Work

Errors of fourier chemical-shift imaging and their corrections

Year: 1991

Type: article

Abstract: From a finite and discrete Fourier transform point of view, we discuss the sources of localization errors in Fourier chemical-shift imaging, and demonstrate them explicitly by computer simulations for simple cases. Errors arise from intravoxel dephasing and the intravoxel asymmetry. The spectral leakage due to intravoxel dephasing is roughly 6–8% from one voxel to one of its nearest neighbors. Neighbors further away are influenced less significantly. The loss of localization due to intravoxel asymmetry effect is also severe. Fortunately, these errors can be corrected under certain conditions. The method for correcting the errors by postprocessing the data is described.

Source: Journal of Magnetic Resonance (1969)

DOI: 10.1016/0022-2364(91)90247-q

Authors: Zhiyue Wang, Lizann Bolinger, V.Harihara Subramanian, John S Leigh

Institution: University of Pennsylvania

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: hybrid

Funders: James S. McDonnell Foundation, National Institutes of Health

OpenAlex ID: W1977086190

FWCI: 4.298

Cites: 3

Cited by: 34

Related to: 10