Agent: Mckenna Long & Aldridge LLP20100080972 - Thermoplastic composition having improved x-ray contrast, method of making, and articles prepared therefrom: Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal t