Reproducibility of quantitative susceptibility mapping in lumbar vertebra
نویسندگان
چکیده
منابع مشابه
Diagnosis of patients with Parkinson's disease using quantitative susceptibility mapping
Introduction: Parkinson'sdisease isassociated withirondeposition in the brain. The T2-weighted imaging, T2* mapping, R2 mapping and Quantitative Susceptibility Mapping (QSM) are three common methods to evaluating the iron deposition in brain. Among three methods the QSM is more sensitive than others. Few studies have been used QSM for evaluating the iron deposition in the basa...
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............................................................................................................................. iv Acknowledgements ........................................................................................................... vi List of Figures .................................................................................................................... ix List...
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BACKGROUND AND PURPOSE Quantitative susceptibility mapping of the human brain has demonstrated strong potential in examining iron deposition, which may help in investigating possible brain pathology. This study assesses the reproducibility of quantitative susceptibility mapping across different imaging sites. MATERIALS AND METHODS In this study, the susceptibility values of 5 regions of inter...
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Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) is a powerful technique, typically based on the statistical analysis of the magnitude component of the complex time-series. Here, we additionally interrogated the phase data of the fMRI time-series and used quantitative susceptibility mapping (QSM) in order to investigate the potential of functional QSM (fQSM)...
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The inverse problem of QSM is to recover the susceptibility distribution of the human body from the measured local field that is expressed by the convolution of the susceptibility distribution with the magnetic field generated by a unit dipole. However, it is ill-posed due to the presence of zeros at a cone in the Fourier representation of the unit dipole kernel. Due to this ill-posedness, the ...
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ژورنال
عنوان ژورنال: Quantitative Imaging in Medicine and Surgery
سال: 2019
ISSN: 2223-4292,2223-4306
DOI: 10.21037/qims.2019.04.12