Swedish Neurosurgeon Professor Leksell (picture) invented the Gamma Knife in 1968 as a minimal invasive alternative to open brain surgery. It employs hundreds of Gamma rays generated from Cobalt 60 sources aligned along the circumference of a sphere. With precise stereotactic target localization, all these rays are made to converge onto the target deep inside the brain, killing the tumor cells while sparing the adjacent normal brain structures. It is also called Gamma Knife radiosurgery or Gamma Knife surgery, because the procedure takes a single session. However, there is no need for general anesthesia, no risk of bleeding, infection, brain damage, and need for prolonged hospital stay. Since then, the Gamma Knife has treated more than 500,000 patients worldwide. As a result of the explosion in computer, imaging and robotic technology, the Gamma Knife also undergoes major revolution and refinement. It is now part and parcel of the neurosurgical armamentarium in most of the prestigious centers for brain surgery in USA, UK, Europe, and Asia. To date, more than 2000 peer reviewed scientific articles in the medical literature confirmed the Gamma Knife’s status as the gold standard in radiosurgical treatment of brain tumors, vascular malformations, trigeminal neuralgia and other pathologies of the brain.

1. The PERFEXION™ is the 4th generation Gamma Knife. It expands the treatment reach, offering a wider range of treatable anatomical structure including the head and neck region.

2. The PERFEXION™ significantly reduces treatment time and by virtue of its new collimator design. Patient comfort and workflow are much better than previous models.

3. The new model’s planning software GammaPlan® PFX™ provides a virtually unlimited ability for sculpting the dose distribution, enabling dynamic shaping with absolute accuracy.

4. Radiation protection takes top priority in the design of Gamma Knife. The old models of Gamma Knife already excel in radiation protection. Extra –target doses are many times less than alternative technologies. This is extremely important to protect patients especially children, pregnant women, and patients with benign brain diseases, from long-term complications of radiation. The PERFEXION takes this much further. In fact the radiation leakage is so minimal, it is now possible to have normal windows (picture) between the treatment and control rooms.