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SU‐FF‐T‐545: Feasibility Study for Treatment of Intracranial Multi‐Focal Stereotactic Radiosurgery with Multiple Intensity Modulated Arc Technique

Publication ,  Conference
Wang, Z; Kirkpatrick, J; Chang, Z; O'daniel, J; Willett, C; Yin, F
Published in: Medical Physics
January 1, 2009

Objectives: To investigate the feasibility of using an intensity modulated arc technique for multi‐focal intracranial stereotactic radiosurgery with a single isocenter setup to significantly decrease the treatment time. Methods: A Novalis Tx linear accelerator system with a high‐definition multi‐leaf collimator (HDMLC) was used for treatment. Multiple rotationally modulated beams with HDMLC (RapidArc, Varian Medical Systems) were used for treatment planning. Cone‐beam CT (CBCT) images were used for precise localization during treatment delivery. Patients with 2 to 5 lesions that were previously treated with conventional SRS plans using dynamic conformal arc and conformal beams were retrospectively planned with RapidArc™. Single‐arc RapidArc™, 5‐arc RapidArc™ and conventional SRS plans were compared for target coverage, conformality, dose distribution, and total monitor units. Results: Target coverage for single‐arc RapidArc™, 5‐arc RapidArc™ and conventional SRS plans are similar. The conformality and dose distributions of 5‐arc RapidArc™ plans are equivalent to or better than conventional SRS plans. However, the conformality and dose distributions of single‐arc RapidArc™ plans are slightly poorer than conventional SRS plans, though still reasonable. Overall treatment times with the single‐ and 5‐arc RapidArc™ plans were estimated to be 25% and 30%, respectively, of those of conventional SRS with 5‐isocenters. Conclusion: It is feasible to use intensity modulated arc for stereotactic radiosurgery of multiple intracranial lesions with a single setup. The treatment time can be significantly reduced with this approach. © 2009, American Association of Physicists in Medicine. All rights reserved.

Duke Scholars

Published In

Medical Physics

DOI

ISSN

0094-2405

Publication Date

January 1, 2009

Volume

36

Issue

6

Start / End Page

2649

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • 5105 Medical and biological physics
  • 4003 Biomedical engineering
  • 1112 Oncology and Carcinogenesis
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Wang, Z., Kirkpatrick, J., Chang, Z., O’daniel, J., Willett, C., & Yin, F. (2009). SU‐FF‐T‐545: Feasibility Study for Treatment of Intracranial Multi‐Focal Stereotactic Radiosurgery with Multiple Intensity Modulated Arc Technique. In Medical Physics (Vol. 36, p. 2649). https://doi.org/10.1118/1.3182043
Wang, Z., J. Kirkpatrick, Z. Chang, J. O’daniel, C. Willett, and F. Yin. “SU‐FF‐T‐545: Feasibility Study for Treatment of Intracranial Multi‐Focal Stereotactic Radiosurgery with Multiple Intensity Modulated Arc Technique.” In Medical Physics, 36:2649, 2009. https://doi.org/10.1118/1.3182043.
Wang, Z., et al. “SU‐FF‐T‐545: Feasibility Study for Treatment of Intracranial Multi‐Focal Stereotactic Radiosurgery with Multiple Intensity Modulated Arc Technique.” Medical Physics, vol. 36, no. 6, 2009, p. 2649. Scopus, doi:10.1118/1.3182043.

Published In

Medical Physics

DOI

ISSN

0094-2405

Publication Date

January 1, 2009

Volume

36

Issue

6

Start / End Page

2649

Related Subject Headings

  • Nuclear Medicine & Medical Imaging
  • 5105 Medical and biological physics
  • 4003 Biomedical engineering
  • 1112 Oncology and Carcinogenesis
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences