• DocumentCode
    1711751
  • Title

    Variations in T1 and T2 due to MRI contrast agents: effect on image contrast

  • Author

    Rao, Navalgund A H K

  • Author_Institution
    Center for Imaging Sci., Rochester Inst. of Technol., NY, USA
  • fYear
    1989
  • Firstpage
    584
  • Abstract
    A model for studying the effect of T1 and T2 variations during image acquisition for a spin-echo pulse sequence is described. The method is based on the understanding that the free induction decay (FID) measurements in magnetic resonance imaging (MRI) are samples of the 2-D Fourier space along k→ trajectories, determined by the gradient fields. Using experimental T1 and T2 data for a contrast agent in rat livers and liver tumors, the effect of temporal variations of T1 and T2 on the final image contrast is illustrated for standard spin-echo imaging pulse sequences
  • Keywords
    biomedical NMR; nuclear spin-lattice relaxation; patient diagnosis; spin-spin relaxation; 2D Fourier space; MRI contrast agents; T1; T2; free induction decay; gradient fields; image acquisition; image contrast; liver tumour; magnetic resonance imaging; medical diagnostic imaging; rat liver; spin-echo imaging pulse sequences; Biomedical imaging; Data acquisition; Encoding; Engineering in medicine and biology; Equations; Liver neoplasms; Magnetic resonance imaging; Pulse measurements; Sequences; Tellurium;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
  • Conference_Location
    Seattle, WA
  • Type

    conf

  • DOI
    10.1109/IEMBS.1989.95994
  • Filename
    95994
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1711751