A Novel Method for Dipole Inversion in QSM with Reweighted L2-Norm using Distribution Specification

Yang, Yilin ;   Liu, Tian ;   Dong, Jianwu ;   Spincemaille, Pascal ;   Wang, Yi

Tags Magnetic resonance imaging (MRI)BrainDeconvolution

Dipole inversion is the final step of the QSM algorithm. In this step, the zero cone surface in the dipole kernel makes the...

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Collaborative Non-Local Means Denoising of Magnetic Resonance Images

Chen, Geng ;   Zhang, Pei ;   Wu, Yafeng ;   Shen, Dinggang ;   Yap, Pew-Thian

Tags Magnetic resonance imaging (MRI)BrainImage enhancement/restoration(noise and artifact reduction)

Noise artifacts in magnetic resonance (MR) images increase the complexity of image processing workflows and decrease the reliability of...

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Combined Laplacian-Equivolumic Model for Studying Cortical Lamination with Ultra High Field MRI (7 T)

Leprince, Yann ;   Poupon, Fabrice ;   Delzescaux, Thierry ;   Hasboun, Dominique ;   Poupon, Cyril ;   Rivière, Denis

Tags Modeling - Anatomical, physiological and pathologicalBrainMagnetic resonance imaging (MRI)

The fine spatial resolution and novel contrasts offered by high-field magnetic resonance allow in vivo detection of histological layers in the...

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Denoising of MR Spectroscopy Signals using Total Variation and Iterative Gauss-Seidel Gradient Updates

Joshi, Shantanu ;   Marquina, Antonio ;   Njau, Stephanie ;   Narr, Katherine ;   Woods, Roger

Tags Magnetic resonance spectroscopyBrainImage enhancement/restoration(noise and artifact reduction)

We present a fast variational approach for denoising signals from magnetic resonance spectroscopy (MRS). Differently from the TV approaches...

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Geometry Optimization of 300 Mhz MRI Overlapped Dual-Row Transmit Arrays

Kozlov, Mikhail ;   Möller, Harald

Tags Magnetic resonance imaging (MRI)BrainOptimization method

We evaluated the performance of several MRI radiofrequency dual-row transmit arrays with a range of overlapping distances, head positions,...

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Multiscale Partial Volume Estimation for Segmentation of White Matter Lesions using FLAIR MRI

Khademi, April ;   Moody, Alan R.

Tags Magnetic resonance imaging (MRI)BrainImage segmentation

For robust segmentation of white matter lesions (WML), a partial volume fraction (PVF) estimation approach was previously developed for FLAIR...

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Using Fourier Velocity Encoded MRI Data to Guide CFD Simulations

Rispoli, Vinicius de Carvalho ;   Nielsen, Jon-Fredrik ;   Nayak, Krishna ;   Carvalho, Joao Luiz Azevedo de

Tags Magnetic resonance imaging (MRI)HeartImage enhancement/restoration(noise and artifact reduction)

Fourier velocity encoding (FVE) is a promising magnetic resonance imaging (MRI) method for assessment of cardiovascular blood flow. FVE...

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