title: 3D time-resolved contrast-enhanced cerebrovascular MR angiography with subsecond frame update times using radial k-space trajectories and highly constrained projection reconstruction.
abstract: HYPR TRICKS is an acquisition method that combines radial k-space trajectories, sampling k-space at different rates (TRICKS), and a new strategy for image reconstruction that uses highly constrained backprojection reconstruction (HYPR). This approach provides 3D time-resolved contrast-enhanced MR angiograms of the cerebral vessels with subsecond frame update times and submillimeter in-plane spatial resolution. Artifacts are suppressed, and signal-to-noise ratio is well maintained, by using HYPR reconstruction.
authors.affiliation: Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Wu
authors.forename: N
authors.initials: N
authors.lastname: Kim
authors.forename: F R
authors.initials: FR
authors.lastname: Korosec
authors.forename: A
authors.initials: A
authors.lastname: Turk
authors.forename: H A
authors.initials: HA
authors.lastname: Rowley
authors.forename: O
authors.initials: O
authors.lastname: Wieben
authors.forename: C A
authors.initials: CA
authors.lastname: Mistretta
authors.forename: P A
authors.initials: PA
authors.lastname: Turski
mesh_terms: D002536:Cerebral Arteries / Q000033:anatomy & histology* / Q000473:pathology; D002560:Cerebrovascular Circulation; D003287:Contrast Media; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis; D018810:Magnetic Resonance Angiography / Q000379:methods*
chemical_list: D003287:Contrast Media; C064925:gadodiamide; D019786:Gadolinium DTPA