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 …

Quantitative susceptibility mapping as an imaging biomarker for Alzheimer's disease: The expectations and limitations

Y Uchida, H Kan, K Sakurai, K Oishi… - Frontiers in …, 2022 - frontiersin.org
Alzheimer's disease (AD) is the most common type of dementia and a distressing diagnosis
for individuals and caregivers. Researchers and clinical trials have mainly focused on β …

Linearity, bias, intrascanner repeatability, and interscanner reproducibility of quantitative multidynamic multiecho sequence for rapid simultaneous relaxometry at 3 T …

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 …

In vivo T1 and T2 relaxation time maps of brain tissue, skeletal muscle, and lipid measured in healthy volunteers at 50 mT

T O'Reilly, AG Webb - Magnetic Resonance in Medicine, 2022 - Wiley Online Library
Purpose Low‐field (B0< 0.1 T) MRI has generated much interest as a means of increased
accessibility via reduced cost and improved portability compared to conventional clinical …

[HTML][HTML] MTE-NODDI: Multi-TE NODDI for disentangling non-T2-weighted signal fractions from compartment-specific T2 relaxation times

T Gong, Q Tong, H He, Y Sun, J Zhong, H Zhang - Neuroimage, 2020 - Elsevier
Neurite orientation dispersion and density imaging (NODDI) has become a popular diffusion
MRI technique for investigating microstructural alternations during brain development …

Accelerated isotropic multiparametric imaging by high spatial resolution 3D-QALAS with compressed sensing: a phantom, volunteer, and patient study

S Fujita, A Hagiwara, N Takei, KP Hwang… - Investigative …, 2021 - journals.lww.com
Objectives The aims of this study were to develop an accelerated multiparametric magnetic
resonance imaging method based on 3D-quantification using an interleaved Look-Locker …

Review of synthetic MRI in pediatric brains: Basic principle of MR quantification, its features, clinical applications, and limitations

C Andica, A Hagiwara, M Hori, K Kamagata… - Journal of …, 2019 - Elsevier
Quantitative magnetic resonance imaging (MRI) with multislice, multi-echo, and multi-delay
acquisition enables simultaneous quantification of R 1 and R 2 relaxation rates, proton …

[HTML][HTML] Age-related changes in relaxation times, proton density, myelin, and tissue volumes in adult brain analyzed by 2-dimensional quantitative synthetic magnetic …

A Hagiwara, K Fujimoto, K Kamagata… - Investigative …, 2021 - journals.lww.com
Objectives Quantitative synthetic magnetic resonance imaging (MRI) enables the
determination of fundamental tissue properties, namely, T1 and T2 relaxation times and …

3D quantitative synthetic MRI‐derived cortical thickness and subcortical brain volumes: Scan–rescan repeatability and comparison with conventional T1‐weighted …

S Fujita, A Hagiwara, M Hori, M Warntjes… - Journal of Magnetic …, 2019 - Wiley Online Library
Background Previous quantitative synthetic MRI of the brain has been solely performed in
2D. Purpose To evaluate the feasibility of the recently developed sequence 3D‐QALAS for …

Diagnostic performance of synthetic relaxometry for predicting neurodevelopmental outcomes in premature infants: a feasibility study

JS Kim, HH Cho, JY Shin, SH Park, YS Min, B Park… - European …, 2023 - Springer
Objectives To investigate the predictability of synthetic relaxometry for neurodevelopmental
outcomes in premature infants and to evaluate whether a combination of relaxation times …