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https://www.readbyqxmd.com/read/28169837/survival-outcomes-for-patients-with-indeterminate-18fdg-pet-scan-for-extrahepatic-disease-before-liver-resection-for-metastatic-colorectal-cancer-a-retrospective-cohort-study-using-a-prospectively-maintained-database-to-analyze-survival-outcomes-for-patients
#1
Geoffrey Yuet Mun Wong, Rajiv Kumar, Carol Beeke, Shahid Ullah, John Chen, Christos Karapetis, Timothy Price, Rob Padbury
OBJECTIVE: The aim of this study was to evaluate overall survival (OS) and cancer recurrence for patients with indeterminate positron emission tomography (PET) scan for extrahepatic disease (EHD) before liver resection (LR) for colorectal liver metastases (CLMs). SUMMARY OF BACKGROUND DATA: Indeterminate EHD as determined by PET imaging indicates a probability of extrahepatic malignancy and potentially excludes patients from undergoing LR for CLM. METHODS: In a retrospective analysis of prospectively collected data from February 2006 to December 2014, OS for patients with indeterminate EHD on FDG-PET scan before LR for CLM was performed using standard survival analysis methods, including Kaplan-Meier estimator and Cox proportional hazard models for multivariate analyses...
February 6, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28133747/on-the-potential-for-rf-heating-in-mri-to-affect-metabolic-rates-and-18-fdg-signal-in-pet-mr-simulations-of-long-duration-maximum-normal-mode-heating
#2
Giuseppe Carluccio, Yu-Shin Ding, Jean Logan, Christopher M Collins
PURPOSE: To examine the possibility that MR-induced RF power deposition (SAR) and the resulting effects on temperature-dependent metabolic rates or perfusion rates might affect observed 18FDG signal in PET/MR. METHODS: Using numerical simulations of the SAR, consequent temperature increase, effect on rates of metabolism or perfusion, and [18FDG] throughout the body, we simulated the potential effect of maximum-allowable whole-body SAR for the entire duration of an hour-long PET/MR scan on observed PET signal for two different 18FDG injection times: one hour before onset of imaging and concurrent with the beginning of imaging...
December 9, 2016: Medical Physics
https://www.readbyqxmd.com/read/28104743/active-brown-fat-during-18fdg-pet-ct-imaging-defines-a-patient-group-with-characteristic-traits-and-an-increased-probability-of-brown-fat-redetection
#3
Carlos Gerngroß, Johanna Schretter, Martin Klingenspor, Markus Schwaiger, Tobias Fromme
Brown adipose tissue (BAT) provides a means of non-shivering thermogenesis. In humans, active BAT can be visualized by (18)F-fluoro-desoxyglucose (FDG) uptake as detected by positron emission tomography (PET) combined with computer tomography (CT). The retrospective analysis of clinical scans is a valuable source to identify anthropometric parameters that influence BAT mass and activity and thus the potential efficacy of envisioned drugs targeting this tissue to treat metabolic disease. We analyzed 2854 FDG-PET/CT scans from 1644 patients and identified 98 scans from 81 patients with active BAT...
January 19, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28088309/-new-therapy-outlooks-in-hodgkin-lymphoma
#4
REVIEW
Cédric Rossi, René-Olivier Casasnovas
Classical Hodgkin lymphoma (HL) is a curable disease in 80% of advanced and 90% of localized stages. An improvement of the HL curability is still possible with the emergence of first-line therapy with a better balance between efficacy and toxicity and early identification patients with high risk of failure requiring specific treatment. 18FDG PET-CT gained a major role in the baseline staging and response assessment to HL treatment. The prognostic value of early PET-CT allowed to develop PET-CT guided therapies able to optimize the balance between efficacy and toxicity including the modulation of the chemotherapy intensity or the omission of radiotherapy for some localized diseases...
February 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28047500/su-g-iep4-07-feasibility-of-low-dose-18fdg-pet-in-pediatric-oncology-patients
#5
J Zhang, K Binzel, N C Hall, M Natwa, M I Knopp, M V Knopp
PURPOSE: To evaluate and demonstrate the feasibility of low dose FDG PET in pediatric oncology patients using virtual dose reduction as well as true patients PET/CT scans. METHODS: Wholebody 18F-FDG PET/CT of 39 clinical pediatric patients (0.16±0.06MBq/kg) were scanned on a Gemini TF 64 system at 75±5 min post FDG injection using 3min/bed. Based on the 180s/bed listmode PET data, subsets of total counts in 120s, 90s, 60s, 30s and 15s per bed position were extracted for PET reconstruction to simulate lower dose PET at 2/3th, 1/2th, 1/3th, 1/6th and 1/12th dose levels...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28027743/igg4-related-cardiovascular-disease-the-emerging-role-of-cardiovascular-imaging
#6
REVIEW
Sophie Mavrogeni, George Markousis-Mavrogenis, Genovefa Kolovou
Immunoglobulin 4-related disease (IgG4-related disease) is a systemic inflammatory disease that presents with increases of serum IgG4. It may affect various systems, including the cardiovascular (CV) system. Assessment of serum IgG4 levels and involved organ biopsy are necessary for diagnosis. IgG4-related disease is characterized by fibrosclerosis, lymphocytic infiltration and presence of IgG4-positive plasma cells. The disease usually responds to treatment with corticosteroids and/or immunosuppressive medication...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/27900757/unsuspected-axillary-lymph-node-metastasis-of-nasopharyngeal-and-cervical-cancer-on-18fdg-pet-ct-a-case-report
#7
Sungmin Kang
Axillary lymph node metastasis (ALNM) from cancer except breast cancer is rare. Whole body 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) that simultaneously offers anatomic and metabolic information is widely used and has become an effective modality in many clinical fields, especially oncology, and also may detect an unexpected metastasis. We report two cases of ALMN of nasopharyngeal and cervical cancer that was detected on whole body PET/CT.
