A marker translates something the radiologist sees on the skin into something visible on the image. A scar, a palpable mass, an entry wound, a planning reference point — each is marked so that the interpretation does not rest on the memory of whoever performed the study.
The range includes lead balls and lines in various diameters, arrows on a transparent adhesive carrier, and non-metallic CT markers that produce no artefacts.
Typical applications
Markers are used wherever a position on the skin must be reproduced on the image or between separate studies.
- Marking palpable masses and skin lesions
- Reference points at CT simulation for radiotherapy
- Marking entry and exit wounds
- Side and position labelling on the image