Segmented golden ratio radial reordering with variable temporal resolution for dynamic cardiac MRI

Golden ratio (GR) radial reordering allows for retrospective choice of temporal resolution by providing a near‐uniform k‐space sampling within any reconstruction window. However, when applying GR to electrocardiogram (ECG)‐gated cardiac imaging, the k‐space coverage may not be as uniform because a single reconstruction window is broken into several temporally isolated ones. The goal of this study was to investigate the image artifacts caused by applying GR to ECG‐gated cardiac imaging and to propose a segmented GR method to address this issue.

[1]  Sungheon Kim,et al.  Golden‐angle radial sparse parallel MRI: Combination of compressed sensing, parallel imaging, and golden‐angle radial sampling for fast and flexible dynamic volumetric MRI , 2014, Magnetic resonance in medicine.

[2]  Duan Xu,et al.  Fast, free-breathing, in vivo fetal imaging using time-resolved 3D MRI technique: preliminary results. , 2014, Quantitative imaging in medicine and surgery.

[3]  Ioannis Koktzoglou,et al.  Ungated radial quiescent‐inflow single‐shot (UnQISS) magnetic resonance angiography using optimized azimuthal equidistant projections , 2014, Magnetic resonance in medicine.

[4]  M. Lustig,et al.  SPIRiT: Iterative self‐consistent parallel imaging reconstruction from arbitrary k‐space , 2010, Magnetic resonance in medicine.

[5]  D. Berman,et al.  ECG and navigator‐free four‐dimensional whole‐heart coronary MRA for simultaneous visualization of cardiac anatomy and function , 2014, Magnetic resonance in medicine.

[6]  Wei Lin,et al.  Respiratory motion‐compensated radial dynamic contrast‐enhanced (DCE)‐MRI of chest and abdominal lesions , 2008, Magnetic resonance in medicine.

[7]  Michael Elad,et al.  ESPIRiT—an eigenvalue approach to autocalibrating parallel MRI: Where SENSE meets GRAPPA , 2014, Magnetic resonance in medicine.

[8]  Andrew C Larson,et al.  Self‐gated cardiac cine MRI , 2004, Magnetic resonance in medicine.

[9]  Mehmet Akçakaya,et al.  Whole Heart Coronary Imaging with Flexible Acquisition Window and Trigger Delay , 2015, PloS one.

[10]  Jens Frahm,et al.  Real-time magnetic resonance imaging of cardiac function and flow-recent progress. , 2014, Quantitative imaging in medicine and surgery.

[11]  Olaf Dössel,et al.  An Optimal Radial Profile Order Based on the Golden Ratio for Time-Resolved MRI , 2007, IEEE Transactions on Medical Imaging.

[12]  Peter Kellman,et al.  Retrospective reconstruction of high temporal resolution cine images from real‐time MRI using iterative motion correction , 2012, Magnetic resonance in medicine.

[13]  Volker Rasche,et al.  A Small Surrogate for the Golden Angle in Time-Resolved Radial MRI Based on Generalized Fibonacci Sequences , 2015, IEEE Transactions on Medical Imaging.

[14]  Charles H Cunningham,et al.  Temporal stability of adaptive 3D radial MRI using multidimensional golden means , 2009, Magnetic resonance in medicine.

[15]  Y Wang,et al.  Coronary MR angiography: selection of acquisition window of minimal cardiac motion with electrocardiography-triggered navigator cardiac motion prescanning--initial results. , 2001, Radiology.

[16]  Karl-Heinz Herrmann,et al.  Retrospective reconstruction of cardiac cine images from golden‐ratio radial MRI using one‐dimensional navigators , 2014, Journal of magnetic resonance imaging : JMRI.

[17]  Tobias Schaeffter,et al.  Cardiac functional assessment without electrocardiogram using physiological self‐navigation , 2014, Magnetic resonance in medicine.

[18]  Rachel W Chan,et al.  The influence of radial undersampling schemes on compressed sensing reconstruction in breast MRI , 2012, Magnetic resonance in medicine.

[19]  James Sayre,et al.  High spatial and temporal resolution dynamic contrast-enhanced magnetic resonance angiography (CE-MRA) using compressed sensing with magnitude image subtraction , 2013, Journal of Cardiovascular Magnetic Resonance.

[20]  Kevin M. Johnson,et al.  High resolution three‐dimensional cine phase contrast MRI of small intracranial aneurysms using a stack of stars k‐space trajectory , 2012, Journal of magnetic resonance imaging : JMRI.