Since you're in a legal jurisdiction, your best bet is to talk to the doctor who ordered the MRI and ask them this question. Being honest with your care team about your cannabis use is probably in your best interests anyways, especially if there's no legal consequence to doing so.
unsub_81 t1_iydl1aw wrote
Reply to Will consuming cannabis before a brain MRI affect the results? by Aluhar_Gdx
Since you're in a legal jurisdiction, your best bet is to talk to the doctor who ordered the MRI and ask them this question. Being honest with your care team about your cannabis use is probably in your best interests anyways, especially if there's no legal consequence to doing so.