Quantitative magnetic resonance imaging towards clinical application in multiple sclerosis

C Granziera, J Wuerfel, F Barkhof, M Calabrese… - Brain, 2021 - academic.oup.com
Quantitative MRI provides biophysical measures of the microstructural integrity of the CNS,
which can be compared across CNS regions, patients, and centres. In patients with multiple …

[HTML][HTML] Variability and standardization of quantitative imaging: monoparametric to multiparametric quantification, radiomics, and artificial intelligence

A Hagiwara, S Fujita, Y Ohno, S Aoki - Investigative radiology, 2020 - journals.lww.com
Radiological images have been assessed qualitatively in most clinical settings by the expert
eyes of radiologists and other clinicians. On the other hand, quantification of radiological …

Advantages of using both voxel-and surface-based morphometry in cortical morphology analysis: a review of various applications

M Goto, O Abe, A Hagiwara, S Fujita… - Magnetic resonance in …, 2022 - jstage.jst.go.jp
In addition, we introduce two other recent methods as future directions for estimating cortical
morphological changes: a multi-modal parcellation method using structural and functional …

[HTML][HTML] Myelin Measurement: Comparison Between Simultaneous Tissue Relaxometry, Magnetization Transfer Saturation Index, and T1w/T2w Ratio Methods

A Hagiwara, M Hori, K Kamagata, M Warntjes… - Scientific reports, 2018 - nature.com
Magnetization transfer (MT) imaging has been widely used for estimating myelin content in
the brain. Recently, two other approaches, namely simultaneous tissue relaxometry of R1 …

[HTML][HTML] Multiparametric quantitative MRI in neurological diseases

A Seiler, U Nöth, P Hok, A Reiländer… - Frontiers in …, 2021 - frontiersin.org
Magnetic resonance imaging (MRI) is the gold standard imaging technique for diagnosis
and monitoring of many neurological diseases. However, the application of conventional …

[HTML][HTML] Linearity, bias, intrascanner repeatability, and interscanner reproducibility of quantitative multidynamic multiecho sequence for rapid simultaneous …

A Hagiwara, M Hori, J Cohen-Adad… - Investigative …, 2019 - journals.lww.com
Objectives The aim of this study was to evaluate the linearity, bias, intrascanner
repeatability, and interscanner reproducibility of quantitative values derived from a …

[HTML][HTML] Three-dimensional high-resolution simultaneous quantitative mapping of the whole brain with 3D-QALAS: an accuracy and repeatability study

S Fujita, A Hagiwara, M Hori, M Warntjes… - Magnetic resonance …, 2019 - Elsevier
Background Previous methods for the quantification of brain tissue properties by magnetic
resonance imaging were mainly based on two-dimensional acquisitions and were thus …

STrategically Acquired Gradient Echo (STAGE) imaging, part III: Technical advances and clinical applications of a rapid multi-contrast multi-parametric brain imaging …

EM Haacke, Y Chen, D Utriainen, B Wu, Y Wang… - Magnetic resonance …, 2020 - Elsevier
One major thrust in radiology today is image standardization with a focus on rapidly
acquired quantitative multi-contrast information. This is critical for multi-center trials, for the …

Improving the quality of synthetic FLAIR images with deep learning using a conditional generative adversarial network for pixel-by-pixel image translation

A Hagiwara, Y Otsuka, M Hori… - American journal …, 2019 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Synthetic FLAIR images are of lower quality than
conventional FLAIR images. Here, we aimed to improve the synthetic FLAIR image quality …

Synthesize high-quality multi-contrast magnetic resonance imaging from multi-echo acquisition using multi-task deep generative model

G Wang, E Gong, S Banerjee, D Martin… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
Multi-echo saturation recovery sequence can provide redundant information to synthesize
multi-contrast magnetic resonance imaging. Traditional synthesis methods, such as GE's …