2016: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/27847118/cap-inflammation-leads-to-higher-plaque-cap-strain-and-lower-cap-stress-an-mri-pet-ct-based-fsi-modeling-approach
#8
Dalin Tang, Chun Yang, Sarayu Huang, Venkatesh Mani, Jie Zheng, Pamela K Woodard, Philip Robson, Zhongzhao Teng, Marc Dweck, Zahi A Fayad
Plaque rupture may be triggered by extreme stress/strain conditions. Inflammation is also implicated and can be imaged using novel imaging techniques. The impact of cap inflammation on plaque stress/strain and flow shear stress were investigated. A patient-specific MRI-PET/CT-based modeling approach was used to develop 3D fluid-structure interaction models and investigate the impact of inflammation on plaque stress/strain conditions for better plaque assessment. 18FDG-PET/CT and MRI data were acquired from 4 male patients (average age: 66) to assess plaque characteristics and inflammation...
January 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/27832654/predictive-and-prognostic-value-of-early-disease-progression-by-pet-evaluation-in-advanced-non-small-cell-lung-cancer
#9
Giuseppe Luigi Banna, Giuseppe Anile, Giorgio Russo, Paolo Vigneri, Marine Castaing, Maurizio Nicolosi, Salvatore Strano, Stefania Gieri, Rosaria Spina, Domenico Patanè, Giacomo Calcara, Filippo Fraggetta, Francesco Marletta, Alessandro Stefano, Massimo Ippolito
OBJECTIVE: To assess the predictive and prognostic value of progressive metabolic disease (PMD) by the use of early 18Fluorodeoxyglucose positron emission tomography (18FDG-PET) in patients with clinical stage IV non-small cell lung cancer (NSCLC) treated with first-line chemotherapy. METHODS: An 18FDG-PET performed following the first cycle of chemotherapy (PET-1) was compared with a pretreatment 18FDG-PET (PET-0) and a computed tomography (CT) scan after the third cycle (CT-3)...
2017: Oncology
https://www.readbyqxmd.com/read/27814341/association-between-microrna-125a-rs12976445-c-t-polymorphism-and-18f-fluorodeoxyglucose-18fdg-uptake-clinical-and-metabolic-response-in-patients-with-non-small-cell-lung-cancer
#10
Zhina Zang, Wenhua Guan, Diansen Chen, Yan Han, Zhan Shi, Jinjin Zhou
BACKGROUND MicroRNA-125a (miR-125a) has been involved with many diseases, such as hepatocellular carcinoma and inflammation. In this study, we aimed to investigate the molecular mechanism, including the potential regulator and signaling pathways, of vascular endothelial growth factor (VEGF). MATERIAL AND METHODS We divided the participants into 3 groups by rs12976445 genotype and performed chi-square tests to evaluate the differences between CC and CT+TT groups for sex, age, grading, pT category, metastases, and fludeoxyglucose F18 injection (18FDG) metabolism...
November 4, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27796544/the-intensity-of-18fdg-uptake-does-not-predict-tumor-growth-in-patients-with-metastatic-differentiated-thyroid-cancer
#11
Marie Terroir, Isabelle Borget, François Bidault, Marcel Ricard, Frédéric Deschamps, Dana Hartl, Lambros Tselikas, Laurent Dercle, Jean Lumbroso, Eric Baudin, Amandine Berdelou, Désirée Deandreis, Martin Schlumberger, Sophie Leboulleux
PURPOSE: In patients with metastatic differentiated thyroid carcinoma (DTC), fluorodeoxyglucose (FDG) uptake as well as age, tumor size and radioactive iodine (RAI) uptake are prognostic factors for survival. High FDG uptake is a poor prognostic factor and lesions with high FDG uptake are often considered aggressive, but the predictive value of FDG uptake for morphological progression is unknown. The principal aim of this retrospective single center study was to determine whether the intensity of FDG uptake was correlated on a per lesion analysis with tumor growth rate (TGR) expressed as the percentage of increase in tumor size during 1 year (1-year TGR)...
