Testing the quality of magnetic gradient fields for studying self-diffusion processes in biological specimens by magnetic resonance methods

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F06%3APU63687" target="_blank" >RIV/00216305:26220/06:PU63687 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Testing the quality of magnetic gradient fields for studying self-diffusion processes in biological specimens by magnetic resonance methods

Original language description

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 foundin the amplitude and time integral of generated gradient fields and in determining the diffusion constants for biological tissues.

Czech name

Testování kvality gradientního pole pro měření difůze metodamy Magnetické resonance

Czech description

článek se zaobírá měřenim a posuzováním kvality gradientního pole v MR tomografii pro potřeby měření difůze. Zkoumá chybu meření difůze v závislosti na integrální chybě genetovaného gradientu.

Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/KJB208130603" target="_blank" >KJB208130603: Measurement and simulation of material susceptibility and conductivity influences in MR tomography</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

APCCAS06 proceeding

ISBN

1-4244-0387-1

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

1-4

Publisher name

IEEE

Place of publication

Singapore

Event location

Singapore

Event date

Dec 4, 2006

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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