منابع مشابه
Shimming and MRSI
INTRODUCTION With the advent of high field 3T and ultrahigh field 7T MR systems, significant improvements in a variety of brain imaging modalities were anticipated. Although improvements in SNR have been demonstrated at 3T and 7T [1, 2], limitations due to increased static field (B0) inhomogeneity have also been noted. One modality particularly affected by poor B0 homogeneity is magnetic resona...
متن کاملMRSI data of patients with prostate cancer
Objective To evaluate quantitatively 3D proton MR spectroscopic imaging (3D H MRSI) data of the prostate in patients with known prostate cancer using anatomical knowledge, compared with a single–voxel–spectra evaluation by blinded experts and automated processing methods. Material and Methods: MRSI data of 10 patients with histologically proven prostate adenocarcinoma, scheduled either for pros...
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This review focuses on the current literature directed towards the brain metabolite findings in Cerebral Autosomal-Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL) disease using magnetic resonance spectroscopy (MRS) and magnetic resonance spectroscopic imaging (MRSI). Using search terms "metabolites", "spectroscopy", and "CADASIL", six articles were found on Pub...
متن کاملERETIC based in vivo H MRSI quantification
Introduction Quantification of metabolite concentrations from spectroscopic images has been performed by a variety of approaches: Absolute quantification based on internal water referencing [1] is the current method of choice. It accounts for B1 variations across the field of view but imposes problems when assessing diseases that lead to alteration of tissue water concentration [2] and relaxati...
متن کاملA novel parallel sparse MRSI reconstruction scheme
INTRODUCTION Low SNR of proton magnetic resonance spectroscopic imaging (MRSI) in vivo data for a small voxel size (e.g., 0.4cc) necessitates multiple-average acquisition that leads to a long scan time. This issue is even more pronounced when one attempts to acquire J-resolved spectroscopic data using multi-echo acquisition [3] in order to resolve metabolite concentrations such as glutamate and...
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ژورنال
عنوان ژورنال: Japanese Journal of Magnetic Resonance in Medicine
سال: 2021
ISSN: 0914-9457,2434-0499
DOI: 10.2463/jjmrm.2020-1718