?:definition
|
-
Devices designed to be implanted in or near lesions for the purpose of targeting the treatment beam during image-guided radiation therapy (IGRT) procedures. These devices consist of materials that are able to be visualized by one or more imaging methods (e.g., magnetic resonance, radiographic, ultrasonic); frequently they consist of small pieces of bare metal (e.g., gold, titanium); however, fiducial markers consisting of carbon, polymeric materials, and metal/polymer combinations are also available.
|