Radiosurgery Program


Despite the presence of the word 'surgery' in the term 'stereotactic radiosurgery', this is a non-surgical treatment for a variety of neurosurgical disorders. Developed in the 1960's, the modality focuses the energy of photons or electrons with great precision and accuracy to control tumor growth, obliterate vascular malformations or treat trigeminal neuralgia. Radiosurgery differs from conventional radiation therapy in that treatment is performed typically on a single day and focused on the target of interest with little therapeutic energy imparted to surrounding tissue.


NJBSC neurosurgeons perform radiosurgery in several area hospitals on a variety of conditions together with a team of radiation oncologists and medical physicists. NJBSC doctors were integral in establishing the radiosurgery program at Hackensack UMC nearly 20 years ago, making it the longest running program in New Jersey. The most advanced radiosurgical device-The Leksell Gamma Knife PerfexionTM system has recently been installed at the John Theurer Cancer Center and forms the centerpiece of the newly endowed Viswanathan Rajaraman and Mary Jayanthi Sundaram Gamma Knife Center.

Gamma Knife Radiosurgery by Diagnosis

Gamma Knife Radiosurgery for Metastasis by Diagnosis

Tumors Treated per Radiosurgical Session

Number of Tumors Treated per Session

Brain Metastasis: Number of Radiosurgical Sessions per Patient

Gamma Knife Sessions per Patient


George J. Kaptain, MD, Daniel K. Lee, MD, Hooman Azmi, MD, Daniel E. Walzman, MD.