Alex Bratt

Physician. Cardiothoracic radiologist. AI hobbyist

[Alex Bratt @alexbrattmd]

Probably a watershed moment for diagnostic radiology. From a data structure/size standpoint, there is very little difference between a video and a CT/MRI. Buckle up

[Gabor Cselle @gabor]

@Google's Gemini 1.5 Pro watches and critiques a video made by @OpenAI SORA.

[Alex Bratt @alexbrattmd]

Most fascinating paper I’ve seen in a while

[Andy Keller @t_andy_keller]

Traveling waves are known to exist throughout the brain in a variety of forms — there are many hypotheses, but their exact computational role is debated.

Together with @wellingmax we built an RNN which exhibits traveling waves to see what it could do. Here’s what we think:

1/7

[Alex Bratt @alexbrattmd]

@TonyTKim @RadiologyAI @MGHImaging Thank goodness for these authors. An angel loses its wings every time a reviewer insists you provide saliency maps

[Alex Bratt @alexbrattmd]

@DeCeccoCN It was an honor!

[Alex Bratt @alexbrattmd]

Hey @NuanceInc plz use this in powerscribe

[Andrej Karpathy @karpathy]

Playing with Whisper. Fed in a 1m25s audio snippet from one of my lectures. I speak fast. I correct myself and backtrack a bit. I use technical terms (MLP, RNN, GRU). ~10 seconds later the (292 word) transcription is perfect except "Benjio et al. 2003" should be Bengio. Impressed

[Alex Bratt @alexbrattmd]

@azlenelza Like a CT scan except with CT all three dimensions are spatial. We do this kind of oblique slicing all the time

[Zachary Lipton @zacharylipton]

Insisting that authors include a LIME/SHAP/IG/TCAV/GRADCAM saliency map in a paper shd be a disqualifying offense for reviewers. Including any such map without a powerful disclaimer (“this means nothing”) shd be a disqualifying offense for authors

Extra true for ML in healthcare

[Alex Bratt @alexbrattmd]

@EricWillMD @AChoiHeart @asset25 @CardiacCTGuy @RonBlankstein @RonenRub1 @SIIM_Tweets @Heart_SCCT @Radiology_AI Impressive intuition here about the limitations of current AI

[Alex Bratt @alexbrattmd]

@Arzanauskaite @AMoustafa_MD @j_alvarezgarcia @RubenLeta @Kfarooqi @Sarah_Moharem @AChoiHeart @journalCCT @Heart_SCCT @purviparwani @AreaHjt @ToddVillinesMD @MGibreel1 Thanks again for letting me use it @AMoustafa_MD!

[Alex Bratt @alexbrattmd]

@WBrinjikji Great minds

[Paul Graham @paulg]

How to get good advice from experts: ask what they'd do in your situation. Many experts feel they should just tell you all the options and let you decide. But they usually know which is the right one, and asking what they'd do gives them permission to tell you.

[Alex Bratt @alexbrattmd]

@LiquidData @DrLukeOR There is a non-paywalled pdf link when I search for the article on Google scholar

[Alex Bratt @alexbrattmd]

🇺🇸

[Alex Bratt @alexbrattmd]

@DrLukeOR @pintodrad @myESR @ESR_Journals @UKKoeln @Baessler_Rad @DRG_de @EuSoMII Depends on the definition of translation I suppose. If translation means regulatory clearance then yes but if it means meaningful clinical adoption/penetrance I would argue no though maybe I’m missing something. In any case totally agree DL works better than radiomics.

[Alex Bratt @alexbrattmd]

@DrLukeOR @pintodrad @myESR @ESR_Journals @UKKoeln @Baessler_Rad @DRG_de @EuSoMII Sad thing is you could replace ‘radiomics’ in key point 2 with ‘deep learning’ and it would still largely be true. Granted radiomics had a head start.

[Alex Bratt @alexbrattmd]

Really heart wrenching https://t.co/lQIapb5P1c

[Alex Bratt @alexbrattmd]

@DrLukeOR The models obviously detect features that are occult to our feeble human eyes.

[Alex Bratt @alexbrattmd]

@thoracicrad Thanks! Grateful to have had the opportunity to share our work!

[Society of Thoracic Radiology @thoracicrad]

Congratulations to 2020 Best Junior Faculty Scientific Presentation Awardee @alexbrattmd for "Left Atrial Volume as a Biomarker of Atrial Fibrillation on Routine Chest CT: A Deep Learning Approach"! #thoracicrad2020

[Alex Bratt @alexbrattmd]

@EricWillMD Better late than never!

[Alex Bratt @alexbrattmd]

“Some patients also exhibited a ‘crazy-paving pattern,’”

⁦@businessinsider⁩ putting chest radiology on the map woop woop! ⁦@thoracicrad⁩ https://t.co/Hw0KqEHWJQ