intracranial tumours. We can now offer an
effective radiosurgery treatment option for our patients with spinal
tumours, as well."
In addition, John Sinclair, M.D., division of neurosurgery, Ottawa
Hospital, presented the results of a study using the CyberKnife System for
the treatment of intramedullary spinal cord arteriovenous malformations
(AVMs) at Stanford University. Data showed that treating patients with
spinal cord AVMs using the CyberKnife System resulted in significantly
reducing the size of AVMs.
"Studies such as Dr. Gerszten's and Dr. Sinclair's further confirm the
effectiveness of the CyberKnife System to treat spinal tumours, providing a
comfortable treatment alternative to patients while maintaining
sub-millimeter accuracy," said Eric Lindquist, chief marketing officer of
The installations in Greece and Vietnam indicate growing global acceptance
of the system as an essential tool in the treatment of tumours anywhere in
the body. To date, hospitals in 11 countries outside the U.S. including
Germany, Italy, Japan, Korea, Malaysia, Netherlands, Singapore, Taiwan, and
Turkey have installed the radiosurgery System.
Last year, the Anadolu Medical Center in Turkey installed the first
CyberKnife System in Eurasia. “The addition of the CyberKnife System to
Anadolu Medical Center means that for the first time ever, patients in
Turkey and the surrounding region can access one of the most advanced cancer
treatments available,” said Dr. Kayihan Engin, director of radiation
oncology, Anadolu Medical Center. “In Turkey where lung cancer is the most
common form of cancer, the CyberKnife System will play a critical role for
treating patients with inoperable and complex tumours.”