🧵For those of you using @viz_ai CT brain perfusion automated software for #stroke, here's a tip to avoid the pitfall of under-calling perfusion defect. This educational tip was helpful to our teams.

#MedTwitter #neurotwitter #tweetorial 🧠 1) Example Case. 60yo F with acute right hemiplegia, LKN 12 hours ago, NIHSS 10. Noncontrast CT brain is negative. @viz_ai CTA autodetection goes off to alert for LVO and you can see left M1 occlusion below.

1) @realDonaldTrump likely was infected with #COVID19 at the @WhiteHouse superspreader event for Amy Coney Barrett, based upon the timeline of events and what we know about COVID transmission

First, reviewing the evidence on #COVID19 transmission... 2) The average incubation of #COVID19 is ~ 5 days (median 5.1, mean 5.5). Fewer than 2.5% of those infected show symptoms within 2.2 days of exposure, and symptom onset will occur within 11.5 days for 97.5% of those infected
acpjournals.org/doi/10.7326/M2…

A #stroke #tweetorial. Inferior division MCA infarct often gets mistaken for PCA territory. Sometimes it can be quite difficult to distinguish MCA vs PCA territory infarcts (especially near the borderzone). #neurotwitter #medtwitter #medstudenttwitter 1/ Reminder of topography: MCA (yellow) and PCA (green) territory. Inferior division MCA (near the borderzone of PCA) involves the occipital lobe