Quantitative susceptibility mapping
In Vivo 7T MR Quantitative Susceptibility Mapping Reveals Opposite Susceptibility Contrast between Cortical and White Matter Lesions in Multiple Sclerosis
... with susceptibility-weighted contrasts such as R2*/T2* mapping and quantitative susceptibility mapping (QSM) may have the po- tential to discriminate features of cortical and WM ...
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Basal Ganglia Iron in Patients with Multiple Sclerosis Measured with 7T Quantitative Susceptibility Mapping Correlates with Inhibitory Control
... MATERIALS AND METHODS: Twenty-nine patients with MS underwent a battery of neuropsychological tests including the Flanker and Stroop tasks. 7T MR imaging included 3D gradient-echo and single-echo multishot spin-echo EPI. ...
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Quantitative Susceptibility Mapping of Time Dependent Susceptibility Changes in Multiple Sclerosis Lesions
... . Quantitative susceptibility mapping rim ⫹ lesions were larger than rim ⫺ lesions with gadolinium enhancement (P ⬍ ...lesions, susceptibility increased sharply after enhancement to a peak ...
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A comparison of phase imaging and quantitative susceptibility mapping in the imaging of multiple sclerosis lesions at ultrahigh field
... by quantitative susceptibility mapping (QSM) [17–19], which produces maps of the local variations in the tissue susceptibility that are responsible for the measured phase ...magnetic ...
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Usefulness of Quantitative Susceptibility Mapping for the Diagnosis of Parkinson Disease
... The quantitative susceptibility mapping values and R2* values of the substantia nigra were significantly higher in patients with Parkinson disease (P ⬍ ...for quantitative susceptibility ...
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Quantitative Susceptibility Mapping of the Thalamus: Relationships with Thalamic Volume, Total Gray Matter Volume, and T2 Lesion Burden
... included quantitative susceptibility mapping to measure iron concentration and a 3D T1 echo-spoiled gradient-echo sequence to obtain thalamic ...the quantitative susceptibility map to ...
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Functional quantitative susceptibility mapping (fQSM)
... and susceptibility changes in the cortex have been assigned to blood volume and oxygenation changes in pial and intracortical veins (Bianciardi et ...of quantitative susceptibility mapping ...
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Lateral Asymmetry and Spatial Difference of Iron Deposition in the Substantia Nigra of Patients with Parkinson Disease Measured with Quantitative Susceptibility Mapping
... reconstructed quantitative susceptibility mapping, we measured the susceptibility values in the anterior, middle, and posterior parts of the substantia nigra, the whole substantia nigra, and ...
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Brain Injury Lesion Imaging Using Preconditioned Quantitative Susceptibility Mapping without Skull Stripping
... imaging susceptibility-based methods are more sensitive than CT for detecting cerebral microhemorrhage, but methods other than quantitative susceptibility mapping provide results that vary ...
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Interrogating Tissue Perfusion And Oxygenation Using Dynamic Magnetic Resonance Imaging And Quantitative Susceptibility Mapping
... Our initial in vivo results demonstrate the feasibility of using susceptibility for Gd quantification in perfusion mapping. The CBF and CBF maps show good gray and white matter contrast. The perfusion ...
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Magnetic Susceptibility from Quantitative Susceptibility Mapping Can Differentiate New Enhancing from Nonenhancing Multiple Sclerosis Lesions without Gadolinium Injection
... One neuroradiologist (Y.Z., with 4 years of experience) drew the areas of each localized lesion on the T2WI while blinded to the Gd-enhancement classification. White matter regions without abnormal signal on T1WI and ...
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Quantitative Susceptibility Mapping Suggests Altered Brain Iron in Premanifest Huntington Disease
... magnetic susceptibility, which could be masked by multiple confounding ...the susceptibility values of sur- rounding tissue and the position of the head) 22 ; thus, this ...
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Quantitative Susceptibility Mapping after Sports Related Concussion
... The stability analysis shown in Fig 1 illustrates the practical limitations of QSM in reliably detecting small changes in tissue susceptibility. This expected result shows that QSM estimates will predominantly be ...
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Quantitative Susceptibility Mapping in Cerebral Cavernous Malformations: Clinical Correlations
... Limitations of this study include lesional iron content, which may be underestimated due to partial volume effects because other susceptibility sources such as diamagnetic myelin were not accounted for. This study ...
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Quantitative Susceptibility Mapping of Human Brain at 3T: A Multisite Reproducibility Study
... of susceptibility maps from each subject were registered in SPM8 software ...mean susceptibility values in each re- gion of ...the susceptibility values was then calculated with data from both a ...
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Hematocrit Measurement with R2* and Quantitative Susceptibility Mapping in Postmortem Brain
... and susceptibility is strong and significant in the postmortem subjects, the number of postmortem subjects is ...to quantitative MR imaging values. The R2* mapping method in this study did not use ...
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Fine-mapping of the 1p11.2 breast cancer susceptibility locus
... of Susceptibility genome-wide association study (GWAS) originally identified a single nucleotide polymorphism (SNP) rs11249433 at ...cancer susceptibility locus confirms this region to be limited to risk to ...
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Mapping Landslides Susceptibility in a Traditional Northern Nigerian City
... landslide susceptibility rating coincide with lithological boundaries within the study ...landslide susceptibility rating is high could aggravate the incidence of landslide within the study ...
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Genetic mapping of quantitative trait loci in crops
... [34] is becoming more and more popular, as it successfully corrects for population structure and family relatedness [2]. However, with its requirement of large sample size and high marker density (~ 1 million markers) to ...
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Interval mapping of multiple quantitative trait loci.
... Starting from the single Q T L model using all selected markers, which markers still may be dropped (those markers previously explained the effect of the putative QTL) and[r] ...
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