A review of 3 current radiosurgery systems

Area of Science:

• Neurosurgery
• Radiation Oncology
• Medical Technology

Background:

• Stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (FSRT) are established treatments for intracranial lesions.
• Technological advancements now permit non-cranial and spinal axis applications of these techniques.
• This review focuses on three prominent commercial systems: Gamma Knife, Novalis, and CyberKnife.

Purpose of the Study:

• To compare three widely used commercial stereotactic radiosurgery systems.
• To analyze the features and capabilities of Gamma Knife, Novalis, and CyberKnife systems.
• To provide insights for clinicians selecting the most appropriate radiosurgery technology.

Main Methods:

• A literature review and interviews with US practitioners were conducted.
• Comparative analysis focused on system features and operational aspects.
• Cost-benefit analysis was excluded due to scope limitations.

Main Results:

• An objective, unbiased comparative analysis was not feasible due to a lack of standardized metrics.
• Disparate features of the Gamma Knife, Novalis, and CyberKnife systems were identified and contrasted.
• The review highlights the need to consider system-specific data despite current limitations.

Conclusions:

• Selection of the optimal radiosurgery system requires careful consideration of operational features, capabilities, and capacity.
• The radiosurgery team's composition, practice case mix, and clinical unit objectives are critical factors in system choice.
• Tailoring system selection to specific clinical needs is essential for effective treatment delivery.