Optimum Voxel Volume for Maximizing Contrast-to-Noise Ratio in BOLD Functional MRI
نویسندگان
چکیده
منابع مشابه
Optimum Voxel Volume for Maximizing Contrast-to-Noise Ratio in BOLD Functional MRI
Recent studies suggest that physiological noise, which determines the SNR of the fMRI time course at commonly used spatial resolutions, is largely spatially coherent. It is theoretically shown that the ratio of such a spatially coherent physiological to thermal noise determines the optimum voxel volume for maximizing BOLD CNR, relatively independent of the size of activation.
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ژورنال
عنوان ژورنال: The Open Magnetic Resonance Journal
سال: 2008
ISSN: 1874-7698
DOI: 10.2174/1874769800801010054