MR angiography of the central nervous system. Basic flow phenomena.
To properly understand MR angiography and its artifacts, one needs to be firmly grounded in the basic physics of MR flow. Concepts such as "flow-related enhancement" are crucial to a proper understanding of time-of-flight MR angiography. Phase contrast MR angiography draws from the same principles used to explain "even echo rephasing." This article not only provides a physical basis for MR angiography but also explains the flow phenomena observed on routine MR images.
Bradley
W G
WG
Magnetic Resonance Imaging Center, Long Beach Memorial Medical Center, California, USA.
D016477:Artifacts; D002490:Central Nervous System / Q000098:blood supply; D003971:Diastole; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods*; D011673:Pulsatile Flow; D012039:Regional Blood Flow