Toray carbon fiber component reduces X-ray radiation doses

Toray Industries Inc. has introduced a new carbon fiber-reinforced plastic (CFRP) component that reduces X-ray radiation doses by 8% while maintaining or enhancing image quality. This development addresses the challenge of minimizing patient radiation exposure during medical imaging without compromising diagnostic clarity.

The component is designed for use in X-ray examination equipment, such as mammography breast supports and cassettes. Toray aims to apply this technology across various X-ray diagnostic platforms. The need for clear, low-noise diagnostic images without increasing radiation exposure has driven demand for such innovations in medical imaging.

In Japan, the Japan Network for Research and Information on Medical Exposure gathers data on radiation doses and conducts risk assessments to optimize patient exposure. Current X-ray equipment uses CFRP components for their lightweight and radiolucent properties, but further improvements are needed to enhance image quality without raising radiation doses.

Toray's solution involves an optimized composite design using a sandwich structure with proprietary carbon fiber-reinforced foam. This design achieves low density and high rigidity while minimizing density variations, regardless of component geometry. Clinical evaluations by Associate Professor Toru Negishi from Tokyo Metropolitan University showed a 6% improvement in detective quantum efficiency over conventional CFRP, allowing for clearer diagnostic images with reduced radiation.

The component's application in equipment like mammography supports and cassettes could enhance diagnostic precision and lower medical exposure risks.