EJNMMI Physics
IF
3.31
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519
Papers 503
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Newest
#1Wonseok Whi (NGUC: New Generation University College)H-Index: 1
#2Hongyoon Choi (NGUC: New Generation University College)H-Index: 20
Last. Dong Soo Lee (NGUC: New Generation University College)H-Index: 86
view all 6 authors...
BACKGROUND The whole brain is often covered in [18F]Fluorodeoxyglucose positron emission tomography ([18F]FDG-PET) in oncology patients, but the covered brain abnormality is typically screened by visual interpretation without quantitative analysis in clinical practice. In this study, we aimed to develop a fully automated quantitative interpretation pipeline of brain volume from an oncology PET image. METHOD We retrospectively collected 500 oncologic [18F]FDG-PET scans for training and validation...
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#1Peter Frøhlich Staanum (Aarhus University Hospital)H-Index: 1
#2Anders Floor Frellsen (Aarhus University Hospital)
Last. Anne Kirstine Arveschoug (Aarhus University Hospital)H-Index: 7
view all 5 authors...
BACKGROUND Kidney dosimetry after peptide receptor radionuclide therapy using 177Lu-labelled somatostatin analogues is a procedure with multiple steps. We present the SPECT/CT-based implementation at Aarhus University Hospital and evaluate the uncertainty of the various steps in order to estimate the total uncertainty and to identify the major sources of uncertainty. Absorbed dose data from 115 treatment fractions are reported. RESULTS The total absorbed dose with uncertainty is presented for 59...
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#1Carlo ChiesaH-Index: 32
#2Katarina Sjögreen-Gleisner (Lund University)H-Index: 7
Last. Mark Konijnenberg (EUR: Erasmus University Rotterdam)H-Index: 29
view all 10 authors...
The aim of this standard operational procedure is to standardize the methodology employed for the evaluation of pre- and post-treatment absorbed dose calculations in 90Y microsphere liver radioembolization. Basic assumptions include the permanent trapping of microspheres, the local energy deposition method for voxel dosimetry, and the patient–relative calibration method for activity quantification.The identity of 99mTc albumin macro-aggregates (MAA) and 90Y microsphere biodistribution is also as...
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#1Yukito Maeda (Kagawa University)H-Index: 11
#2Yuka Yamamoto (Kagawa University)H-Index: 37
Last. Nobuyuki Kudomi (Kagawa University)H-Index: 20
view all 8 authors...
BACKGROUND The present study tested the possible utility of fractal analysis from L-[methyl-11C]-methionine (MET) uptake in patients with newly diagnosed gliomas for differentiating glioma, especially in relation to isocitrate dehydrogenase 1 (IDH1) mutation status, and as compared with the conventional standardized uptake value (SUV) parameters. METHODS Investigations of MET PET/CT were performed retrospectively in 47 patients with newly diagnosed glioma. Tumors were divided into three groups: ...
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#1Richard LaforestH-Index: 47
#2Mehdi Khalighi (SU: Stanford University)H-Index: 5
Last. John Sunderland (UI: University of Iowa)H-Index: 19
view all 12 authors...
OBJECTIVE Simultaneous PET/MRIs vary in their quantitative PET performance due to inherent differences in the physical systems and differences in the image reconstruction implementation. This variability in quantitative accuracy confounds the ability to meaningfully combine and compare data across scanners. In this work, we define image reconstruction parameters that lead to comparable contrast recovery curves across simultaneous PET/MRI systems. METHOD The NEMA NU-2 image quality phantom was im...
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#1Ukihide Tateishi (TMDU: Tokyo Medical and Dental University)H-Index: 51
#2Hiromitsu Daisaki (GCHS: Gunma Prefectural College of Health Sciences)H-Index: 1
Last. Kota Yokoyama (TMDU: Tokyo Medical and Dental University)H-Index: 2
view all 7 authors...
BACKGROUND This study was conducted to clarify how patient body mass affects the image quality and quantification accuracy of images obtained using 89Zr PET/CT. 89Zr PET/CT images from time-of-flight (TOF) PET/CT and semiconductor (SC) PET/CT were obtained using three types (M, L, LL; corresponding to increasing patient body weight) of custom-made body phantoms designed similarly to the National Electrical Manufacturers Association (NEMA) IEC body phantom. The phantom data were analyzed visually...
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#1S. Peter Kim (McGill University)H-Index: 1
#2Daniel Juneau (University of Montreal)H-Index: 9
Last. Shirin A. Enger (McGill University)H-Index: 14
view all 4 authors...
Multiple post-treatment dosimetry methods are currently under investigation for Yttrium-90 ( null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null null $^{90}\hbox {Y} null null null null nul...
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#1Alessandro Desy (Université Laval)H-Index: 3
#2Guillaume F. Bouvet (Université Laval)H-Index: 6
Last. Jean-Mathieu Beauregard (Université Laval)H-Index: 18
view all 7 authors...
BACKGROUND Accurate QSPECT is crucial in dosimetry-based, personalized radiopharmaceutical therapy with 177Lu and other radionuclides. We compared the quantitative performance of three NaI(Tl)-crystal SPECT/CT systems equipped with low-energy high-resolution collimators from two vendors (Siemens Symbia T6; GE Discovery 670 and NM/CT 870 DR). METHODS Using up to 14 GBq of 99mTc in planar mode, we determined the calibration factor and dead-time constant under the assumption that these systems have...
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#1Kristian Valind (Lund University)H-Index: 1
#2Jonas Jögi (Lund University)H-Index: 23
Last. Elin Trägårdh (Lund University)H-Index: 14
view all 5 authors...
BACKGROUND In Prostate-specific membrane antigen (PSMA) positron emission tomography with computed tomography (PET-CT), there is significant renal uptake. The standard in renal cortical functional imaging is scintigraphy with technetium-99m labeled dimercaptosuccinic acid (DMSA). Using [68Ga]Ga-PSMA-11 PET for renal imaging has been suggested, but using [18F]PSMA-1007 has not been explored. The aims of this study were to establish the optimal time point for renal imaging after [18F]PSMA-1007 inj...
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#1Alexander Doruyter (UCT: University of Cape Town)H-Index: 4
#2J. L. Holness (UCT: University of Cape Town)
PURPOSE Ventilation-perfusion single-photon emission computed tomography (VP SPECT) plays an important role in pulmonary embolism diagnosis. Rapid results may be obtained using same-day ventilation followed by perfusion imaging, but generally requires careful attention to achieving an optimal count rate ratio (P/V ratio) of ≥ 3:1. This study investigated whether the ratio of counts simultaneously acquired in adjacent primary and Compton scatter energy windows (Eratio) on V SPECT was predictive o...
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