Rotation effects on the target-volume margin determination

Qinghui Zhang, Weijun Xiong, Maria F. Chan, Yulin Song, Chandra Burman

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Rotational setup errors are usually neglected in most clinical centers. An analytical formula is developed to determine the extra margin between clinical target volume (CTV) and planning target volume (PTV) to account for setup errors. The proposed formula corrects for both translational and rotational setup errors and then incorporated into margin determination for PTV.

Original languageEnglish (US)
Pages (from-to)80-84
Number of pages5
JournalPhysica Medica
Issue number1
StatePublished - 2015


  • Margin
  • Radiotherapy
  • Rotation
  • Setup errors
  • Target volume

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • General Physics and Astronomy


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