| 摘要 |
<p>The invention provides biocompatible tubing suitable for use in the manufacture of radioactive sources, preferably radioactive seeds. The radioactive sources are for use in brachytherapy and comprise a radioisotope within a sealed biocompatible container, wherein at least one part of the outer surface of the container is grooved, preferably with a curved groove. The grooved outer surface is preferably substantially free from angularities. Such grooves enhance the echogenicity of the source using medical ultrasound at a greater range of angles to the ultrasound probe, thus enhancing the ultrasound visibility of the source.</p> |
