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

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https://www.readbyqxmd.com/read/28916624/bone-marrow-and-not-bone-metastases-is-what-21st-century-diagnostic-imaging-must-focus-upon-when-looking-for-skeletal-metastases
#1
Poul Flemming Høilund-Carlsen, Søren Hess, Abass Alavi
No abstract text is available yet for this article.
September 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28916623/efficacy-of-radioembolization-with-holmium-166-microspheres-in-salvage-patients-with-liver-metastases-a-phase-2-study
#2
Jip F Prince, Maurice A A J van den Bosch, J F W Nijsen, Maarten L J Smits, Andor F van den Hoven, Stavros Nikolakopoulos, Frank J Wessels, Rutger C G Bruijnen, Manon Braat, Bernard A Zonnenberg, Marnix Lam
Rationale: Radioembolization of liver malignancies with holmium-166 (166Ho) microspheres has been shown safe in a phase 1 dose-escalation study. The purpose of this study was to investigate the efficacy of 166Ho radioembolization. Methods: In this prospective single-arm study, 56 patients were enrolled, all with liver metastases refractory to systemic therapy and ineligible for surgical resection. Radioembolization was performed with a projected average absorbed dose of 60 Gy to the liver (equal to 3.8 GBq/kg liver tissue)...
September 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28916622/quantification-and-determination-of-normal-123-i-meta-iodobenzylguanidine-heart-to-mediastinum-ratio-hmr-from-cardiac-spect-ct-and-correlation-with-planar-hmr
#3
Raza Alvi, Edward J Miller, Taraneh Hashemi Zonouz, Veronica Sandoval, Noor Tariq, Rachel Lampert, Albert J Sinusas, Yi-Hwa Liu
Assessment of cardiac (123)I-mIBG uptake relies on the heart-to-mediastinal ratio (HMR) derived from planar images. We have developed novel semi-automated quantitative methodologies for assessing HMR from single photon emission computed tomography (SPECT) images using a dedicated cardiac multi-pinhole SPECT/computerized tomography (CT) system and determined the lower limit of normal (LLN) SPECT-derived HMR and the correlation to planar-derived HMR. Methods: Twenty-one healthy volunteers were injected with (123)I-meta Iodobenzylguanidine ((123)I-mIBG) and imaged using two different cameras...
September 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28916621/-64-cu-labeled-repebody-molecules-for-imaging-of-epidermal-growth-factor-receptor-expressing-tumors
#4
Ayoung Pyo, Misun Yun, Hyeon-Sik Kim, Tae-Yoon Kim, Joong-Jae Lee, Jung Young Kim, Sunwoo Lee, Seong Young Kwon, Hee-Seung Bom, Hak-Sung Kim, Dong-Yeon Kim, Jung-Joon Min
The epidermal growth factor receptor (EGFR) is a member of the erbB family of receptors and is overexpressed in many tumor types. A repebody is a newly designed non-antibody protein scaffold for tumor targeting that contains leucine-rich repeat modules. In this study, three (64)Cu-labeled anti-EGFR repebodies with different chelators were synthesized, and their biological characteristics were assessed in cultured cells and tumor-bearing mice. Methods: Repebodies (rEgAs) were synthesized with the chelators p-SCN-Bn-NOTA, DOTA-NHS ester, or p-SCN-Bn-DTPA in 1...
September 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912151/in-vitro-evaluation-of-molecular-tumor-targets-in-nuclear-medicine-immunohistochemistry-is-one-option-but-under-which-conditions
#5
Jean Claude Reubi
The identification of new molecular targets for diagnostic and therapeutic applications using in vitro methods is an important challenge in nuclear medicine. One of the methods is immunohistochemistry, increasingly popular due to its easy-to-perform procedure. This review presents the case for conducting receptor immunohistochemistry to evaluate potential molecular targets in human tumor tissue sections. The focus is on the immunohistochemistry of G-protein-coupled receptors (GPCR), one of the largest families of cell surface proteins, representing a major class of drug targets and thus playing an important role in nuclear medicine...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912150/-18-f-fdg-pet-in-parkinsonism-differential-diagnosis-and-cognitive-impairment-in-parkinson-s-disease
#6
Philipp T Meyer, Lars Frings, Gerta Rücker, Sabine Hellwig
Accurate differential diagnosis of parkinsonism is of a paramount therapeutic and prognostic importance. In addition, with the development of invasive therapies and novel disease-specific therapies, strategies for patient enrichment in trial populations are of growing importance. Imaging disease-specific patterns of regional glucose metabolism with positron emission tomography and [(18)F]fluoro-2-deoxy-2-D-glucose ((18)F-FDG) allows for a highly accurate distinction between Parkinson's disease (PD) and atypical parkinsonian syndromes (APS) including multiple system atrophy (MSA), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD)...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912149/letter-re-18-f-gp1-a-novel-pet-tracer-designed-for-high-sensitivity-low-background-detection-of-thrombi
#7
Abass Alavi, Thomas J Werner, Søren Hess, Poul Flemming Høilund-Carlsen
No abstract text is available yet for this article.
