Meditronix Electron Density Phantom
The Meditronix Electron Density Phantom is a tissue-equivalent verification system designed for commissioning and quality assurance of radiotherapy treatment planning systems. Featuring removable inserts representing diverse human tissues and materials at verified electron density values, it enables accurate validation of dose calculation algorithms across inhomogeneous media and extreme density ranges.
Key Features:
- Removable tissue-equivalent cylindrical inserts with verified electron density values
- Enables dose calculation algorithm verification from low-density lung to high-density bone
- Precision-machined insert positions for reproducible phantom setup
- Supports commissioning workflows for electron and photon radiotherapy
- Compatible with CT imaging and treatment planning system dose calculations
- Covers complete range of clinically relevant and extreme density tissues
Electron Density Values and Tissue Types:
| Tissue Type | Density | Clinical Application |
|---|---|---|
| Water | 1.00 | Reference baseline |
| Lung (Inhale) | 0.205 | Low-density lung tissue |
| Lung (Exhale) | 0.507 | High-density lung tissue |
| Adipose | 0.96 | Fatty tissue regions |
| Breast | 0.99 | Breast tissue heterogeneity |
| Muscle | 1.06 | Soft tissue equivalent |
| Liver | 1.07 | Organ tissue equivalent |
| Trabecular Bone (200mg/cc) | 1.16 | Low-density bone |
| Bone (800mg/cc) | 1.53 | Medium-density bone |
| Dense Bone (1250mg/cc) | 1.82 | High-density cortical bone |
| Titanium | 4.5 | Metal implant verification |
Specifications:
| Parameter | Details |
|---|---|
| Density Range | 0.205 to 4.5 g/cm³ |
| Insert Type | Removable cylindrical plugs |
| CT Compatibility | Yes |
| TPS Compatibility | All major treatment planning systems |
| Manufactured by | Meditronix Corporation |
Applications:
- Treatment planning system commissioning and dose algorithm validation
- Dose calculation accuracy across full density range
- Metal implant and high-density material verification
- Photon and electron beam quality assurance
- Tissue heterogeneity testing and verification
- Institutional QA and regulatory compliance documentation
Workflow Benefits:
- Validates dose calculation performance across clinical density range
- Supports commissioning of new treatment planning systems
- Enables comparison between different algorithm models
- Documents institutional dose accuracy verification
- Tests extreme density scenarios including metal implants
Designed and manufactured by Meditronix Corporation in India. Electron density values verified for accurate dose calculation validation.