IMRT patient QA

Test IMRT plan delivery versus TPS calculation in the treatment gantry position:

• Replace patient 3D model with water phantom and calculate dose distribution per field separately
• Calculate verification plan using YOUR CLINICAL dose calculation algorithm
• DICOM export dose plane at d_max as a reference matrix
• Deliver the IMRT plan normal way while acquiring integrated image for each field
• Compare calculated versus acquired dose matrices using Epiqa

Example of some evaluation tools

• Profiles comparison
• Point evaluation – dose difference, gamma
• Results histogram and statistics
• Flexible definition of local or global gamma criteria
• Results can be printed in a protocol

See Epiqa user experience on: A typical EPIQA example

Last update on 27. June 2011