1.Where in the world do you practice?

Europe

North America

Asia

Australasia

South America

2.How many years have you been in clinical practice?

Still in training

0-1 years

 2-5 years

5-9 years

10+ years

3.In an average work week how often do you see patients who have had a TIA presentation (transient symptoms with resolution within 24-hours)?

Several patients per week

At least one patient per week

One patient every second week

One patient every month

Rarely

4.How often would you order a brain MRI for them?

All or nearly all patients

Half the patients depending upon clinical presentation

Uncommonly

Never

5.At your centre, can you routinely obtain MR with DWI within 1 week of their event?

Yes

No

Sometimes

6.At your centre, can you routinely obtain MR with DWI within 2 weeks of their event?

Yes

No

Sometimes

7.If they have a DWI-negative MR scan AND based upon your clinical evaluation, you thought the most probable diagnosis was true ischemia (ie. a true TIA), with no other indication for antithrombotics, would you treat long term (ie after the first few weeks) with antiplatelet agents?

DAPT for 3-4 weeks followed by single antiplatelet agent

Single antiplatelet agent

I would not treat with antiplatelets with a DWI-negative scan

I am uncertain

8.If they have a DWI-negative MR scan AND based upon your clinical evaluation, you thought that there was at least a 50% chance that the diagnosis was a mimic (ie. there is diagnostic uncertainty), with no other indication for antithrombotics, would you treat long term (ie after the first few weeks) with antiplatelet agents?

DAPT for 3-4 weeks followed by single antiplatelet agent

Single antiplatelet agent

I would not treat with antiplatelets with a DWI-negative scan

I am uncertain

9.Would you be willing to randomize a patient with a DWI negative MRI and transient neurological symptoms with no other indication for antithrombotics to long term single-antiplatelet agents vs. no antithrombotic agent?

Yes

No

Sometimes