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K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F17%3A00108298" target="_blank" >RIV/00216224:14740/17:00108298 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.23919/MEASUREMENT.2017.7983570" target="_blank" >http://dx.doi.org/10.23919/MEASUREMENT.2017.7983570</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.23919/MEASUREMENT.2017.7983570" target="_blank" >10.23919/MEASUREMENT.2017.7983570</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging

  • Original language description

    Ultrashort echo time imaging (UTE) is often the method of choice for measurement of short-lived T-2 signals from biological tissues. The UTE acquisition is based on radial or spiral sampling schemes which, in general, are sensitive to small discrepancies between prescribed and actual trajectories. Such errors are usually observed as image quality degradation, visible as ghosting or intensity variation. This is even more serious for quantitative applications when intensity variation can cause serious bias in the estimation of measured parameters such as proton density (PD). Here we investigate such behavior of UTE acquisition and demonstrate that proper calibration of the gradient channels could minimize these type of the errors. Phantom experiments proved the efficiency of the application trajectory calibration approach.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

    <a href="/en/project/GA15-12607S" target="_blank" >GA15-12607S: Design and optimization of ultra-short echo-time sequence for reliable detection of myelin content in the human brain by magnetic resonance imaging.</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    2017 11TH INTERNATIONAL CONFERENCE ON MEASUREMENT

  • ISBN

    9788097262914

  • ISSN

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

    197-200

  • Publisher name

    IEEE

  • Place of publication

    NEW YORK

  • Event location

    Smolenice, SLOVAKIA

  • Event date

    May 29, 2017

  • Type of event by nationality

    CST - Celostátní akce

  • UT code for WoS article

    000428658900046