Mobius3D DoseLab TG-142/Pro FractionCHECK MedPhys Files

FractionCHECK™

Fast, Simple, Powerful Per-Fraction QA


FractionCHECK is QA software which analyzes your linac’s log files. It is the only commercial software which lets you automatically verify delivery accuracy for all patient treatments, not just test fields. No measuring devices are necessary.

FractionCHECK is available either as a stand-alone module or as an add-on to DoseLab. Read further to learn the many benefits of incorporating FractionCHECK into your clinical QA toolkit.

Watch a FractionCHECK demo






FractionCHECK Overview

  • Verify accuracy of every field delivered to every patient
  • Daily or weekly QA can be performed by therapists in 1 minute
  • TG-142-compliant machine QA can be performed on test fields
  • Complete per-fraction QA solution if used with IGRT and IMRT QA
  • Supplement intermittent QA techniques (e.g., in vivo dosimetry)
  • Generates PDF reports summarizing a patient's treatment
  • Export results to PDF, XLS, DoseLab and ATLAS databases
  • FractionCHECK is the most time efficient per-fraction QA tool

FractionCHECK Performance

  • Real-time accelerator monitoring with email alerts
  • Analyzes up to 25,000 fields at once
  • Processes 500 fields per minute
  • Filters and sorts data while graphs update in real-time
  • Automatically summarizes all fields into pass / warn / fail

Machine QA Features

  • Analyze machine performance trends over months or years
  • Evaluate whether dose rate should be raised / lowered
  • Identify MLC motors in need of replacement
  • Determine if the MLC performs well at all gantry angles
  • Saves raw data to a single file ~1% the size of original files
  • Compare accuracy of step and shoot, dynamic, and VMAT deliveries
  • View beam-on and total delivery times

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Patient QA Features

  • Detect delivery errors in any fraction
  • Verify interlocks are asserted when machine is out of tolerance
  • Determine how quickly beam is terminated when interlocks occur
  • Estimate the dosimetric impact of partial deliveries
  • Generate planned and delivered fluences and perform gamma calculations using a 0.5×0.5 mm resolution
  • Simulate in vivo conditions by adjusting the Gaussian convolution kernel applied to fluences

Available Tolerances

  • MLC leaf RMS error
  • MLC carriage RMS error
  • 95th percentile |error|
  • Beam off lag (time required to turn off beam)
  • Percent pixels passing gamma

FractionCHECK Compatibility

  • Millennium 120 MLC
  • Varian HD-120 MLC
  • Millennium 80 MLC
  • Millennium / Novalis 52 MLC
  • All Varian Windows MLC controllers and 4DITC stations
  • Varian TrueBeam Trajectory Log support
  • Coming soon (Summer 2012): Elekta support


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