mental imagery vs imaging

mental imagery and imaging both are nouns.

Word	Noun	Adjective	Verb	Adverb
mental imagery	Yes	No	No	No
imaging	Yes	No	No	No

As nouns, mental imagery and imaging are synonyms defined as:

mental imagery and imaging: the ability to form mental images of things or events

Other synonyms of mental imagery include imagery, imagination.

mental imagery (noun)	imaging (noun)
the ability to form mental images of things or events	(medicine) obtaining pictures of the interior of the body
	the ability to form mental images of things or events