The stroke measurement software provider Viz.ai has now raised more than $78m, pulling in funding through a GV-backed series B round.

GV, a corporate venturing subsidiary of internet and technology conglomerate Alphabet, took part in a $50m series B round for US-based stroke diagnostics technology developer Viz.ai on Wednesday.

The round was led by investment firm Greenoaks Capital and was also backed by venture capital firms Threshold Ventures, CRV and Kleiner Perkins. It boosted Viz’s overall funding to more than $78m.

Founded in 2016, Viz has created a deep learning-driven system that helps healthcare providers identify patients who have suffered an…