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912148/thermal-imaging-is-a-non-invasive-alternative-to-pet-ct-for-measurement-of-brown-adipose-tissue-activity-in-humans
#8
James Matthew Law, David Edward Morris, Chioma Izzi Engbeaya, Victoria Salem, Christopher Coello, Lindsay Robinson, Maduka Jayasinghe, Rebecca Scott, Roger Gunn, Eugenii Rabiner, Tricia Tan, Waljit Dhillo, Stephen Bloom, Helen Budge, Michael Symonds
Background: Obesity and its metabolic consequences are a major cause of morbidity and mortality. Brown adipose tissue (BAT) utilises glucose and free fatty acids to produce heat, thereby increasing energy expenditure. Effective evaluation of human BAT stimulators is constrained by current standard BAT assessment methods as positron emission tomography-computed tomography (PET-CT) requires exposure to high doses of ionising radiation. Infrared thermography (IRT) is a potential non-invasive, safe alternative, although direct corroboration with PET-CT has not previously been established...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912147/performance-of-a-pet-insert-for-high-resolution-small-animal-pet-mr-imaging-at-7t
#9
Greg Stortz, Jonathan D Thiessen, Daryl Bishop, Muhammad S Khan, Piotr Kozlowski, Fabrice Retière, Graham Schellenberg, Ehsan Shams, Xuezhu Zhang, Christopher J Thompson, Andrew Goertzen, Vesna Sossi
We present the characterization of a compact magnetic resonance (MR) compatible positron emission tomography (PET) insert for simultaneous pre-clinical PET/MR imaging. While specifically designed with the strict size constraint to fit inside the 114 mm inner diameter of the BGA-12S gradient coil used in the Bruker 70/20 and 94/20 series of small animal MR imaging (MRI) systems, the insert can be easily installed in any appropriate MRI scanner or used as a stand-alone PET system. Methods: The insert is made from a ring of 16 detector-blocks each made from depth-of-interaction capable dual-layer-offset arrays of cerium-doped lutetium-yttrium oxyorthosilicate crystals read out by silicon photomultiplier (SiPM) arrays...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912146/cerenkov-activated-sticky-tag-for-in-vivo-fluorescence-imaging
#10
Sudeep Das, Katja Haedicke, Jan Grimm
A big challenge for the clinical utilization of Cerenkov luminescence (CL) imaging is its low signal intensity, which is several orders of magnitude below ambient light. Consequently, highly sensitive cameras, sufficient shielding from background light and long acquisition times are required. To alleviate this problem, we hypothesize a strategy to convert the weak CL signal into a stronger fluorescence signal by using CL-activated formation of nitrenes from azides to locally fix a fluorescent probe in tissue by the formation of a covalent bond...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912145/dynamic-18-f-fdg-pet-lymphography-for-in-vivo-identification-of-lymph-node-metastases-in-murine-melanoma
#11
Hannah H Lockau, Volker Neuschmelting, Anuja Ogirala, Antoni Vilaseca, Jan Grimm
Objective: Positron Lymphography using (18)F-FDG followed by Cerenkov guided resection of lymph nodes in healthy mice has previously been introduced by our group. Our aim in this study was to further assess the technique`s potential beyond merely localizing sentinel lymph nodes. We now aimed to evaluate the potential of Positron Lymphography to characterize the nodes with respect to their tumor status on order to identify metastatic lymph nodes. We explored if metastatic nodes could be distinguished from normal nodes via dynamic (18)F-FDG-lymphography, in order to then be resected under Cerenkov imaging guidance...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28912144/androgen-and-estrogen-receptor-imaging-in-metastatic-breast-cancer-patients-as-a-surrogate-for-tissue-biopsies
#12
Clasina M Venema, Lemonitsa H Mammatas, Carolina P Schröder, Michel van Kruchten, Giulia Apollonio, Andor W J M Glaudemans, A H H Bongaerts, Otto S Hoekstra, Henk M W Verheul, Epie Boven, Bert van der Vegt, Erik F de Vries, Elisabeth G E de Vries, Ronald Boellaard, Catharina Willemien Menke-van der Houven van Oordt, Geke Ap Hospers
In addition to the well-known estrogen receptor (ER) and the human epidermal growth factor receptor 2 (HER2), the androgen receptor (AR) is also a potential drug target in breast cancer treatment. Whole body imaging can provide information across lesions within a patient. ER expression in tumor lesions can be visualized by (18)F-fluoroestradiol (FES) PET, and AR expression has been visualized in prostate cancer patients with (18)F-fluorodihydrotestosterone (FDHT) PET. Our aim was to assess the concordance between FDHT- and FES-PET and tumor AR- and ER-expression measured immunohistochemically (IHC) in patients with metastatic breast cancer...
