A Google artificial intelligence system was better than 6 radiologists at identifying whether patients had lung cancer, according to a new Nature Medicine study reported on by Stat News.

How it worked: When looking at a single CT scan, the algorithm detected 5% more cancers than the humans and reduced false positives by 11%. When prior images of patients were included in the evaluation, the algorithm performed the same as the radiologists.

Why it matters: Screening high-risk patients for lung cancer reduces the risk of death, but false positives can lead to unnecessary and potentially harmful surgeries.

  • About half of lung cancers are diagnosed after they have already spread.
  • "These people have a technology that will improve the precision of screening tremendously," Otis Brawley, an oncology professor at Johns Hopkins University, told Stat.

What next? The system will now be subject to further testing. Google acknowledged this, and said that it's already working with clinical partners and has had pre-submission discussions with the FDA.

Go deeper: Scientists call for rules on evaluating predictive AI in medicine

Go deeper

Updated 3 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 p.m. ET: 32,471,119 — Total deaths: 987,593 — Total recoveries: 22,374,557Map.
  2. U.S.: Total confirmed cases as of 10 p.m. ET: 7,032,524 — Total deaths: 203,657 — Total recoveries: 2,727,335 — Total tests: 99,483,712Map.
  3. States: "We’re not closing anything going forward": Florida fully lifts COVID restaurant restrictions — Virginia Gov. Ralph Northam tests positive for coronavirus.
  4. Health: Young people accounted for 20% of cases this summer.
  5. Business: Coronavirus has made airports happier places The expiration of Pandemic Unemployment Assistance looms.
  6. Education: Where bringing students back to school is most risky.
Mike Allen, author of AM
6 hours ago - Politics & Policy

Biden pushes unity message in new TV wave

A fresh Joe Biden ad, "New Start," signals an effort by his campaign to make unity a central theme, underscoring a new passage in his stump speech that says he won't be a president just for Democrats but for all Americans.

What he's saying: The ad — which began Friday night, and is a follow-up to "Fresh Start" — draws from a Biden speech earlier in the week in Manitowoc, Wisconsin:

Trump prepares to announce Amy Coney Barrett as Supreme Court replacement

Judge Amy Coney Barrett. Photo: Matt Cashore/Notre Dame University via Reuters

President Trump is preparing to nominate federal appeals court Judge Amy Coney Barrett of Indiana, a favorite of both the social conservative base and Republican elected officials, to succeed Justice Ruth Bader Ginsburg, Republican sources tell Axios.

Why it matters: Barrett would push the already conservative court further and harder to the right, for decades to come, on the most important issues in American politics — from abortion to the limits of presidential power. If confirmed, she would give conservatives a 6-3 majority on the high court.