@the_sarahe: 🧲🧠MRI BRAIN PERFUSIONS (explained) Brain perfusion sequences are looking to see what parts of the brain have more blood flow than they should, less blood flow than they should, or normal blood flow. We do this by running EPI– a.k.a. echo planar imaging – sequence. EPI sequences are fast, gradient heavy, 90° RF pulse sequences. We are able to see the function of the brain by using EPI sequence. Brain perfusion orders are common when a patient has a invasive tumor that the doctors are wanting to see how much blood flow the tumor is getting from surrounding brain tissue. We are able to inject contrast at a high rate to watch the brain fill with the contrast and then watch the contrast wash out and see how much blood flow or “perfusion“ that patient’s brain is getting. ##radiology##brain##mri##medicalimaging##radiologist

Sarah - MRI Safety & Scanning

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Saturday 15 August 2026 00:21:35 GMT

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Comments

Lazytings :

I like that you make content for new techs and also semi seasoned techs. I been a tech for three years and I catch myself watching A LOT of your videos

2026-08-15 02:25:53

Trisdon :

What contrast do you usually use for these exams and how many cc’s do you give at such a high rate?

2026-08-16 00:59:13

Sangar Khoshnaw185 :

thanks for explain please subtitles your speaking

2026-08-15 05:05:30

syd :

at my facility, when we do brain perfusion, we always inject 1/4 of the amount before we do the Swan, and then we put contrast in after two phases of the perfusion. Is that not normal? That we put a quarter of the amount in before we even start the perfusion scan?

2026-08-15 01:49:50

Kimberree :

Do you do these on ER or outpatients?

2026-08-15 03:32:56

Faisal A.O :

each phase what is the maximum time for it?

2026-08-15 00:31:18

Holly 🦋 :

Thank you for the explanation! I used to love doing these with contrast at my old job. So pretty! At my current place, we do an ASL instead. Still cool!

2026-08-15 11:00:22

Chris Milton :

What’s the point of perfusion when we can just do diffusion?

2026-08-15 02:39:28

Michelle :

❤️

2026-08-17 15:39:11

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