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KUBÁSEK, R. GESCHEIDTOVÁ, E. BARTUŠEK, K.
Original Title
Testing the quality of magnetic gradient fields for studying self-diffusion processes in biological specimens by magnetic resonance methods
Type
conference paper
Language
English
Original 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.
Keywords
MR, NMR, diffusion
Authors
KUBÁSEK, R.; GESCHEIDTOVÁ, E.; BARTUŠEK, K.
RIV year
2006
Released
1. 12. 2006
Publisher
IEEE
Location
Singapore
ISBN
1-4244-0387-1
Book
APCCAS06 proceeding
Pages from
1
Pages to
4
Pages count
URL
http://www.apccas.org
BibTex
@inproceedings{BUT21631, author="Radek {Kubásek} and Eva {Gescheidtová} and Karel {Bartušek}", title="Testing the quality of magnetic gradient fields for studying self-diffusion processes in biological specimens by magnetic resonance methods", booktitle="APCCAS06 proceeding", year="2006", pages="4", publisher="IEEE", address="Singapore", isbn="1-4244-0387-1", url="http://www.apccas.org" }