May 21, 2019

Google AI successfully IDs lung cancer

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

World coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

Brazil's Ministry of Health reported Sunday 15,813 new coronavirus cases and 653 more deaths within 24 hours. 362,211 have tested positive for the virus, which has killed 22,666 in the country.

By the numbers: Over 5.4 million people have tested positive for the virus as of Monday, and more than 2.1 million have recovered. The U.S. has reported the most cases in the world (over 1.6 million from 13.7 million tests). The U.K. is reporting over 36,800 deaths from the coronavirus — the most fatalities outside the U.S.

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of midnight ET: 5,401,701 — Total deaths: 345,060 — Total recoveries — 2,149,407Map.
  2. U.S.: Total confirmed cases as of midnight ET: 1,643,238 — Total deaths: 97,720 — Total recoveries: 366,736 — Total tested: 14,163,195Map.
  3. World: White House announces travel restrictions on Brazil, coronavirus hotspot in Southern Hemisphere Over 100 coronavirus cases in Germany tied to single day of church services — Boris Johnson backs top aide amid reports that he broke U.K. lockdown while exhibiting symptoms.
  4. Public health: Officials are urging Americans to wear masks headed into Memorial Day weekend Report finds "little evidence" coronavirus under control in most statesHurricanes, wildfires, the flu could strain COVID-19 response
  5. Economy: White House economic adviser Kevin Hassett says it's possible the unemployment rate could still be in double digits by November's election — Public employees brace for layoffs.
  6. Federal government: Trump attacks a Columbia University study that suggests earlier lockdown could have saved 36,000 American lives.
  7. What should I do? Hydroxychloroquine questions answeredTraveling, asthma, dishes, disinfectants and being contagiousMasks, lending books and self-isolatingExercise, laundry, what counts as soap — Pets, moving and personal healthAnswers about the virus from Axios expertsWhat to know about social distancingHow to minimize your risk.
  8. Other resources: CDC on how to avoid the virus, what to do if you get it, the right mask to wear.

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Updated 37 mins ago - Politics & Policy

U.S. coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Andrew Witherspoon/Axios. This graphic includes "probable deaths" that New York City began reporting on April 14.

President Trump doubled down on his push to reopen schools, tweeting late Sunday: "Schools in our country should be opened ASAP."

Zoom in: Trump pushed back on NIAD Director Anthony Fauci cautioning against the move earlier this month, calling his concerns "not an acceptable answer."