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Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine

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https://www.readbyqxmd.com/read/28209913/rapid-imaging-of-tumor-cell-death-in-vivo-using-the-c2a-domain-of-synaptotagmin-i
#1
André A Neves, Bangwen Xie, Sarah Fawcett, Israt S Alam, Timothy H Witney, Maaike M de Backer, Julia Summers, William Hughes, Sarah McGuire, Dmitry Soloviev, Jodie Miller, William J Howat, De-En Hu, Tiago B Rodrigues, David Y Lewis, Kevin M Brindle
Cell death is an important target for imaging the early response of tumors to treatment. We describe here validation of a phosphatidylserine-binding agent for detecting tumor cell death in vivo based on the C2A domain of Synaptotagmin-I. Methods: The capability of near infrared fluorophore-labeled and 99mTechnetium- and (111)Indium-labeled derivatives of C2Am for imaging tumor cell death, using planar near infrared fluorescence (NIRF) imaging and single photon computed tomography (SPECT) respectively, was evaluated in implanted and genetically engineered mouse models of lymphoma and in a human colorectal xenograft...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209912/detection-efficacy-of-hybrid-68-ga-psma-ligand-pet-ct-in-prostate-cancer-patients-with-biochemical-recurrence-after-primary-radiation-therapy-defined-by-phoenix-criteria
#2
Ingo Einspieler, Isabel Rauscher, Charlotte Düwel, Markus Krönke, Christoph Rischpler, Gregor Habl, Sabrina Dewes, Armin Ott, Hans-Jürgen Wester, Markus Schwaiger, Tobias Maurer, Matthias Eiber
The aim of this retrospective study was to evaluate the detection rate of Glu-NH-CO-NH-Lys-(Ahx)-[(68)Ga(HBED-CC)] ((68)Ga-PSMA ligand) positron emission tomography/computed tomography (PET/CT) in patients with biochemical recurrent prostate cancer (PC) defined by Phoenix criteria after external beam radiotherapy (EBRT) or brachytherapy as primary treatment. Methods: 118 patients were finally eligible for this retrospective analysis with a median prostate-specific antigen (PSA) of 6.4 ng/mL (range: 2.2-158...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209911/eliminating-the-use-of-the-linear-no-threshold-assumption-in-medical-imaging
#3
Jeffry A Siegel, Bill Sacks
No abstract text is available yet for this article.
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209910/letter-to-the-editor
#4
Carol Silber Marcus
No abstract text is available yet for this article.
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209909/diabetes-mellitus-and-its-effects-on-all-cause-mortality-after-radiopeptide-therapy-for-neuroendocrine-tumors-methodological-issues
#5
Reza Pakzad, Saeid Safiri
No abstract text is available yet for this article.
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209908/prescribed-activities-of-i-131-therapies-in-differentiated-thyroid-cancer-invited-commentary
#6
Douglas Van Nostrand
No abstract text is available yet for this article.
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209907/equivalent-dose-rate-at-1m-of-patients-with-known-or-suspected-neuroendocrine-tumor-exiting-a-nuclear-medicine-department-after-68-ga-dotatoc-18-f-fdopa-or-18-f-fdg-pet-ct-or-111-in-pentetreotide-or-123-i-mibg-spect-ct
#7
Jules Zhang-Yin, Anne-Sophie Dirand, Myriam Sasanelli, Gwenaelle Corrégé, Aude Peudon, Thierry Kiffel, Valérie Nataf, Jérôme Clerc, Françoise Montravers, Jean-Noël Talbot
(123)I-mIBG and (111)In-pentetrotide SPECT have been used for functional imaging of neuroendocrine tumors (NET) for the last two decades. More recently, PET/CT imaging with (18)F-FDG, (18)F-FDOPA and (68)Ga somatostatin-receptor ligands in NETs has been expanding. No direct measurements of the dose rate from NET patients exiting the nuclear medicine department could be found in the literature after PET/CT with (18)F-FDOPA or (68)Ga-DOTATOC, a somatostatin analogue. Methods: We measured the dose rates from NET patients undergoing PET/CT or SPECT/CT in our centers...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209906/first-evaluation-of-pet-based-human-biodistribution-and-dosimetry-of-18-f-faza-a-tracer-for-imaging-tumor-hypoxia
#8
Savi Annarita, Elena Incerti, Federico Fallanca, Valentino Bettinardi, Francesca Rossetti, Cristina Monterisi, Antonia Compierchio, Giampiero Negri, Piero Zannini, Luigi Gianolli, Maria Picchio
