Device-less gating for PET/CT using PCA
…, S Rathore, F Engbrant, P Razifar - 2011 IEEE Nuclear …, 2011 - ieeexplore.ieee.org
Movement degrades image quality in PET/CT. The first step in correcting for movement is to
gate the data into different motion states. The gating is usually based on information from …
gate the data into different motion states. The gating is usually based on information from …
[HTML][HTML] Noise correlation in PET, CT, SPECT and PET/CT data evaluated using autocorrelation function: a phantom study on data, reconstructed using FBP and …
P Razifar, M Sandström, H Schnieder, B Långström… - BMC medical …, 2005 - Springer
Background Positron Emission Tomography (PET), Computed Tomography (CT), PET/CT
and Single Photon Emission Tomography (SPECT) are non-invasive imaging tools used for …
and Single Photon Emission Tomography (SPECT) are non-invasive imaging tools used for …
[HTML][HTML] Non-isotropic noise correlation in PET data reconstructed by FBP but not by OSEM demonstrated using auto-correlation function
P Razifar, M Lubberink, H Schneider, B Långström… - BMC medical …, 2005 - Springer
Background Positron emission tomography (PET) is a powerful imaging technique with the
potential of obtaining functional or biochemical information by measuring distribution and …
potential of obtaining functional or biochemical information by measuring distribution and …
Evaluation of the Hsp90 inhibitor NVP-AUY922 in multicellular tumour spheroids with respect to effects on growth and PET tracer uptake
A Monazzam, P Razifar, S Ide, MR Jensen… - Nuclear medicine and …, 2009 - Elsevier
BACKGROUND: Molecular targeting has become a prominent concept in cancer treatment
and heat shock protein 90 (Hsp90) inhibitors are suggested as promising anticancer drugs. …
and heat shock protein 90 (Hsp90) inhibitors are suggested as promising anticancer drugs. …
A new application of pre-normalized principal component analysis for improvement of image quality and clinical diagnosis in human brain PET studies—clinical brain …
P Razifar, J Axelsson, H Schneider, B Långström… - Neuroimage, 2006 - Elsevier
Principal component analysis (PCA) is one of the most applied multivariate image analysis
tool on dynamic Positron Emission Tomography (PET). Independent of used reconstruction …
tool on dynamic Positron Emission Tomography (PET). Independent of used reconstruction …
[HTML][HTML] Multicellular Tumour Spheroid as a model for evaluation of [18F]FDG as biomarker for breast cancer treatment monitoring
A Monazzam, P Razifar, M Simonsson… - Cancer Cell …, 2006 - Springer
Background In order to explore a pre-clinical method to evaluate if [ 18 F]FDG is valid for
monitoring early response, we investigated the uptake of FDG in Multicellular tumour spheroids (…
monitoring early response, we investigated the uptake of FDG in Multicellular tumour spheroids (…
[HTML][HTML] A new, fast and semi-automated size determination method (SASDM) for studying multicellular tumor spheroids
A Monazzam, P Razifar, Ö Lindhe, R Josephsson… - Cancer cell …, 2005 - Springer
Background Considering the width and importance of using Multicellular Tumor Spheroids (MTS)
in oncology research, size determination of MTSs by an accurate and fast method is …
in oncology research, size determination of MTSs by an accurate and fast method is …
[HTML][HTML] Masked volume wise principal component analysis of small adrenocortical tumours in dynamic [11C]-metomidate positron emission tomography
P Razifar, J Hennings, A Monazzam, P Hellman… - BMC Medical …, 2009 - Springer
Background In previous clinical Positron Emission Tomography (PET) studies novel approaches
for application of Principal Component Analysis (PCA) on dynamic PET images such as …
for application of Principal Component Analysis (PCA) on dynamic PET images such as …
Synthesis and characterization of scVEGF‐PEG‐[68Ga]NOTA and scVEGF‐PEG‐[68Ga]DOTA PET tracers
…, P Razifar, M Nair, P Razifar… - Journal of Labelled …, 2011 - Wiley Online Library
Vascular endothelial growth factor (VEGF) signaling via vascular endothelial growth factor
receptor 2 (VEGFR‐2) on tumor endothelial cells is a critical driver of tumor angiogenesis. …
receptor 2 (VEGFR‐2) on tumor endothelial cells is a critical driver of tumor angiogenesis. …
Modeling spheroid growth, PET tracer uptake, and treatment effects of the Hsp90 inhibitor NVP-AUY922
M Bergstrom, A Monazzam, P Razifar… - Journal of Nuclear …, 2008 - Soc Nuclear Med
For a PET agent to be successful as a biomarker in early clinical trials of new anticancer
agents, some conditions need to be fulfilled: the selected tracer should show a response that is …
agents, some conditions need to be fulfilled: the selected tracer should show a response that is …