Search results for: Marco Battiston

Items from 1 to 7 out of 7 results

article

SENSE EPI reconstruction with 2D phase error correction and channel‐wise noise removal

Elizabeth Powell, Torben Schneider, Marco Battiston, Francesco Grussu, more

Magnetic Resonance in Medicine > 88 > 5 > 2157 - 2166

Purpose To develop a robust reconstruction pipeline for EPI data that enables 2D Nyquist phase error correction using sensitivity encoding without incurring major noise artifacts in low SNR data. Methods SENSE with 2D phase error correction (PEC‐SENSE) was combined with channel‐wise noise removal using Marcenko–Pastur principal component analysis (MPPCA) to simultaneously eliminate Nyquist ghost...

article

Multi‐echo quantitative susceptibility mapping: how to combine echoes for accuracy and precision at 3 Tesla

Emma Biondetti, Anita Karsa, Francesco Grussu, Marco Battiston, more

Magnetic Resonance in Medicine > 88 > 5 > 2101 - 2116

Purpose To compare different multi‐echo combination methods for MRI QSM. Given the current lack of consensus, we aimed to elucidate how to optimally combine multi‐echo gradient‐recalled echo signal phase information, either before or after applying Laplacian‐base methods (LBMs) for phase unwrapping or background field removal. Methods Multi‐echo gradient‐recalled echo data were simulated in a numerical...

article

Comparison of multicenter MRI protocols for visualizing the spinal cord gray matter

Julien Cohen‐Adad, Eva Alonso‐Ortiz, Stephanie Alley, Maria Marcella Lagana, more

Magnetic Resonance in Medicine > 88 > 2 > 849 - 859

Purpose Spinal cord gray‐matter imaging is valuable for a number of applications, but remains challenging. The purpose of this work was to compare various MRI protocols at 1.5 T, 3 T, and 7 T for visualizing the gray matter. Methods In vivo data of the cervical spinal cord were collected from nine different imaging centers. Data processing consisted of automatically segmenting the spinal cord and...

article

Translating pH‐sensitive PROgressive saturation for QUantifying Exchange rates using Saturation Times (PRO‐QUEST) MRI to a 3T clinical scanner

Mina Kim, Aaron Kujawa, Marco Battiston, Eleni Demetriou, more

Magnetic Resonance in Medicine > 84 > 4 > 1734 - 1746

Purpose To translate the recently developed PRO‐QUEST (Progressive saturation for quantifying exchange rates using saturation times) sequence from preclinical 9.4T to 3T clinical magnetic field strength. Methods Numerical simulations were performed to define the optimal saturation flip angles for PRO‐QUEST saturation pulses at 3T and demonstrate the effect of a ∆T₂ error on the exchange rate (k...

article

Fast bound pool fraction mapping via steady‐state magnetization transfer saturation using single‐shot EPI

Marco Battiston, Torben Schneider, Francesco Grussu, Marios C. Yiannakas, more

Magnetic Resonance in Medicine > 82 > 3 > 1025 - 1040

Purpose To enable clinical applications of quantitative magnetization transfer (qMT) imaging by developing a fast method to map one of its fundamental model parameters, the bound pool fraction (BPF), in the human brain. Theory and Methods The theory of steady‐state MT in the fast‐exchange approximation is used to provide measurements of BPF, and bound pool transverse relaxation time (

T_{2}^{B}

). A sequence...

article

An optimized framework for quantitative magnetization transfer imaging of the cervical spinal cord in vivo

Marco Battiston, Francesco Grussu, Andrada Ianus, Torben Schneider, more

Magnetic Resonance in Medicine > 79 > 5 > 2576 - 2588

Purpose To develop a framework to fully characterize quantitative magnetization transfer indices in the human cervical cord in vivo within a clinically feasible time. Methods A dedicated spinal cord imaging protocol for quantitative magnetization transfer was developed using a reduced field‐of‐view approach with echo planar imaging (EPI) readout. Sequence parameters were optimized based in the...

article

Fast and reproducible in vivo T₁ mapping of the human cervical spinal cord

Marco Battiston, Torben Schneider, Ferran Prados, Francesco Grussu, more

Magnetic Resonance in Medicine > 79 > 4 > 2142 - 2148

Purpose To develop a fast and robust method for measuring T₁ in the whole cervical spinal cord in vivo, and to assess its reproducibility. Methods A spatially nonselective adiabatic inversion pulse is combined with zonally oblique‐magnified multislice echo‐planar imaging to produce a reduced field‐of‐view inversion‐recovery echo‐planar imaging protocol. Multi‐ inversion time data are obtained by...

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INFONA - science communication portal

Search results for: Marco Battiston

SENSE EPI reconstruction with 2D phase error correction and channel‐wise noise removal

Multi‐echo quantitative susceptibility mapping: how to combine echoes for accuracy and precision at 3 Tesla

Comparison of multicenter MRI protocols for visualizing the spinal cord gray matter

Translating pH‐sensitive PROgressive saturation for QUantifying Exchange rates using Saturation Times (PRO‐QUEST) MRI to a 3T clinical scanner

Fast bound pool fraction mapping via steady‐state magnetization transfer saturation using single‐shot EPI

An optimized framework for quantitative magnetization transfer imaging of the cervical spinal cord in vivo

Fast and reproducible in vivo T₁ mapping of the human cervical spinal cord

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INFONA - science communication portal

Search results for: Marco Battiston

SENSE EPI reconstruction with 2D phase error correction and channel‐wise noise removal

Multi‐echo quantitative susceptibility mapping: how to combine echoes for accuracy and precision at 3 Tesla

Comparison of multicenter MRI protocols for visualizing the spinal cord gray matter

Translating pH‐sensitive PROgressive saturation for QUantifying Exchange rates using Saturation Times (PRO‐QUEST) MRI to a 3T clinical scanner

Fast bound pool fraction mapping via steady‐state magnetization transfer saturation using single‐shot EPI

An optimized framework for quantitative magnetization transfer imaging of the cervical spinal cord in vivo

Fast and reproducible in vivo T1 mapping of the human cervical spinal cord

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Fast and reproducible in vivo T₁ mapping of the human cervical spinal cord