Results 11 to 20 of about 4,607 (203)

Feasibility of quantitative susceptibility mapping (QSM) of the human kidney. [PDF]

MAGMA, 2021
Abstract Objective To evaluate the feasibility of in-vivo quantitative susceptibility mapping (QSM) of the human kidney. Methods An axial single-breath-hold 3D multi-echo sequence (acquisition time 33 s) was completed on a 3 T-MRI-scanner (Magnetom Prisma, Siemens ...
Bechler E, Stabinska J, Thiel T, Jasse J, Zukovs R, Valentin B, Wittsack HJ, Ljimani A.   +7 more
europepmc   +4 more sources

Quantitative susceptibility mapping (QSM) and R2^* of silent cerebral infarcts in sickle cell anemia. [PDF]

Front Neurol, 2022
Silent cerebral infarction (SCI) is the most commonly reported radiological abnormality in patients with sickle cell anemia (SCA) and is associated with future clinical stroke risk. To date, there have been few histological and quantitative MRI studies of SCI and multiple radiological definitions exist.
Murdoch R, Stotesbury H, Kawadler JM, Saunders DE, Kirkham FJ, Shmueli K.   +5 more
europepmc   +5 more sources

Nonlinear dipole inversion (NDI) enables robust quantitative susceptibility mapping (QSM). [PDF]

NMR Biomed, 2020
High‐quality Quantitative Susceptibility Mapping (QSM) with Nonlinear Dipole Inversion (NDI) is developed with pre‐determined regularization while matching the image quality of state‐of‐the‐art reconstruction techniques and avoiding over‐smoothing that these techniques often suffer from.
Polak D, Chatnuntawech I, Yoon J, Iyer SS, Milovic C, Lee J, Bachert P, Adalsteinsson E, Setsompop K, Bilgic B.   +9 more
europepmc   +6 more sources

Correction to: Feasibility of quantitative susceptibility mapping (QSM) of the human kidney. [PDF]

MAGMA, 2022
Bechler E, Stabinska J, Thiel T, Jasse J, Zukovs R, Valentin B, Wittsack H, Ljimani A.   +7 more
europepmc   +2 more sources

Systematic Review: Quantitative Susceptibility Mapping (QSM) of Brain Iron Profile in Neurodegenerative Diseases. [PDF]

Front Neurosci, 2021
Iron has been increasingly implicated in the pathology of neurodegenerative diseases. In the past decade, development of the new magnetic resonance imaging technique, quantitative susceptibility mapping (QSM), has enabled for the more comprehensive investigation of iron distribution in the brain.
Ravanfar P, Loi SM, Syeda WT, Van Rheenen TE, Bush AI, Desmond P, Cropley VL, Lane DJR, Opazo CM, Moffat BA, Velakoulis D, Pantelis C.   +11 more
europepmc   +6 more sources

Quantitative susceptibility mapping (QSM) evaluation of infantile neuroaxonal dystrophy. [PDF]

BJR Case Rep, 2019
We present the first case of twins with infantile neuroaxonal dystrophy evaluating brain iron deposition using quantitative susceptibility mapping (QSM). A 6-year-old boy who was normal at birth had psychomotor regression and hypotonia from 2-years-old.
Fujiwara T, Watanabe Y, Tanaka H, Takahashi H, Nabatame S, Yi W, Tomiyama N.   +6 more
europepmc   +3 more sources

Cardiac quantitative susceptibility mapping (QSM) for heart chamber oxygenation. [PDF]

Magn Reson Med, 2018
PurposeTo demonstrate the feasibility of in vivo quantitative susceptibility mapping (QSM) in cardiac MRI and to show that mixed‐venous oxygen saturation (SvO2) can be measured non‐invasively using QSM.MethodsElectrocardiographic‐gated multi‐echo 2D gradient echo data were collected at 1.5 T from 14 healthy volunteers during successive breath‐holds ...
Wen Y, Nguyen TD, Liu Z, Spincemaille P, Zhou D, Dimov A, Kee Y, Deh K, Kim J, Weinsaft JW, Wang Y.   +10 more
europepmc   +4 more sources

Quantitative susceptibility mapping (QSM) as a means to monitor cerebral hematoma treatment. [PDF]

J Magn Reson Imaging, 2018
BackgroundQuantitative susceptibility mapping (QSM) offers a consistent hemorrhage volume measurement independent of imaging parameters.PurposeTo investigate the magnetic susceptibility of intracerebral hemorrhage (ICH) as a quantitative measurement for monitoring treatment in hematoma patients.Study TypeProspective.PopulationTwenty‐six patients with ...
Zhang Y, Wei H, Sun Y, Cronin MJ, He N, Xu J, Zhou Y, Liu C.   +7 more
europepmc   +6 more sources

An Integrated QSM-Radiomics Nomogram With Clinical and Imaging Markers for Stratifying Cognitive Impairment in Hypertension. [PDF]

CNS Neurosci Ther
This study developed an integrated nomogram combining QSM‐based radiomics, brain iron deposition, white matter hyperintensity, and clinical markers. This model demonstrated superior performance in stratifying hypertensive cognitive impairment compared to traditional single‐parameter models.
Su Y, Liu T, Dong C, Ge L, Li T, Zhang Z, Zhang Y, Li C, Zhao J, Zheng C, Haacke EM, Wu W, Wang L.   +12 more
europepmc   +2 more sources

Repeatability of Susceptibility Source Separation Methods in Human Brain: A Single-Site Study at 3 T. [PDF]

NMR Biomed
Repeatability of three susceptibility source separation algorithms (χ‐Separation, χ‐SepNet, and APART) was investigated using 3‐T scan–rescan data from 21 healthy subjects. The separation methods showed moderate to good repeatability in most brain regions; however, results were greatly influenced by the algorithm used, with better performance achieved ...
Naji N, Seres P, Moran G, Beaulieu C, Wilman AH.   +4 more
europepmc   +2 more sources