title: [Dosimetric verification of the intensity modulated radiation therapy].
abstract: OBJECTIVE
  To research the method of dosimetric verification of the intensity modulated radiation therapy (IMRT).
  
  
  METHODS
  The IMRT treatment plans were designed by Eclipse TPS and were implemented in Varian ClinacIX LA with 6MV X-ray. The absolute point doses were measured using a PTW 0.6 cc ion chamber with UNIDOS E dosimeter and the planes dose distributions were measured using PTW 2D-Array ion chamber in the phantom.
  
  
  RESULTS
  The error between the measured dose and calculated dose in the interesting points was less than 3%. The points passed ratio was more than 90% in gamma analysis method (3 mm 13%) about the plane dose distribution verification.
  
  
  CONCLUSIONS
  The method of dosimetric verification of IMRT is reliable and efficient in the implementation.
authors.affiliation: Radiotherapy Dept., The PLA 309th Hospital, Beijing, 100091. zyh309@yahoo.com.cn
authors.forename: Yuhai
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yang
authors.initials: Y
authors.lastname: Gao
mesh_terms: D011874:Radiometry / Q000379:methods*; D011879:Radiotherapy Dosage; D050397:Radiotherapy, Intensity-Modulated / Q000379:methods*