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Frame-Based and Mask-Based Stereotactic Radiosurgery: The Patient Experience, Compared.

Matthew Pavlica1, Troy Dawley2, Anuj Goenka3

  • 1New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, USA.

Stereotactic and Functional Neurosurgery
|February 7, 2021
PubMed
Summary

Mask-based stereotactic radiosurgery (SRS) is more comfortable and less painful than frame-based SRS. Patient experience during SRS is primarily influenced by the treatment technique, not diagnosis.

Keywords:
FrameGamma knife radiosurgeryMaskPatient experienceStereotactic radiosurgery

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Area of Science:

  • Neurosurgery
  • Radiation Oncology
  • Medical Physics

Background:

  • Noninvasive frameless stereotactic radiosurgery (SRS) is increasingly used for various pathologies.
  • Limited literature compares frame-based (FB) and mask-based (MB) SRS patient experiences.
  • Elekta Gamma Knife® Icon™ offers dual capabilities for both FB and MB SRS.

Purpose of the Study:

  • To compare patient perceptions of comfort and pain between FB and MB SRS.
  • To investigate the influence of lesion type (benign vs. malignant) on the SRS patient experience.
  • To leverage the dual capabilities of the Elekta Gamma Knife® Icon™ for comparative analysis.

Main Methods:

  • A survey of 117 patients who underwent single fraction, fractionated, or hypofractionated SRS (FB or MB) was conducted.
  • Patients completed an 8-question survey immediately post-treatment.
  • Descriptive statistics were used to analyze survey data on pain and comfort.

Main Results:

  • Mask-based SRS resulted in significantly lower reported pain (0.92 ± 2.24) compared to frame-based SRS (5.64 ± 2.55).
  • Patient comfort was significantly higher with MB SRS (p < 0.001).
  • Diagnosis (benign vs. malignant) had mixed effects; MB SRS was more comfortable for malignant diagnoses, while FB SRS comfort was unaffected by diagnosis.

Conclusions:

  • Mask-based SRS offers a more comfortable and less painful patient experience than frame-based SRS.
  • Treatment modality, rather than diagnosis, is the primary determinant of patient experience during SRS.
  • Further research with homogenous samples and follow-up is recommended to refine understanding.