@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 ♬ Deep house with a feeling of running - lato