
Section Head ER and Trauma Radiology. Associate Professor of Radiology @uOttawaRad GI, GU, and ER Radiologist, CT Lead Radiologist @OttawaHospital
Ottawa, Ontario
Joined March 2011
- Tweets103
- Following245
- Followers95
- Likes314
D. Blair Macdonald MD retweeted
As an editor, I often read discussions that are long winded, meandering and fail to make an impact.
They feel like an after-thought rather than a key part of the paper.
Here are some tips to make your discussion better. Full credit to @sanjaysaint who taught me this years ago!
D. Blair Macdonald MD retweeted
Want to get better at diagnosing acute cholecystitis with ultrasound?
Learn about cystic artery velocity (CAv)
The private-public debate is a distraction from health care’s real problems. Yep. [Canadians] care about timely access, affordability and quality. theglobeandmail.com/opinion/…
1
D. Blair Macdonald MD retweeted
Diagnostic value of combining PI-RADS v2.1 with PSAD in clinically significant prostate cancer link.springer.com/article/10… #prostatecancer #prostateMRI #CancerResearch #MedTwitter
We must be determined to achieve positive change, but also to take a long view of what needs to be done.
We have to remember that each and every one of us is part of humanity. We must be determined to achieve positive change, but also to take a long view of what needs to be done. What is important is not to become demoralized. Optimism leads to success; pessimism leads to defeat.
D. Blair Macdonald MD retweeted
Satisfaction is characterized by inner peace. It arises from generosity, honesty and what I call ethical conduct, a way of behaving that respects others’ right to be happy.
-Staff sick or off due to COVID-19 exposure.
-Patient illness more severe, due to treatment delays in pandemic waves.
-Hospital wards overfilled due to surgery catch-up, limits ER patient admission. cbc.ca/news/canada/toronto/h…
1
D. Blair Macdonald MD retweeted
An excellent publication that will be cited for years to come coauthored by @epi_rad, @bmactweet, @brownpa79 & more! Canadian Association of Radiologists Guidance on Contrast Associated Acute Kidney Injury➡️ journals.sagepub.com/doi/ful…
D. Blair Macdonald MD retweeted
Yet another contrast AKI guideline
journals.sagepub.com/doi/ful…
jointly published in @CARadiologists and @CanJKHD
thread to come later - it is #OpenAccess - feel free to read and send bouquets (or brickbats) our way
Tim Urban essay @NYTOpinion. We think a lot about those black lines: the roads not taken, the opportunities missed, the ones that got away. But most of us greatly underestimate the size of the lush green tree of possibilities that lie ahead of us nytimes.com/2022/02/25/opini…
Thanks for the helpful education on this strategy @imgrund .
Symptom screening can stop up to 10% of transmissions from occurring.
Rapid antigen tests? Up to 80%.
FREE THE RAPID ANTIGEN TESTS!
2
D. Blair Macdonald MD retweeted
Significant immune response (antibody & T cell) in those who received a 1st dose of AstraZenca's #COVID19 vaccine followed by an mRNA vaccine for dose 2.
Data from Germany, recently published in @NatureMedicine 👇
(Many Canadian's took this approach. Solid plan...thanks, NACI.)
D. Blair Macdonald MD retweeted
Safety & wellbeing of patients, staff & community is our main priority. Starting Aug 9, all UHN employees will be required to report they have either been vaccinated against COVID19, or have tested negative with a rapid test at home & reported within 48h of their scheduled shift.
University Health Network @UHN to implement mandatory #COVID19 home testing for unvaccinated staff, by @OliviaBowden__ via @TorontoStar @drandrewb #cdnhealth #vaccination thestar.com/news/gta/2021/07…
Do what you can, when you can. #MasksMakeSense
Simple enough? It's not politics, fascism or martial law. It's science and common sense and caring for others. #MasksMakeSense #WeNotMe
@AmyTanMD @jkwan_md @KashPrime
@robshirkey @imgrund
Excellent reference @sghafoormd. An imaging based consensus definition at the sigmoid takeoff is the new correct answer.
Replying to @NickSchiedaMD
Another helpful clue to differentiate rectal vs. sigmoid is based on the vascular supply (key is identifying the “fan-like” arcade of vessels of the mesosigmoid (best seen on sagittals) = sigmoid.
👉🏻 Nice consensus paper:
doi.org/10.1097/sla.00000000…
2
I found this very helpful. Stay outdoors. Virus 🦠 x time (indoors) = risk of transmission. Outdoors, lack of coughing/sneezing/singing/close-talking, small asymptomatic groups with 2m spacing and good airflow is low risk or very low risk. erinbromage.com/post/the-ris…
1
Thanks @hswapnil and @NickSchiedaMD for pointing out this important practice changing research. The risk of NSF from group II GBCA administration in stage 4 or 5 CKD is likely less than 0.07%. Diagnostic harms of witholding GBCA may be higher in majority of your patients.
❓ How do we consent patients with #KidneyDisease for Gadolinium #MRI?
🟢 We don't
car.ca/news/new-updates-on-t…
@CARadiologists @hswapnil
❓ What is the risk of developing #NSF in at-risk patients?
🟢 Upper bound 95% CI = 0.07%
jamanetwork.com/journals/jam… @JAMA_current





























