QUALITY OF GRADIENT MAGNETIC FIELDS ESTIMATION

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F06%3APU63723" target="_blank" >RIV/00216305:26220/06:PU63723 - 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

QUALITY OF GRADIENT MAGNETIC FIELDS ESTIMATION

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

Určení kvality generovaého gradientního pole

Czech description

Článek se zyobírá metodami pro určení kvality gradientního pole v MR tomografii a spektroskopii. Je použito metody založeném na výpočtu okamžitého kmitočtu snímaného FID signálu

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

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

Name of the periodical

Journal of Electrical Engineering

ISSN

1335-3632

e-ISSN

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Volume of the periodical

2006

Issue of the periodical within the volume

8/S

Country of publishing house

SK - SLOVAKIA

Number of pages

4

Pages from-to

54-57

UT code for WoS article

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EID of the result in the Scopus database

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