Yes, SONOGRAPHIES is a Scrabble word!

Letter values in Scrabble US: S 1, O 1, N 1, O 1, G 2, R 1, A 1, P 3, H 4, I 1, E 1, S 1.

Is it a valid word?

SONOGRAPHIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

Not playable in Scrabble US: ECHOGRAPHY.