The 3DVH Method The 3DVH Advantage
3DVH is a next generation patient dose verification
and analysis system. 3DVH can use existing IMRT or
rotational delivery measurements (e.g. MapCHECK™ or
ArcCHECK™) to perform 3D patient dose and DVH QA,
effectively eliminating dose-to-phantom guesswork.
Using conventional QA measurements, 3DVH predicts the impact on patient dose and DVH. 3DVH processes the data from a phantom-based geometry and translates to a heterogeneous patient dose-based geometry using a patent pending algorithm called “Planned Dose Perturbation” (PDP™).
3DVH = Patient relevant Dose QA
The 3D patient planned dose is perturbed using the errors measured in conventional QA.
This is the 3DVH method.
Using conventional QA measurements, 3DVH predicts the impact on patient dose and DVH. 3DVH processes the data from a phantom-based geometry and translates to a heterogeneous patient dose-based geometry using a patent pending algorithm called “Planned Dose Perturbation” (PDP™).
3DVH = Patient relevant Dose QA
- 3DVH presents patient DVH for clinically relevant dose & DVH QA
- Measured phantom dose differences are transformed to patient dose geometry
- Patent-pending PDP™ algorithm predicts 3D dose in patient
- Direct DVH, slice, and point absolute dose comparisons
- Automatic depth, SSD, and patient geometry physics corrections
- All major Linac/MLC/energy models included - no beam modeling!
Summary
3DVH avoids the uncertainty and overhead of a
duplicate dose calculation engine and introduction of
new errors.The 3D patient planned dose is perturbed using the errors measured in conventional QA.
This is the 3DVH method.
Key Benefits
- DVH Plan on Patient
- Use MapCHECK and ArcCHECK high-resolution IMRT QA results to estimate impact on
Patient Dose and DVH - Universal Comparisons
- Plan 1 vs. Plan 2 for a given TPS
- TPS 1 Plan vs. TPS 2 Plan using any TPS
- Modality “X” vs. Modality “Y”
- More...
- Plan documentation matches QA documentation
- Detailed dose information for anatomic regions-of-interest
- Understand any patient plan in clinical detail
- Make informed decisions for greater comfort levels
- Automatic depth, SSD, and patient geometry physics corrections
- Analyze in greater detail when plan quality is questioned
- See cold and hot spots impact to DVH
> See actual dose fall off in target
> See actual dose impact to critical structures
> See why more stringent QA is required today