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AI Helps Classify Lung Cancer at the Pathologist Level (nvidia.com)
69 points by ml-engineer 6 days ago | hide | past | web | favorite | 12 comments

Very cool! We (Paperspace) just posted a tutorial on Detecting Pneumonia from X-ray scans using PyTorch for anyone interested in building some more intuitions around this type of Deep Learning: https://blog.paperspace.com/detecting-and-localizing-pneumon...

Is this in clinical use anywhere yet?

Yes, there is a whole glut of companies in this space working in close collaboration with various hospitals. I've looked at several of these and the general quality of the products is high.

Some companies are currently working in applying deep learning techniques. Arterys has cardiac, lung, and liver products...

Sounds nice, and they even have the good stuff on github with an explaining how-to article on medium.

If you're into Digital Pathology and Whole Slide Image (WSI) analysis then there is a whole undergrowth of open source tools and projects to dive into. I especially like QuPath by Pete Bankhead (https://qupath.github.io/). It has a more accessible interface than python (as in the article), it supports various machine learning algorithms and also has some nice video tutorials (https://www.youtube.com/channel/UCk5fn7cjMZFsQKKdy-YWOFQ).

I worked on this problem during my masters. I created both a deep and KNN model for early breast cancer detection, but I think the performance (accuracy and speed) is most impressive for the latter. Code: https://github.com/jszym/pprecogg

Thesis: https://www.cs.mcgill.ca/~jszymb/thesis/260528685_Szymborski...

143 images; and within 95%. I need to read more to work out which 5% is wrong, and what the 95% really means of course. I feel that calling this Pathologist level could be a stronger claim that I would make. I am hesitant to word things more strongly, but I feel dismay about the kind of claims of performance that are often made in these contexts.

What markers does a human Pathologist look for to detect Lung Cancer?

Tumors? Dark spots?

And on what type of media? Xrays? MRIs?

One of my college instructors talked about this back in 2005 - did it really take this long for the tech to mature?

One possible reason: pathology labeling can be prohibitively expensive. You're looking at paying highly-trained specialists to sit down and hand-segment regions of cell types on an entire slide.

That is definitely one bottle-neck, creating the labelled data-sets is very expensive, besides that there are a large number of privacy sensitive issues that need to be taken care of around the whole labeling process to ensure that patient confidentiality is maintained. Large datasets exist but in general are not available for research for that reason, only a few hospitals have made datasets available without restriction.

Al does it again! Where does he find the time?

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