Frameless linac-based radiosurgery for benign intracranial tumors treated with HyperArc: analysis of tumor control and toxicity - Summary - MDSpire

Frameless linac-based radiosurgery for benign intracranial tumors treated with HyperArc: analysis of tumor control and toxicity

  • By

  • Whitney S. Hotsinpiller

  • Evan M. Thomas

  • Ian Tsekouras

  • Richard A. Popple

  • Markus Bredel

  • Christopher D. Willey

  • Barton L. Guthrie

  • James M. Markert

  • Kristen O. Riley

  • John B. Fiveash

  • Drexell Hunter Boggs

  • October 21, 2025

  • 0 min

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Objective:

To investigate treatment planning, delivery, tumor control, and toxicity of patients with benign intracranial tumors treated with HyperArc™, highlighting its significance compared to traditional methods.

Key Findings:
  • HyperArc™ demonstrated high geometric accuracy with a median registration offset of 0.32 mm, outperforming traditional methods.
  • Treatment plans achieved optimal local control with minimal toxicity, with specific rates of control and toxicity.
  • Automated planning with HyperArc™ allowed for efficient and precise delivery of radiation, reducing treatment time.
Interpretation:

The study indicates that HyperArc™ is a viable option for radiosurgery of benign intracranial tumors, providing effective tumor control while minimizing toxicity to surrounding healthy tissue, with implications for clinical practice.

Limitations:
  • Single-institution study may limit generalizability of results, and potential biases in patient selection.
  • Exclusion of grade III meningiomas may affect applicability to all benign tumor types, necessitating further research.
Conclusion:

HyperArc™ is effective for treating benign intracranial tumors, offering a promising alternative to traditional radiosurgery methods, but further research is needed to validate findings across multiple institutions.

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