September 14, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28887401/proposal-of-a-structured-reporting-system-for-prostate-specific-membrane-antigen-psma-targeted-pet-imaging-psma-rads-version-1-0
#13
Steven Rowe, Kenneth Pienta, Martin G Pomper, Michael Gorin
As medical imaging has grown progressively more complicated and sub-specialized in recent decades, a number of standardized reporting systems have been proposed for a variety of imaging modalities and conditions. These include reporting and data systems for imaging of the breast (BI-RADS) (1), prostate (PI-RADS) (2), lung (LUNG-RADS) (3), liver (LI-RADS) (4), and thyroid (TI-RADS) (5). While these systems differ extensively in their details, each provides a standardized framework for conveying findings and recommendations to clinicians...
September 8, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28887400/radar-dose-estimate-report-a-compendium-of-radiopharmaceutical-dose-estimates-based-on-olinda-exm-version-2-0
#14
Michael Stabin, Jeffry A Siegel
We present here a compendium of about 100 radiopharmaceuticals, using the new OLINDA/EXM version 2.0 software. A totally new generation of voxel-based, realistic human computational phantoms, based on 2007 recommendations of the International Commission on Radiological Protection (ICRP) was used to develop the phantoms, and the most recent biokinetic models were employed as well. These estimates should serve the worldwide user community for many years, and they can be modified and updated as models are changed, and new radiopharmaceuticals are added, as they will be maintained in electronic form...
September 8, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28887399/validation-of-post-induction-curie-scores-in-high-risk-neuroblastoma-a-children-s-oncology-group-cog-and-siopen-group-report-on-siopen-hr-nbl1
#15
Gregory A Yanik, Marguerite T Parisi, Arlene Naranjo, Helen Nadel, Michael J Gelfand, Julie R Park, Ruth L Ladenstein, Ulrike Poetschger, Ariane Boubaker, Dominique Valteau-Couanet, Bieke Lambert, Maria-Rita Castellani, Zvi Bar-Sever, Aurore Oudoux, Anna Kaminska, Susan G Kreissman, Barry L Shulkin, Katherine K Matthay
A semi-quantitative metaiodobenzylguanidine (mIBG) scoring method (Curie scoring, CS) was previously examined in the Children's Oncology Group (COG) high risk neuroblastoma trial, COG A3973 (A Randomized Study of Purged vs. Unpurged Peripheral Blood Stem Cell Transplant Following Dose Intensive Induction Therapy for High Risk Neuroblastoma), with a post-induction CS>2 associated with poor event free survival (EFS). The validation of Curie scoring in an independent data set, High Risk Neuroblastoma1/International Society of Pediatric Oncology European Network (SIOPEN/HR-NBL1), is now reported...
September 8, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28887398/-64-cucl2-pet-ct-in-prostate-cancer-relapse
#16
Arnoldo Piccardo, Francesco Paparo, Matteo Puntoni, Sergio Righi, Gianluca Bottoni, Lorenzo Bacigalupo, Silvia Zanardi, Andrea DeCensi, Giulia Ferrarazzo, Monica Gambaro, Filippo Grillo Ruggieri, Fabio Campodonico, Laura Tomasello, Luca Timossi, Simona Sola, Egesta Lopci, Manlio Cabria
To evaluate the biodistribution, kinetics and radiation dosimetry of (64)CuCl2 in humans and to assess the ability of (64)CuCl2-PoPET/CT to detect prostate cancer (PCa) recurrence in patients with biochemical relapse. Methods: we prospectively evaluated 50 PCa patients with biochemical relapse after surgery or external-beam radiation therapy. All patients underwent (64)CuCl2-PET/CT, (18)F-Choline-PET/CT and multiparametric magnetic resonance imaging (mpMRI) within 15 days of each other. Experienced readers interpreted the images, and the detection rate (DR) of each imaging modality was calculated...
