QRM products
Radiation Therapy
QRM - Comprehensive Electron Density Phantom for CT Radiotherapy Calibration
The Comprehensive Electron Density Phantom is designed for calibrating the Hounsfield Unit (HU) relative to electron density in CT radiotherapy treatment plans, ensuring optimal dosage for patients. This advanced phantom includes a water-equivalent body and a removable head section, each with 16 slots for interchangeable inserts that mimic various human tissues per ICRU Report 44 and 46 specifications. It accurately reproduces tissue characteristics across different densities, including bones. The device is engineered for high energy applications such as MeV electron, photon, and proton therapies, and is equally useful for kilovolt energy diagnostic imaging like Multi-Energy CT. It comes with a protocol noting physical density, electron density, electron density relative to water, and effective atomic number, with options for additional values. The accuracy rate is within ±5 HU of specified values, making it a reliable tool for precise radiotherapy planning.
