Theoretical description of modern 1H in Vivo magnetic resonance spectroscopic pulse sequences

K Landheer, RF Schulte, MS Treacy… - Journal of Magnetic …, 2020 - Wiley Online Library
This article reviews the most commonly used modern sequences designed to confront the
two major challenges of in vivo magnetic resonance spectroscopy (MRS): spatial …

Dephasing optimization through coherence order pathway selection (DOTCOPS) for improved crusher schemes in MR spectroscopy

K Landheer, C Juchem - Magnetic resonance in medicine, 2019 - Wiley Online Library
Purpose To develop an algorithm which can robustly eliminate all unwanted coherence
pathways for an arbitrary magnetic resonance spectroscopy experiment through the …

Fourier‐based decomposition for simultaneous 2‐voxel MRS acquisition with 2SPECIAL

LT Riemann, CS Aigner, R Mekle… - Magnetic …, 2022 - Wiley Online Library
Purpose To simultaneously acquire spectroscopic signals from two MRS voxels using a
multi‐banded 2 spin‐echo, full‐intensity acquired localized (2SPECIAL) sequence, and to …

A rapid inversion technique for the measurement of longitudinal relaxation times of brain metabolites: application to lactate in high‐grade gliomas at 3 T

K Landheer, A Sahgal, S Myrehaug… - NMR in …, 2016 - Wiley Online Library
The aim of this study was to develop a time‐efficient inversion technique to measure the T1
relaxation time of the methyl group of lactate (Lac) in the presence of contaminating lipids …

Diffusion‐weighted J‐resolved spectroscopy

K Landheer, R Schulte, B Geraghty… - Magnetic …, 2017 - Wiley Online Library
Purpose To develop a novel diffusion‐weighted magnetic resonance spectroscopy (DW‐
MRS) technique in conjunction with J‐resolved spatially localized spectroscopy (JPRESS) to …

Adiabatic multiband inversion for simultaneous acquisition of 1 H MR spectra from two voxels in-vivo at very short echo times

LT Riemann, CS Aigner, R Brühl, S Aydin… - Proceedings of the …, 2020 - archive.ismrm.org
In this work, a novel 1 H MR spectroscopy sequence is proposed that provides the
advantages of single voxel spectroscopy, such as high spectral bandwidth, a narrower point …

Fourier-based decomposition approach for simultaneous acquisition of 1 H spectra from two voxels in vivo at short echo times

LT Riemann, CS Aigner, R Mekle… - Proceedings of the …, 2021 - archive.ismrm.org
In this work, a Fourier-based technique for 1 H MR spectroscopy based on split-slice-
GRAPPA is introduced to decompose simultaneously acquired dual-voxel data. In contrast …

Optimized Crusher Design for Magnetic Resonance Spectroscopy

K Landheer, C Juchem - 2017 - archive.ismrm.org
Modern magnetic resonance spectroscopic (MRS) pulse sequences frequently overlook the
issue of unwanted coherence pathways. A novel and robust algorithm which only requires …

Impact of the B 0 and B-adjustments on the in vivo metabolite quantification accuracy of simultaneous 2voxel H brain MRS at 7T

LT Riemann, CS Aigner, R Mekle, S Schmitter… - archive.ismrm.org
For simultaneous multi-voxel spectroscopy (sMVS), it is necessary to optimize the B 0
shimming and the B 1+ adjustment simultaneously for two voxels. The impact of these …

[图书][B] Technical Developments of in vivo Proton Magnetic Resonance Spectroscopy

K Landheer - 2017 - search.proquest.com
Proton magnetic resonance spectroscopy (MRS) is a powerful non-invasive technique to
probe the biochemistry of the brain and body. Because MRS signals are collected from …