Monthly Archives: April 2026

Rethinking the Rules: Julie Yoo of a16z on Infinite Healthcare, Compound Businesses, and the New Investor Playbook

Business, Healthcare, Startups,

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Julie Yoo has seen healthcare from nearly every angle, as a founder who scaled Kyruus to 20 million patients, as a board member, and now as a General Partner at a16z leading investments in some of the most consequential AI health companies being built today.

In this conversation with StartUp Health co-founder Unity Stoakes and an interactive audience of StartUp Health community members, she unpacks the ideas she’s been putting forward publicly and the thinking behind them. Why will healthcare benefit from AI more than any other industry? What does infinite healthcare actually mean, and why did it generate such a polarized reaction? Why is she now actively encouraging the compound business model she once cautioned founders against? And what does she look for in a founder when everyone walking into a Series A looks the same on paper?

A rich, candid conversation for anyone building, funding, or thinking deeply about the future of health.

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The New Data Layer in MRI: Valerie and Codi Gharagouzloo, PhD, of Imaginostics on Building a One-of-a-Kind Vascular Health Platform

Alzheimer's Moonshot,

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What does it mean to build something that has never existed before?

In this episode of StartUp Health NOW, Unity Stoakes sits down with CEO & Co-founder Valerie Gharagouzloo and Chief Science Officer & Co-founder Codi Gharagouzloo, PhD, of Imaginostics, the health technology company reimagining what MRI can tell us about the human body. Their platform, built on a technology invented by Codi during his PhD research in 2012, creates a new quantitative data layer inside existing MRI scanners, one that replaces toxic contrast agents, delivers images judged ten times better than the gadolinium standard, and generates vascular biomarkers measurable for the first time at the individual patient level.

StartUp Health community members Valerie and Codi break down the difference between their two platforms, ImagiView™ and ImagiSight™, explain why blood-brain barrier leakage matters for Alzheimer’s and how they are finally able to measure it in individual patients, and share what their commercialization partnership with Siemens means for getting this technology into hospitals.

Twice nominated for the Prix Galien, backed by four federal research agencies, and now running a 96-patient study funded by the Alzheimer’s Drug Discovery Foundation, Imaginostics is one of the most rigorously validated zero-to-one technologies in health innovation today.

 

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