Distortion that affects the size of the object as represented on the radiographic image is called:

Distortion that affects the size of the object as represented on the radiographic image is called:

• A. Minification
• B. Foreshortening
• C. Elongation
• D. Magnification

Answer: (D)

Magnification is the distortion that changes how big the object appears on the radiograph. It happens because the X-ray beam is divergent and the part sits between the tube and the image receptor. When the object isn’t on the same plane as the receptor, the projection on the detector can be larger than the actual size, so the image is magnified. The amount of magnification depends on the geometry—larger distances between the source, object, and receptor increase the effect. To reduce magnification, keep the part close to the receptor and use a longer source-to-image distance. Other distortions like foreshortening or elongation change shape rather than size, and minification would make the image smaller than the object.

Magnification is the distortion that changes how big the object appears on the radiograph. It happens because the X-ray beam is divergent and the part sits between the tube and the image receptor. When the object isn’t on the same plane as the receptor, the projection on the detector can be larger than the actual size, so the image is magnified. The amount of magnification depends on the geometry—larger distances between the source, object, and receptor increase the effect. To reduce magnification, keep the part close to the receptor and use a longer source-to-image distance. Other distortions like foreshortening or elongation change shape rather than size, and minification would make the image smaller than the object.