RACER‐GRASP: Respiratory‐weighted, aortic contrast enhancement‐guided and coil‐unstreaking golden‐angle radial sparse MRI

  title={RACER‐GRASP: Respiratory‐weighted, aortic contrast enhancement‐guided and coil‐unstreaking golden‐angle radial sparse MRI},
  author={Li Feng and Chenchan Huang and Krishna P. Shanbhogue and Daniel K. Sodickson and Hersh Chandarana and Ricardo Otazo},
  journal={Magnetic Resonance in Medicine},
To develop and evaluate a novel dynamic contrast‐enhanced imaging technique called RACER‐GRASP (Respiratory‐weighted, Aortic Contrast Enhancement‐guided and coil‐unstReaking Golden‐angle RAdial Sparse Parallel) MRI that extends GRASP to include automatic contrast bolus timing, respiratory motion compensation, and coil‐weighted unstreaking for improved imaging performance in liver MRI. 

Magnetization‐prepared GRASP MRI for rapid 3D T1 mapping and fat/water‐separated T1 mapping

This study aimed to (i) develop Magnetization‐Prepared Golden‐angle RAdial Sparse Parallel (MP‐GRASP) MRI using a stack‐of‐stars trajectory for rapid free‐breathing T1 mapping and (ii) extend

GRASP‐Pro: imProving GRASP DCE‐MRI through self‐calibrating subspace‐modeling and contrast phase automation

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Free‐breathing dynamic contrast‐enhanced MRI for assessment of pulmonary lesions using golden‐angle radial sparse parallel imaging

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Repeatability and robustness of MP‐GRASP T1 mapping

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Free‐breathing cine imaging with motion‐corrected reconstruction at 3T using SPiral Acquisition with Respiratory correction and Cardiac Self‐gating (SPARCS)

To develop a continuous‐acquisition cardiac self‐gated spiral pulse sequence and a respiratory motion‐compensated reconstruction strategy for free‐breathing cine imaging.

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Intraindividual Comparison of Compressed Sensing‐Accelerated Cartesian and Radial Arterial Phase Imaging of the Liver in an Experimental Tumor Model

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Fast pediatric 3D free‐breathing abdominal dynamic contrast enhanced MRI with high spatiotemporal resolution

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6523 Automatic Bolus Analysis for DCE-MRI Using Radial Golden-Angle Stack-of-stars GRE Imaging

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Free-breathing motion-resolved XD-GRASP reconstructions provide diagnostic high-quality multiphase images in patients undergoing Gd-EOB-DTPA–enhanced liver examination, with higher score indicating more optimal examination.

Sinogram-based coil selection for streak artifact reduction in undersampled radial real-time magnetic resonance imaging.

The proposed method for automatically excluding receiver coil elements which lead to streak artifacts is robust with respect to different experimental settings and fast to be included in the online reconstruction pipeline for real-time MRI.