What are Image Algorithms?
Raw image content revealed to the eye is a function of software based processes known as Image Algorithms. It is through these software tools that image contrast and clarity are achieved. It is important to know that algorithms come in two forms: lossy and lossless. Lossy algorithms sacrifice data in creating edge enhancement process’ for more distinct transition from adjacent tissues. Lossy algorithms make for “nicer” images in some cases and do have some utility. The problem with a system that utilizes ONLY lossy algorithms is that these algorithms, when applied, can mask diagnostic information or create artifacts that can be confused for disease conditions. A classic example of this situation involves orthopedic implants. The black halo that surrounds the implant, as a result of the lossy algorithm being applied, can be erroneously be diagnosed as an infection (osteomyelitis) at worst. At best, the image can be diagnosed as “inconclusive” based on the edge enhancement being applied.
