The results of the 2016 Indications Treated Survey undertaken by the Leksell Gamma Knife Society are now available.


Gamma Knife centers are treating approximately 80,000 patients per year with over 1,040,000 patients treated through 2016. The average volume treated at Perfexion and Icon centers was 309 cases—the highest average volume ever reported, There are pronounced geographic differences with regard to average volumes and case mix. The survey tracked specific statistics for approximately 70 separate indications. The top 6 indications treated were: metastases, meningiomas, vestibular schwannomas, AVMs, trigeminal neuralgia and pituitary tumors.


Indications such as ganglioglioma, meningioma grade II and III, anaplastic astrocytoma and other behavioral disorders showed relatively high growth compared to reported data 2015. 2,187 cases (2.8 % of total cases) were reported as multi-session treatments.

CLICK HERE to access the PowerPoint presentation and a more detailed report of Gamma Knife treatments broken down by region and indication.