By Victoria Stern

Artificial intelligence in medicine is here. But it’s still in its infancy.

The FDA has approved about three dozen AI algorithms in medicine over the past few years, many of which aim to help physicians diagnose disease: diabetic retinopathy from retinal images, cancerous liver and lung lesions from CT and MRI scans, and breast cancer from mammograms.

Entrepreneurs and health care leaders also have jumped on board. Last year, health AI startups brought in $4 billion in