Doctors Are Turning to Artificial Intelligence to Diagnose Cancer Patients – By David H. Freedman On 07/16/19 at 1:38 PM EDT @ Albert Einstein presented his dissertation in 1905 at the University of Zurich


Precision Medicine Is Crushing Once-Untreatable Cancers


Newsweek Magazine

Doctors Are Turning to Artificial Intelligence to Diagnose Cancer Patients

By David H. Freedman On 07/16/19 at 1:38 PM EDT

FE_Cancer_Sidebar_Stanley Robboy
Stanley Robboy, vice-chair for diagnostic pathology at the Duke University Cancer Center Illustration by Alex Fine

HealthPrecision medicineArtificial IntelligenceCancerGenetics

Genetic testing gets most of the attention when it comes to matching cancer patients to specific treatments. But the vast majority of diagnostic information used in selecting a cancer treatment today comes not from those tests, but from under the microscope of the pathologist, who examines tissue biopsies taken during surgery. Stanley Robboy, vice-chair for diagnostic pathology at the Duke University Cancer Center, spoke with Newsweek‘s David H. Freedman about how artificial intelligence is improving diagnoses—and why some doctors are reluctant to embrace it.

Is precision medicine changing what pathologists do?
Precision medicine has been advancing for a long time. My father was a medical student when penicillin was discovered in the 1920s. For many years that was a single treatment given for infection, regardless of what the infectious organism was. By the time I was in medical school in the 1960s we had specific antibiotics for specific organisms. For many decades different cancers were treated with the same drugs. Now we can look at the individual genetic pathways of a patient’s tumor, and in the lab we can measure the different unique features of a cancer, so that we can often specify drugs that target that cancer’s individual mechanisms. Twenty-five years from now we’ll be at a whole new, deeper level of diagnostics that goes beyond genetics with new pathology tests that point to new types of drugs we can’t imagine yet.

How is AI helping?
Typically in a cancer case I’ll have to look at 30 to 40 lymph nodes to tell if the cancer has spread. Finding one or two cells can make a real difference in a patient’s prognosis. A single lymph node has about 300,000 cells and I have go through each slide trying to figure out if a single cancerous cell is hiding in there. It’s like looking for the one gray stone among 300,000 white stones on a beach. AI can be terrific at finding that one stone by going through the image in a methodical way, which means the patient is more likely to get the right diagnosis. Promoted Content


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Do some pathologists resist AI?
The issue of trust is a difficult one with AI. It’s true, there have been a lot of naysayers, and people who worry that AI will replace them. I don’t ever see turning over the final diagnosis and decision-making to a system. These breakthrough tools will help me, not replace me. They’ll relieve me of some of the most tedious, time-consuming work, freeing me up to focus on the more complex tasks. They’ll look at more of the slide in more detail than I can. And they can give me a second opinion, maybe saving me from making a catastrophic mistake. But they’ll never replace my thinking. You can give an airline pilot great auto-pilot technology that will make the pilot’s job much easier, but there will always be a need for a Sully [retired American Airlines pilot Chesley Sullenberger] who can use judgment to take over from the system and land a plane on the Hudson. There’s no AI system that can replace that judgment.

What about the impact of AI on the research side?
In my father’s day an individual physician would do the work that
helped determine whether or not a drug worked for certain patients. Ten years ago, three of us would team up to do that work. Today there might be 20 or even 40 people working together on a problem like that. In the future, an AI system will be a critical member of that team, too. Sign up for our Newsletter Sign up
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