September 8, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28864634/evaluation-of-the-lysophosphatidic-acid-receptor-type-1-radioligand-11-c-bmt-136088-for-lung-imaging-in-rhesus-monkeys
#17
Jean-Dominique Gallezot, Nabeel B Nabulsi, Daniel Holden, Shu-Fei Lin, David Labaree, Jim Ropchan, Soheila Najafzadeh, David J Donnelly, Kai Cao, Samuel Bonacorsi, Jon Seiders, Jeffrey Roppe, Wendy Hayes, Yiyun Huang, Shuyan Du, Richard E Carson
The lysophosphatidic acid receptor type 1 (LPA1) is one of six known receptors of the extracellular signaling molecule LPA. It mediates effects such as cell proliferation, migration and differentiation. In the lung, LPA1 is involved in pathways leading, after lung tissue injury, to pulmonary fibrosis instead of normal healing, by mediating fibroblast recruitment and vascular leak. Thus, a LPA1 positron emission tomography (PET) radiotracer may be useful to study lung fibrosis, or to develop LPA1-targeting drugs...
September 1, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28864633/correlations-of-18-f-thk5351-pet-with-post-mortem-burden-of-tau-and-astrogliosis-in-alzheimer-s-disease
#18
Ryuichi Harada, Aiko Ishiki, Hideaki Kai, Naomi Sato, Katsutoshi Furukawa, Shozo Furumoto, Tetsuro Tago, Naoki Tomita, Shoichi Watanuki, Kotaro Hiraoka, Yoichi Ishikawa, Yoshihito Funaki, Tadaho Nakamura, Takeo Yoshikawa, Ren Iwata, Manabu Tashiro, Hironobu Sasano, Tetsuyuki Kitamoto, Kazuhiko Yanai, Hiroyuki Arai, Yukitsuka Kudo, Nobuyuki Okamura
Clinical PET studies using (18)F-THK5351 have demonstrated significant tracer retention in sites susceptible to tau burden in Alzheimer's disease (AD). However, the in vivo PET signal to reflect tau aggregates remains controversial. Methods: We examined the spatial pattern of tracer binding, amyloid-β, tau and gliosis in an autopsy-confirmed AD case who underwent (18)F-THK5351 and (11)C-PiB PET before death. Results: Regional in vivo (18)F-THK5351 retention was significantly correlated with the density of tau aggregates in the neocortex and monoamine oxidase-B (MAO-B) in the whole brain, but not correlated with that of insoluble amyloid-β...
September 1, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28864632/radium-223-therapy-of-advanced-metastatic-castration-resistant-prostate-cancer-quantitative-assessment-of-skeletal-tumor-burden-for-prognostication-of-clinical-outcome-and-hematological-toxicity
#19
Marie Øbro Fosbøl, Peter Meidahl Petersen, Andreas Kjaer, Jann Mortensen
Aim: To investigate the prognostic value of quantitative assessment of skeletal tumor burden on bone scintigraphy (Bone Scan Index) in patients with advanced metastatic castration-resistant prostate cancer (mCRPC) receiving Radium-223-dichloride ((223)RaCl2). We hypothesize that Bone Scan Index (BSI) can serve as a prognostic biomarker of overall survival (OS) and hematological toxicity, as well as a tool for response assessment in patients with mCRPC treated with (223)RaCl2Methods: Retrospective study of the Danish cohort of mCRPC patients who received (223)RaCl2 therapy between March 2014 and October 2015 and for whom a baseline bone scintigraphy was available...
September 1, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28864631/radionuclide-tumor-targeting-using-adapt-scaffold-proteins-aspects-of-label-positioning-and-residualizing-properties-of-the-label
#20
Sarah Lindbo, Javad Garousi, Bogdan Mitran, Mohamed Altai, Jos Buijs, Anna Orlova, Sophia Hober, Vladimir Tolmachev
Visualization of cancer-associated alterations of molecular phenotype using radionuclide imaging is a non-invasive approach to stratify patients for targeted therapies. The engineered scaffold protein ABD-.derived affinity protein (ADAPT) is a promising tracer for radionuclide molecular imaging due to its small size (6.5 kDa), that provides precondition for efficient tumor penetration and rapid clearance. Previous studies demonstrated that the human epidermal growth factor receptor type 2 (HER2)-targeting ADAPT6 labeled with radiometals at the N-terminus provides imaging of HER2 expression in xenografts a few hours after injection...
September 1, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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