I need a word for "information from a scanning as it appears in the image used for diagnostics". My context is medical (physics). SPECT and CT are two scanning techniques with different information that is combined into one image: > "The **SPECT information** is classified into five classes and matched to the CT image" > >"In the resulting image the **SPECT information** is delineated more sharply So, do you know a better word than "information" or "data" in this context? EDIT: The SPECT information resembles the temperature maps overlayed on a photo in thermal scans (I don't know if this helps) [![SPECT/CT][1]][1] [1]: https://i.sstatic.net/LLRvw.png Edit 2: I realised that my question maybe needs to be a bit more precise; the projection or image is the data in the image matrix. The shape, or contour (or whatever we end up calling it) is the significant part of the image. We sometimes call these hot spots, if the measurements have high values compared to the background, or cold spots if the background is high, and there are areas with low values. **Summary** Here I list the suggestions from answers and comments with informal and formal definitions - Scan: the process of obtaining an image, also used as a synonym for the image - Projections: The SPECT raw data (one projection for each scan angle) - Image: The reconstructed data as a matrix of pixel values - Measurement: a method of determining quantity, capacity, or dimension. - Result: the output of a test or the interpretation of data (by e.g. a physician) - Contour: the edge or line that defines or bounds a shape or object. - Topography: The description of the regions of the body or of a body part, especially the regions of a definite and limited area of the surface.