2005
DOI: 10.1016/j.neuroimage.2005.02.025
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Omission of serial arterial blood sampling in neuroreceptor imaging with independent component analysis

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Cited by 27 publications
(19 citation statements)
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“…Some IDIF methods for neuroreceptor tracers described in the literature estimated only the wholeblood curve from images, and the percentage of unchanged parent was obtained at each time point by correcting the image input using HPLC (high-performance liquid chromatography) analysis from arterial blood sampling (Mourik et al, 2008a(Mourik et al, , 2009, thus diminishing the practical utility of the method. In some other studies, the problem of individual metabolite correction was not taken into account (Litton, 1997;Naganawa et al, 2005b). Naganawa et al (2005b) calculated [ 11 C]-MPDX whole-blood time-activity curve using independent component analysis and suggested that these curves could be used for absolute V T quantification, because the metabolite fraction for this tracer was negligible.…”
Section: The Issue Of Metabolite And/or Plasma Versus Whole-blood Cormentioning
confidence: 99%
“…Some IDIF methods for neuroreceptor tracers described in the literature estimated only the wholeblood curve from images, and the percentage of unchanged parent was obtained at each time point by correcting the image input using HPLC (high-performance liquid chromatography) analysis from arterial blood sampling (Mourik et al, 2008a(Mourik et al, , 2009, thus diminishing the practical utility of the method. In some other studies, the problem of individual metabolite correction was not taken into account (Litton, 1997;Naganawa et al, 2005b). Naganawa et al (2005b) calculated [ 11 C]-MPDX whole-blood time-activity curve using independent component analysis and suggested that these curves could be used for absolute V T quantification, because the metabolite fraction for this tracer was negligible.…”
Section: The Issue Of Metabolite And/or Plasma Versus Whole-blood Cormentioning
confidence: 99%
“…EPICA was found to be a promising tool for non-invasive input extraction in [ 18 F]FDG and [ 11 C]MPDX studies [12]. However, the ICA only deals with relative radioactivity values, while absolute figures are lost in the process.…”
Section: Discussionmentioning
confidence: 99%
“…*Address correspondence to this author at the Institute of Clinical Physiology, National Research Council, 56100 Pisa, Italy; E-mail: patricia.iozzo@ifc.cnr.it Methods to derive arterial time-activity curves (TACs) directly from a PET image have been suggested [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Independent Component Analysis based methods (EPICAextraction of the plasma TAC using Independent Component Analysis) have been used to obtain input curves from [ 18 F]FDG and [ 11 C]MPDX human brain data [12,13].…”
Section: Introductionmentioning
confidence: 99%
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“…Alternative non-invasive methods for estimation of the input function have been described based on cluster analysis [1], based on linear decomposition methods such as independent component analysis (ICA) [2] [3], and by non-negative matrix factorization (NMF) of the signals in a region of interest [4] and on whole brain data [5]. The linear decomposition methods are preferred because they do not assume that voxels are dominated by the vascular signal, where the NMF method is attractive because of the relative straightforward estimation procedure.…”
Section: Introductionmentioning
confidence: 99%