Simultaneous estimation of physiological parameters and the input function : in vivo PET data

Author name used in this publication: (David) Dagan FengCentre for Multimedia Signal Processing, Department of Electronic and Information Engineering2000-2001 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Estimation of input function and kinetic parameters using simulated annealing : application in a flow model

Author name used in this publication: Dagan FengCentre for Multimedia Signal Processing, Department of Electronic and Information Engineering2002-2003 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Segmentation of dynamic PET images using cluster analysis

Author name used in this publication: Dagan FengVersion of RecordPublishe

Non-invasive extraction of physiological parameters in quantitative PET studies using simultaneous estimation and cluster analysis

Author name used in this publication: Dagan FengRefereed conference paper2000-2001 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Adaptive fuzzy clustering in constructing parametric images for low SNR functional imaging

Author name used in this publication: Michael FulhamAuthor name used in this publication: Dagan FengRefereed conference paper2008-2009 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Segmentation of dual modality brain PET/CT images using the MAP-MRF model

Author name used in this publication: Michael FulhamAuthor name used in this publication: Dagan FengRefereed conference paper2008-2009 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Development of an electronic medical report delivery system to 3G GSM mobile (cellular) phones for a medical imaging department

Author name used in this publication: Dagan FengAuthor name used in this publication: Michael FulhamRefereed conference paper2007-2008 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Constructing reliable parametric images using enhanced GLLS for dynamic SPECT

Author name used in this publication: (David) Dagan Feng2008-2009 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Classification of dementia from FDG-PET parametric images using data mining

Author name used in this publication: Michael FulhamAuthor name used in this publication: (David) Dagan FengCentre for Multimedia Signal Processing, Department of Electronic and Information EngineeringRefereed conference paper2007-2008 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Adaptive fuzzy clustering in constructing parametric images for low SNR functional imaging

Functional imaging can provide quantitative functional parameters to aid early diagnosis. Low signal to noise ratio (SNR) in functional imaging, especially for single photon emission computed tomography, poses a challenge in generating voxel-wise parametric images due to unreliable or physiologically meaningless parameter estimates. Our aim was to systematically investigate the performance of our recently proposed adaptive fuzzy clustering (AFC) technique, which applies standard fuzzy clustering to sub-divided data. Monte Carlo simulations were performed to generate noisy dynamic SPECT data with quantitative analysis for the fitting using the general linear least square method (GLLS) and enhanced model-aided GLLS methods. The results show that AFC substantially improves computational efficiency and obtains improved reliability as standard fuzzy clustering in estimating parametric images but is prone to slight underestimation. Normalization of tissue time activity curves may lead to severe overestimation for small structures when AFC is applied.Department of Electronic and Information EngineeringAuthor name used in this publication: Michael FulhamAuthor name used in this publication: Dagan FengRefereed conference pape