Fluorine-18 labelled fluoroazomycinarabinoside ((18)F-FAZA) is a positron emission tomography (PET) biomarker for non-invasive identification of regional tumor hypoxia. Aim of the present Phase I study was to firstly evaluate in non-small cell lung cancer patients the human biodistribution and dosimetry of (18)F-FAZA. Methods: Five patients awaiting surgical resection after histologically proven or radiologically suspected non-small cell lung cancer were prospectively enrolled for the study. The patients underwent a PET/computed tomography (CT) study after the injection of 371±32 MBq of (18)F-FAZA...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209905/diagnostic-value-of-18-f-fdg-pet-ct-versus-mri-in-the-setting-of-antibody-specific-autoimmune-encephalitis
#9
Lilja B Solnes, Krystyna M Jones, Steven P Rowe, Puskar Pattanayak, Abhinav Nalluri, Arun Venkatesan, John C Probasco, Mehrbod Som Javadi
Introduction: Diagnosis of autoimmune encephalitis presents some challenges in the clinical setting due to varied clinical presentations and delay in obtaining antibody panel results. We examined the role of neuroimaging in the setting of autoimmune encephalitides comparing the utility (18)F-FDG PET/CT versus conventional brain imaging with MRI. Methods: A retrospective study was performed assessing the positivity rate of MRI versus (18)F-FDG PET/CT during the initial work-up of 23 patients proven to have antibody positive autoimmune encephalitis...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28209904/noninvasive-imaging-of-human-immune-responses-in-a-human-xenograft-model-of-graft-versus-host-disease
#10
Catharina H M J Van Elssen, Mohammad Rashidian, Vladimir Vrbanac, Kai W Wucherpfennig, Zeina El Habre, Jana Sticht, Christian Freund, Johanne Jacobsen, Juanjo Cragnolini, Jessica Ingram, Loes Plaisier, Eric Spierings, Andrew M Tager, Hidde Ploegh
The immune system plays a crucial role in many diseases. Activation or suppression of immunity is often related to clinical outcome. Methods to explore the dynamics of immune responses are important to elucidate their role in conditions characterized by inflammation, such as infectious disease, cancer or auto-immunity. Immuno-PET is a non-invasive method by which disease and immune cell infiltration can be explored simultaneously. Using radiolabeled antibodies or fragments derived from them, it is possible to image disease-specific antigens and immune cell subsets...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183994/optimal-reference-region-to-measure-longitudinal-amyloid-beta-change-with-18-f-florbetaben-pet
#11
Santiago Bullich, Victor L Villemagne, Ana M Catafau, Aleksandar Jovalekic, Norman Koglin, Christopher C Rowe, Susan De Santi
Accurate measurement of changes in amyloid-beta (Aβ) deposition over time is important in longitudinal studies, particularly in anti-Aβ therapeutic trials. To achieve this, the optimal reference region (RR) must be selected to reduce variance of Aβ positron emission tomography (PET) measurements, allowing early detection of treatment efficacy. The aim of this study was to determine the RR that allows earlier detection of subtle Aβ changes using (18)F florbetaben (FBB) PET. Methods: Forty-five patients with mild cognitive impairment (MCI) (72...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183993/multiparametric-imaging-of-tumor-hypoxia-and-perfusion-with-18-f-fmiso-dynamic-pet-in-head-and-neck-cancer
#12
Milan Grkovski, Heiko Schöder, Nancy Lee, Sean D Carlin, Bradley Jay Beattie, Nadeem Riaz, Jonathan E Leeman, Joseph A O'Donoghue, John Laurence Humm
Tumor hypoxia and perfusion are independent prognostic indicators of patient outcome. We developed the methodology for, and investigated the utility of multiparametric imaging of tumor hypoxia and perfusion with (18)F-fluoromisonidazole (FMISO) dynamic positron emission tomography (dPET) in head and neck cancer (HNC). Methods: 120 HNC patients underwent 0-30 min FMISO dPET in a customized immobilization mask, followed by 10 min static acquisitions starting at 93±6 and 160±13 min post-injection. A total of 248 lesions (≥2 cm(3)) were analyzed...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183992/personalized-medicine-promises-and-pitfalls
#13
E Edmund Kim
No abstract text is available yet for this article.
