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- Feature Overview
- Patient QA
- Machine QA
- Specifications
With FractionCHECK, answer these questions:
- Did my machine have any large delivery errors?
- Is my beam turning off when it should?
- Are my MLC leaves moving within acceptable tolerances?
- Did my machine have any large delivery errors?
- Is my beam turning off when it should?
- Are my MLC leaves moving within acceptable tolerances?
Applications
- Perform daily audits of all treatments in less than 1 minute
- Detect single fraction delivery errors
- Compare planned and actual fluence
- Analyze many aspects of Linac and MLC performance
- Save raw log file data to a single file 1% the size of log files
Benefits
- Patient QA
- Per fraction patient QA improves patient safety
- Verify accuracy of every treatment fraction for each patient
- Tolerances include pass / warn / fail criteria
- Analyze thousands of treatment logs at once, and draw meaningful conclusions
- Fluences use a Gaussian kernel to better simulate in vivo conditions
- Machine QA
- Analyze many aspects of Linac and MLC performance
- Identify MLC motors in need of replacement
- View machine performance over time
FractionCHECK Presentation:
Use your Varian® linac's log files for patient QA:
- Detect treatment delivery errors for any fraction
- View delivery accuracy for a single patient over the treatment course
- Have therapists perform daily and/or weekly treatment QA
- Determine beam off lag time when something is wrong
- Generates planned and delivered fluences and calculates gamma
- Applies a Gaussian kernel to fluences to better represent dose
Use your Varian® linac's log files for machine QA:
- View machine performance over time
- Evaluate effect of increasing dose rate relative to beam off
- Evaluate whether the dose rate should be lowered for more accurate treatments
- Determine if any MLC leaves or motors require repair
- Determine if MLC performs well at all gantry angles
- Determine how much time is spent during beam off
- Compare delivery accuracy of different techniques (step and shoot, dynamic, VMAT)
Set automatic analysis tolerances based on:
- MLC RMS error – applied to each leaf and A and B carriages
- Carriage RMS error – applied to the carriage’s position
- Percent pixels passing gamma
- Beam off lag
