title: Magnetic resonance 4D flow reveals unusual hemodynamics associated with aneurysm formation and a possible cause of cryptogenic stroke in a patient with aortic dissection.
abstract: Four-dimensional flow is a magnetic resonance technology that has undergone significant technical improvements in recent years. With increasingly rapid acquisition times and new postprocessing tools, it can provide a tool for demonstrating and visualizing cardiovascular flow phenomena, which may offer new insights into disease. We present an interesting clinical case in which 4-dimensional flow demonstrates potential etiologies for 2 interesting phenomena in the same patient: (1) development of an unusual aneurysm and (2) cryptogenic stroke.
authors.affiliation: From the *Department of Diagnostic Radiology, Mayo Clinic, Rochester, MN; †Siemens Healthcare, Rochester, MN; ‡Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN; §Siemens Healthcare, Erlangen, Germany; and ∥Siemens Corporate Research, Princeton, NJ.
authors.forename: Phillip Matthew
authors.initials: PM
authors.lastname: Young
authors.forename: Kiaran P
authors.initials: KP
authors.lastname: McGee
authors.forename: Bradley
authors.initials: B
authors.lastname: Bolster
authors.forename: Lyle D
authors.initials: LD
authors.lastname: Joyce
authors.forename: Andreas
authors.initials: A
authors.lastname: Greiser
authors.forename: Jens
authors.initials: J
authors.lastname: Guehring
authors.forename: Mehmet Akif
authors.initials: MA
authors.lastname: Gulsun
mesh_terms: D017545:Aortic Aneurysm, Thoracic / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology*; D001783:Blood Flow Velocity; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D020521:Stroke / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed