Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

AI Detects Heart Failure from One Heartbeat: Study

forbes.com

Post reply on HN
Print view View original

1–10 of 74 posts

Re: AI Detects Heart Failure from One Heartbeat: Study

#2

Post by mikece »

Perhaps the title/premise might best be summarized as based on everything we know we can detect heart failure form monitoring one's body for one heartbeat.

Along with doing a lot of good and making a lot of early catches, I suspect that relying on AI to do medical analysis is going to bring into sharp relief just how much medical science DOESN'T know about the human body and its mysteries. I think we're a long, long way away from handling medical science over to AI and the real fun of AI-guided exploration is about to begin.

Re: AI Detects Heart Failure from One Heartbeat: Study

#5

Post by et2o »

I'm going to sound like a skeptical jerk here, but 490,000 heartbeats is how many patients? From what I recall these public ECG datasets are like 20 patients who underwent longitudinal ECGs. 500k heart beats is like 5 person-days of ECG recordings.

Ninja Edit: N=~30 patients. For something like ECGs which are readily available, they really should have tried to get more patients. A single clinic anywhere does than 30 EKGs per day. Suggesting this is clinically applicable is ridiculous. It's way too easy to overfit. Chopping up a time series from one patient into 1000 pieces doesn't give you 1000x the patients.

I even think this approach probably will work. Very reasonable given recent work from Geisinger and Mayo. But why are ML people doing press releases about such underwhelming studies?

Re: AI Detects Heart Failure from One Heartbeat: Study

#8

Post by corodra »

Wasn't a similar claim made about an AI detecting skin cancer from moles? Once the AI was deployed in the real world is failed miserably. I think it was a ton of false-positives because it was trained on images where cancerous moles all had images of rulers with them and the benign ones didn't have rulers in the image. So it just picked up on the ruler as a cancer indicator.

Re: AI Detects Heart Failure from One Heartbeat: Study

#9

Post by et2o »

corodra wrote: post #8

Wasn't a similar claim made about an AI detecting skin cancer from moles? Once the AI was deployed in the real world is failed miserably. I think it was a ton of false-positives because it was trained on images where cancerous moles all had images of rulers with them and the benign ones didn't have rulers in the image. So it just picked up on the ruler as a cancer indicator.

Yeah. Long term it still looks like that idea might work out, but that was a funny story.

This paper offers like 1/1000th the evidence of that one.

Re: AI Detects Heart Failure from One Heartbeat: Study

#10

Post by Ballas »

et2o wrote: post #5

I'm going to sound like a skeptical jerk here, but 490,000 heartbeats is how many patients? From what I recall these public ECG datasets are like 20 patients who underwent longitudinal ECGs. 500k heart beats is like 5 person-days of ECG recordings. Ninja Edit: N=~30 patients. For something like ECGs which are readily available, they really should have tried to get more patients. A single clinic anywhere does than 30…

And also different sources for positive and negative samples.
Post reply on HN