NDLI: Testing the Quality of Magnetic Gradient Fields for Studying Self-Diffusion Processes in Biological Specimens by Magnetic Resonance Methods

Content Provider	IEEE Xplore Digital Library
Author	Gescheidtova, E. Kubasek, R. Bartusek, K.
Copyright Year	2006
Description	Author affiliation: Fac. of Electr. Eng. & Commun., Brno Univ. of Technol. (Gescheidtova, E.; Kubasek, R.)
Abstract	Imaging techniques based on the principle of nuclear magnetic resonance (MRI) can be used in the study of molecular transport phenomena in biological systems such as self-diffusion processes. The precision of determining the diffusion constants depends on generating the gradient pulse with high precision. For the purpose of determining the characteristics of time behaviour of gradient pulses a simple measuring method was developed and experimentally tested on a 4.7 T tomograph. The method is based on the principle of measuring the instantaneous frequency of MR signal in the presence of gradient pulse after the excitation of a thin defined layer of the examined specimen placed outside the gradient field centre. Using the above method, errors were found in the amplitude and time integral of generated gradient fields and in determining the diffusion constants for biological tissues
Starting Page	888
Ending Page	891
File Size	3497073
Page Count	4
File Format	PDF
ISBN	1424403871
DOI	10.1109/APCCAS.2006.342184
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic resonance Automatic testing Pulse measurements Magnetic resonance imaging Magnetic field measurement Nuclear magnetic resonance Biological systems Nuclear power generation Pulse generation Time measurement
Content Type	Text
Resource Type	Article

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