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183991/cardiac-and-respiratory-motion-correction-for-simultaneous-cardiac-pet-mr
#14
Christoph Kolbitsch, Mark A Ahlman, Cynthia Davies-Venn, Robert Evers, Michael Hansen, Devis Peressutti, Paul Marsden, Peter Kellman, David A Bluemke, Tobias Schaeffter
Cardiac Positron Emission Tomography (PET) is a versatile imaging technique providing important diagnostic information about ischemic heart diseases. Respiratory and cardiac motion of the heart can strongly impair image quality and therefore diagnostic accuracy of cardiac PET scans. The aim of this study is to investigate a new cardiac PET-Magnetic Resonance (MR) approach providing respiratory and cardiac motion-compensated MR and PET images in less than five minutes. Methods: Free-breathing 3D MR data was acquired and retrospectively binned into multiple respiratory and cardiac motion states...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183990/human-dosimetry-of-the-nmda-receptor-ligand-11-c-gmom
#15
Jasper van der Aart, Thalia F van der Doef, Paul Horstman, Marc C Huisman, Robert C Schuit, Arthur van Lingen, Albert D Windhorst, Bart N M van Berckel, Adriaan A Lammertsma
The methylguanadine derivative [(11)C]GMOM has been used successfully to quantify N-methyl-D-aspartate (NMDA) receptor binding in humans. The purpose of the present study was to estimate the [(11)C]GMOM radiation dose in healthy humans. Methods: Following [(11)C]GMOM injection, three female and two male subjects underwent 10 consecutive whole body PET scans in approximately 77 minutes. 7 source organs were defined manually, scaled to a gender specific reference, and residence times were calculated for input into OLINDA/EXM software...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183989/comparison-of-empiric-versus-whole-body-blood-clearance-dosimetry-based-approach-to-radioactive-iodine-treatment-in-patients-with-metastases-from-differentiated-thyroid-cancer
#16
Glenn D Flux, Frederik A Verburg, Carlo Chiesa, Manuel Bardies, Katarina Sjogreen Gleisner, Barbara Hertz, Mark W Konijnenberg, Michael Lassmann, Michael Ljungberg, Markus Luster, Michael G Stabin, Lidia Strigari
No abstract text is available yet for this article.
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183988/molecular-imaging-of-vulnerable-coronary-plaque-a-pathophysiological-perspective
#17
Sandeep Krishnan, Yuka Otaki, Mhairi Doris, Leandro Slipczuk, Yoav Arnson, Mathieu Rubeaux, Damini Dey, Piotr Slomka, Daniel S Berman, Balaji Tamarappoo
Atherothrombotic events that occur in coronary arteries due to rupture of unstable plaque can result in myocardial infarction. Radiolabeled molecular imaging tracers directed towards cellular targets that are unique to unstable plaque can serve as a powerful tool for identification of high-risk patients and in assessing the potential of new therapeutic approaches. Two commonly available radiopharmaceuticals-(18)F-FDG (18)F-NaF have been used in clinical research for imaging coronary artery plaque, and the association of (18)F-NaF uptake with future atherothrombotic events is being tested in ongoing clinical studies...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183987/in-vivo-hypoxia-pet-imaging-quantifies-the-severity-of-arthritic-joint-inflammation-in-line-with-overexpression-of-hif-and-enhanced-ros-generation
#18
Kerstin Fuchs, Anna Kuehn, Moritz Mahling, Philipp Guenthoer, Andreas Hector, Dominik Hartl, Stefan Laufer, Ursula Kohlhofer, Leticia Quintanilla-Martinez, Gerald Reischl, Martin Röcken, Bernd J Pichler, Manfred Kneilling
Hypoxia is essential for the development of autoimmune diseases such as rheumatoid arthritis (RA) and is associated with the expression of reactive oxygen species (ROS), due to enhanced infiltration of immune cells. The aim of this study was to demonstrate the feasibility of measuring hypoxia non-invasively in vivo in arthritic ankles with positron emission tomography (PET)/magnetic resonance imaging (MRI) using the hypoxia tracers (18)F-fluoromisonidazole (FMISO) and (18)F-fluoroazomycinarabinoside (FAZA)...
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28183986/the-mathematics-and-biology-of-the-biodistribution-of-radiopharmaceuticals-a-clinical-perspective
#19
Dao Le
No abstract text is available yet for this article.
February 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28153957/localization-of-unknown-primary-site-with-68ga-dotatoc-pet-ct-in-patients-with-metastatic-neuroendocrine-tumor
#20
Yusuf Menda, Thomas M O'Dorisio, James Howe, Michael King Schultz, Joseph Dillon, David Dick, Leonard G Watkins, Timothy Ginader, David L Bushnell, John Sunderland, Gideon Kd Zamba, Michael M Graham, M Sue O'Dorisio
: Localization of the site of the unknown primary tumor is critical for surgical treatment of patients presenting with neuroendocrine tumor (NET) with metastases. METHODS: A single-center prospective study was performed to evaluate the safety and efficacy of (68)Ga-DOTATOC PET/CT in patients with diagnosis of or suspected NET. A subgroup of patients with metastases and unknown primary after initial work-up was analyzed. The ((68)Ga)Ga-DOTATOC PET/CT was considered true positive if the positive primary site was confirmed by histology or follow-up imaging...
February 2, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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