• DocumentCode
    2193985
  • Title

    Phantom studies investigating extravascular density imaging for partial volume correction of 3D PET 18FDG studies

  • Author

    Wassenaar, Richard W. ; Beanlands, Rob S B ; DeKemp, Robert A.

  • Author_Institution
    Carleton Univ., Ottawa, Ont., Canada
  • Volume
    2
  • fYear
    2002
  • fDate
    10-16 Nov. 2002
  • Firstpage
    821
  • Abstract
    Limited scanner resolution and cardiac motion contribute to partial volume (PV) averaging of cardiac PET images. An extravascular (EV) density image, created from the subtraction of a blood pool scan from a transmission image, has been used to correct for PV averaging in H215O studies using 2D imaging but not with 3D imaging of other tracers such as 18FDG. A cardiac phantom emulating the left ventricle was used to characterize the method for use in 3D PET studies. Measurement of the average myocardial activity showed PV losses of 32% below the true activity (p<0.001).
  • Keywords
    cardiology; positron emission tomography; 2D imaging; 3D PET 18FDG studies; average myocardial activity; cardiac motion; cardiac phantom; extravascular density imaging; left ventricle; limited scanner resolution; partial volume correction; Blood; Data acquisition; Heart; Image resolution; Imaging phantoms; Loss measurement; Myocardium; Plastics; Positron emission tomography; Spatial resolution;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Nuclear Science Symposium Conference Record, 2002 IEEE
  • Print_ISBN
    0-7803-7636-6
  • Type

    conf

  • DOI
    10.1109/NSSMIC.2002.1239451
  • Filename
    1239451
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2193985