title: Real-time interactive coronary MRA.
abstract: An interactive real-time imaging system capable of rapid coronary artery imaging is described. High-resolution spiral and circular echo planar trajectories were used to achieve 0.8 x 1.6 mm2 resolution in 135 ms (CEPI) or 1.13 x 1.13 mm2 resolution in 189 ms (spirals), over a 20-cm FOV. Using a sliding window reconstruction, display rates of up to 37 images/sec were achieved. Initial results indicate this technique can perform as a high-quality 2D coronary localizer and with SNR improvement may enable rapid screening of the coronary tree.
authors.affiliation: Magnetic Resonance Systems Research Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305-9510, USA. nayak@mrsrl.stanford.edu
authors.forename: K S
authors.initials: KS
authors.lastname: Nayak
authors.forename: J M
authors.initials: JM
authors.lastname: Pauly
authors.forename: P C
authors.initials: PC
authors.lastname: Yang
authors.forename: B S
authors.initials: BS
authors.lastname: Hu
authors.forename: C H
authors.initials: CH
authors.lastname: Meyer
authors.forename: D G
authors.initials: DG
authors.lastname: Nishimura
mesh_terms: D019034:CD-I; D003327:Coronary Disease / Q000175:diagnosis; D017352:Echo-Planar Imaging / Q000295:instrumentation*; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation*; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D018810:Magnetic Resonance Angiography / Q000295:instrumentation*; D012016:Reference Values; D012680:Sensitivity and Specificity