What is the correct meaning of the suffix "-gram" in relation to a medical image?

The suffix "-gram" in a medical context refers specifically to a record or picture produced by various imaging techniques or diagnostic procedures. This term is derived from the Greek word "gramma," which means "something written" or "a record." When used in medical terminology, it indicates that the resulting image is a representation or a record of an anatomical structure or function within the body. For example, a "radiogram" is a record of a radiographic image, and an "angiogram" is an imaging study of blood vessels.

In this case, the choice that signifies a record or picture aligns perfectly with the established definition of "-gram" in medical terms, making it the most accurate answer. Understanding this suffix is crucial for interpreting various medical terms related to imaging and diagnostics.