A comparison on the magnitude and complex-valued methods to detect the brain activation, application to functional MRI
Publish place: 2rd International Conference on Soft Computing
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CSCG02_041
تاریخ نمایه سازی: 7 اسفند 1396
Abstract:
In functional MRI studies, the significant brain activation is determined using the magnitude-only time series framework after the image reconstruction. Although this method is very popular, the information of the phase part is ignored. Most recently, a novel strategy for determining the significant brain activation is proposed which considers the magnitude and phase parts of the data simultaneously. This approach affects the quality of reconstructed image and the power of the statistical tests. In this study, the significant brain activation achieved using the complex- and magnitude-valued approaches were evaluated
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Authors
Soodeh Moallemian
Neuroimaging and Analysis Group, Imam-Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
Seyed Salman Zakariaee
Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.