Foundations of MRI phase imaging and processing for Quantitative Susceptibility Mapping (QSM)

F Schweser, A Deistung, JR Reichenbach - Zeitschrift für medizinische …, 2016 - Elsevier
Abstract Quantitative Susceptibility Mapping (QSM) is a novel MRI based technique that
relies on estimates of the magnetic field distribution in the tissue under examination. Several …

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 …

Whole brain susceptibility mapping using compressed sensing

B Wu, W Li, A Guidon, C Liu - Magnetic resonance in medicine, 2012 - Wiley Online Library
The derivation of susceptibility from image phase is hampered by the ill‐conditioned filter
inversion in certain k‐space regions. In this article, compressed sensing is used to …

Nonlinear regularization for per voxel estimation of magnetic susceptibility distributions from MRI field maps

B Kressler, L De Rochefort, T Liu… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
Magnetic susceptibility is an important physical property of tissues, and can be used as a
contrast mechanism in magnetic resonance imaging (MRI). Recently, targeting contrast …

Toward online reconstruction of quantitative susceptibility maps: superfast dipole inversion

F Schweser, A Deistung, K Sommer… - Magnetic resonance …, 2013 - Wiley Online Library
Magnetic susceptibility is an intrinsic tissue property that recently became measureable in
vivo by a magnetic‐resonance based technique called quantitative susceptibility mapping …

Voxel‐based quantitative susceptibility mapping in Parkinson's disease with mild cognitive impairment

Y Uchida, H Kan, K Sakurai, N Arai, D Kato… - Movement …, 2019 - Wiley Online Library
Objective Brain iron accumulation has been proposed as one of the pathomechanisms in
Parkinson's disease (PD). This study aimed to examine the whole‐brain pattern of iron …

Fast and accurate phase-unwrapping algorithm based on the transport of intensity equation

J Martinez-Carranza, K Falaggis, T Kozacki - Applied Optics, 2017 - opg.optica.org
The phase information of a complex field is routinely obtained using coherent measurement
techniques as, eg, interferometry or holography. The obtained measurement result is subject …

Phase unwrapping in 4D MR flow with a 4D single‐step laplacian algorithm

M Loecher, E Schrauben, KM Johnson… - Journal of Magnetic …, 2016 - Wiley Online Library
Purpose To introduce and demonstrate a method for unwrapping 4D flow data by utilizing
continuity constraints in all four available dimensions. Materials and Methods A Laplacian …

Magnetic susceptibility associates with dopaminergic deficits and cognition in Parkinson's disease

Y Uchida, H Kan, K Sakurai, S Inui… - Movement …, 2020 - Wiley Online Library
Objective The objective of this study was to assess the relationship between nigrostriatal
magnetic susceptibility and dopamine transporter abnormality and their associations with …

Iron leakage owing to blood–brain barrier disruption in small vessel disease CADASIL

Y Uchida, H Kan, K Sakurai, N Arai, S Inui… - Neurology, 2020 - AAN Enterprises
Objective To assess the relationship among iron accumulation, blood–brain barrier (BBB)
damage, and cognitive function in patients with cerebral autosomal dominant arteriopathy …