Effect of respiratory hyperoxic challenge on magnetic susceptibility in human brain assessed by quantitative susceptibility mapping (QSM)

2015 ◽  
Vol 28 (12) ◽  
pp. 1688-1696 ◽  
Author(s):  
Pinar Senay Özbay ◽  
Cristina Rossi ◽  
Roman Kocian ◽  
Manuel Redle ◽  
Andreas Boss ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Human Brain ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping

IC-P-145: EX-VIVO QUANTITATIVE SUSCEPTIBILITY MAPPING (QSM) IN A COMMUNITY COHORT REVEALS LINK BETWEEN MAGNETIC SUSCEPTIBILITY AND ALZHEIMER'S PATHOLOGY

2014 ◽  
Vol 10 ◽  
pp. P83-P84
Author(s):  
Arnold Moya Evia ◽  
Konstantinos Arfanakis ◽  
David Bennett ◽  
Julie Schneider ◽  
Aikaterini Kotrotsou ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Ex Vivo ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping ◽  
Alzheimer’S Pathology

Quantitative susceptibility mapping for investigating subtle susceptibility variations in the human brain

NeuroImage ◽  
2012 ◽  
Vol 62 (3) ◽  
pp. 2083-2100 ◽  
Author(s):  
Ferdinand Schweser ◽  
Karsten Sommer ◽  
Andreas Deistung ◽  
Jürgen Rainer Reichenbach
Keyword(s):  
Human Brain ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping

Investigating Optimal Echo Times for Quantitative Susceptibility Mapping of Basal Ganglia Nuclei in the Healthy Brain

2020 ◽  
Vol 16 (8) ◽  
pp. 991-996
Author(s):  
Wenping Fan ◽  
Xue Wang ◽  
Xingwen Zhang ◽  
Mengqi Liu ◽  
Qinglin Meng ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Clinical Practice ◽  
Standard Deviation ◽  
Basal Ganglia ◽  
Caudate Nucleus ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping ◽  
Significant Difference ◽  
The Mean ◽  
Echo Time

Background: Quantitative susceptibility mapping (QSM) technique had been used to measure the magnetic susceptibility of brain tissue in clinical practice. However, QSM presented echo-time (TE) dependence, and an appropriate number of echo-times (nTEs) for QSM became more important to obtain the reliable susceptibility value. Objective: The aim of the study was to explore the optimal nTEs for quantitative susceptibility mapping (QSM) measurements of basal ganglia nuclei in the healthy brain. Methods: 3D multi-echo enhanced gradient recalled echo T2 star weighted angiography (ESWAN) sequence was acquired on a 3.0T MR scanner for QSM analysis. Regions of interests (ROIs) were drawn along the margin of the head of the caudate nucleus (HCN), putamen (Pu) and globus pallidus (GP). The mean susceptibility value and standard deviation of the ROIs were derived from the pixels within each region. Results: CV analysis demonstrated that TE6, TE8 and TE14 ESWAN sequences presented consistent lower CV value (<1) for QSM measure of HCN, Pu and GP. ANOVA identified that susceptibility value showed no significant difference between TE6 and TE8 in HCN, Pu and GP (P > 0.05). ICC analysis demonstrated that the susceptibility value of TE6-TE8 had the highest ICC value as compared with TE6-TE14 and TE8-TE14 in HCN, Pu and GP. Combined with the timeefficiency of MRI scanning, TE6 sequence could not only provide the reliable QSM measurement but also short imaging time. Conclusions: The current study identified that the optimal nTEs of ESWAN were 6 TEs (2.9ms ~ 80.9ms) for QSM measurement of basal ganglia nuclei in the healthy brain.

scholarly journals Ex-vivo quantitative susceptibility mapping of human brain hemispheres

PLoS ONE ◽  
2017 ◽  
Vol 12 (12) ◽  
pp. e0188395 ◽  
Author(s):  
Arnold M. Evia ◽  
Aikaterini Kotrotsou ◽  
Ashish A. Tamhane ◽  
Robert J. Dawe ◽  
Alifiya Kapasi ◽  
...  
Keyword(s):  
Human Brain ◽  
Ex Vivo ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping ◽  
Brain Hemispheres

EX VIVO QUANTITATIVE SUSCEPTIBILITY MAPPING (QSM) IN A COMMUNITY COHORT REVEALS LINK BETWEEN MAGNETIC SUSCEPTIBILITY AND ALZHEIMER'S PATHOLOGY

2014 ◽  
Vol 10 ◽  
pp. P549-P550
Author(s):  
Arnold Moya Evia ◽  
Konstantinos Arfanakis ◽  
David Bennett ◽  
Julie Schneider ◽  
Aikaterini Kotrotsou ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Ex Vivo ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping ◽  
Alzheimer’S Pathology
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