Accuray CyberKnife S7

Our Verdict: The most versatile radiosurgery system available. Non-invasive tumor treatment with remarkable precision.

The Accuray CyberKnife S7 is a robotic radiosurgery system that mounts a compact linear accelerator on a robotic arm, enabling it to deliver focused radiation beams from hundreds of different angles with sub-millimeter precision. This allows treatment of tumors throughout the body — including brain, spine, lung, prostate, and liver — without surgical incision.

The S7 generation adds AI-driven adaptive treatment planning, faster treatment delivery, and enhanced real-time tumor tracking that compensates for patient breathing and movement during treatment. Treatments that once required weeks of conventional radiation can be completed in just 1-5 sessions.

Brain tumor radiosurgery Lung and liver tumor treatment Prostate cancer treatment Spinal tumor treatment

Specifications

Precision Sub-millimeter targeting accuracy
Beam Angles Up to 1,500+ unique beam angles
Tracking Real-time tumor motion compensation
Treatment Sites Brain, spine, lung, prostate, liver, more
Sessions 1-5 treatments vs. weeks conventional
AI AI-driven adaptive treatment planning
Arm 6-axis robotic arm with LINAC

Pros & Cons

A quick summary of where this model performs well and where it falls short.

Pros

  • Non-invasive alternative to surgery
  • Sub-millimeter precision across the body
  • Real-time motion tracking compensates for breathing
  • Treatment in 1-5 sessions vs. weeks
  • AI-adaptive treatment planning

Cons

  • Extremely expensive system
  • Not suitable for all tumor types
  • Requires dedicated treatment vault
  • Long individual treatment sessions (30-90 min)

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