MRI artifact reduction and quality improvement in the upper abdomen with PROPELLER and prospective acquisition correction (PACE) technique.

PROPELLER MRI: clinical testing of a novel technique for quantification and compensation of head motion.

While head motion is considered a significant problem in magnetic resonance imaging (MRI), there is no data to quantify its extent, severity, or effect on image quality. PROPELLER (Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction) MRI offers a novel means of quantifying and compensating for head motion. We performed axial T2-weighted PROPELLER (motion corrected: P-CR...

A Bayesian approach for image denoising in MRI

Magnetic Resonance Imaging (MRI) is a notable medical imaging technique that is based on Nuclear Magnetic Resonance (NMR). MRI is a safe imaging method with high contrast between soft tissues, which made it the most popular imaging technique in clinical applications. MR Imagechr('39')s visual quality plays a vital role in medical diagnostics that can be severely corrupted by existing noise duri...

Artifact Reduction in undersampled BLADE/PROPELLER MRI by k-space extrapolation using parallel imaging

M. Blaimer, K. Barkauskas, S. Kannengiesser, F. Breuer, P. M. Jakob, J. L. Duerk, M. A. Griswold Department of Radiology, University Hospitals of Cleveland and Case Western Reserve University, Cleveland, OH, United States, Siemens Medical Solutions, Erlangen, Germany, Department of Experimental Physics 5, University of Wuerzburg, Wuerzburg, Germany Introduction: BLADE (a.k.a., PROPELLER) MRI me...

Motion under Control with Prospective Acquisition Correction (PACE) MRI Hot Topics Motion under Control with Prospective Acquisition Correction (PACE)

Multi-shot Diffusion-Weighted Split-Echo PROPELLER MRI of the Abdomen

Introduction Diffusion-weighted MRI (DWI) provides a non-invasive method for in vivo evaluation of tissue water mobility. Most DWI studies employ single-shot DWEPI techniques which can suffer severe artifacts and image distortion in abdominal imaging applications. Multi-shot TSE-based DW-PROPELLER [1] may overcome these limitations. DW-PROPELLER for brain [2] and abdominal [3] imaging has demon...