October 29, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27732127/optimal-gross-tumor-volume-definition-in-lung-sparing-intensity-modulated-radiotherapy-for-pleural-mesothelioma-an-in-silico-study
#12
Angela Botticella, Gilles Defraene, Kristiaan Nackaerts, Christophe M Deroose, Johan Coolen, Philippe Nafteux, Stephanie Peeters, Umberto Ricardi, Dirk De Ruysscher
BACKGROUND: The gross tumor volume (GTV) definition for malignant pleural mesothelioma (MPM) is ill-defined. We therefore investigated which imaging modality is optimal: computed tomography (CT) with intravenous contrast (IVC), positron emission tomography-CT (PET/CT) or magnetic resonance imaging (MRI). MATERIAL AND METHODS: Sixteen consecutive patients with untreated stage I-IV MPM were included. Patients with prior pleurodesis were excluded. CT with IVC, 18FDG-PET/CT and MRI (T2 and contrast-enhanced T1) were obtained...
December 2016: Acta Oncologica
https://www.readbyqxmd.com/read/27716240/salvage-surgery-for-local-failures-after-stereotactic-ablative-radiotherapy-for-early-stage-non-small-cell-lung-cancer
#13
Naomi E Verstegen, Alexander P W M Maat, Frank J Lagerwaard, Marinus A Paul, Michel I Versteegh, Joris J Joosten, Willem Lastdrager, Egbert F Smit, Ben J Slotman, Joost J M E Nuyttens, Suresh Senan
INTRODUCTION: The literature on surgical salvage, i.e. lung resections in patients who develop a local recurrence following stereotactic ablative radiotherapy (SABR), is limited. We describe our experience with salvage surgery in nine patients who developed a local recurrence following SABR for early stage non-small cell lung cancer (NSCLC). METHODS: Patients who underwent surgical salvage for a local recurrence following SABR for NSCLC were identified from two Dutch institutional databases...
October 3, 2016: Radiation Oncology
https://www.readbyqxmd.com/read/27688726/primary-mediastinal-b-cell-lymphoma-metabolic-and-anatomical-features-in-18fdg-pet-ct-and-response-to-therapy
#14
Anna Kocurek, Bogdan Małkowski, Agnieszka Giza, Wojciech Jurczak
AIM OF THE STUDY: Determining the role of PET/CT imaging in the evaluation of treatment efficacy in primary mediastinal B-cell lymphoma (PMBCL). MATERIAL AND METHODS: Retrospective analysis of seven PMBCL patients, treated at the University Hospital in Krakow, with interim PET/CT after the third course of chemo-immunotherapy.The analysis was based on the calculation of exact tumour volume and metabolic activity, compared with initial values (directly after diagnosis)...
2016: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/27619910/18fdg-pet-ct-a-useful-tool-for-the-management-of-patients-in-infectious-diseases
#15
Maud Pichon, Nidaa Mikail, Khadija Ben Ali, François Rouzet, Charles Burdet, Yazdan Yazdanpanah, Veronique Joly, Laurent Lepage, Laure Sarda-Mantel
No abstract text is available yet for this article.
February 2017: Infectious Diseases
https://www.readbyqxmd.com/read/27610625/familiarity-to-a-feed-additive-modulates-its-effects-on-brain-responses-in-reward-and-memory-regions-in-the-pig-model
#16
David Val-Laillet, Paul Meurice, Caroline Clouard
Brain responses to feed flavors with or without a feed additive (FA) were investigated in piglets familiarized or not with this FA. Sixteen piglets were allocated to 2 dietary treatments from weaning until d 37: the naive group (NAI) received a standard control feed and the familiarized group (FAM) received the same feed added with a FA mainly made of orange extracts. Animals were subjected to a feed transition at d 16 post-weaning, and to 2-choice feeding tests at d 16 and d 23. Production traits of the piglets were assessed up to d 28 post-weaning...
2016: PloS One
https://www.readbyqxmd.com/read/27583555/effects-of-chronic-consumption-of-sugar-enriched-diets-on-brain-metabolism-and-insulin-sensitivity-in-adult-yucatan-minipigs
#17
Melissa Ochoa, Charles-Henri Malbert, Paul Meurice, David Val-Laillet
Excessive sugar intake might increase the risk to develop eating disorders via an altered reward circuitry, but it remains unknown whether different sugar sources induce different neural effects and whether these effects are dependent from body weight. Therefore, we compared the effects of three high-fat and isocaloric diets varying only in their carbohydrate sources on brain activity of reward-related regions, and assessed whether brain activity is dependent on insulin sensitivity. Twenty-four minipigs underwent 18FDG PET brain imaging following 7-month intake of high-fat diets of which 20% in dry matter weight (36...
2016: PloS One
https://www.readbyqxmd.com/read/27561787/pulmonary-hyalinizing-granuloma-a-multicenter-study-of-5-new-cases-and-review-of-the-135-cases-of-the-literature
#18
Raphael Lhote, Julien Haroche, Loïc Duron, Nicolas Girard, Marie Pierre Lafourcade, Michel Martin, Hugues Begueret, André Taytard, Frédérique Capron, Philippe Grenier, Jean Charles Piette, Fleur Cohen-Aubart, Zahir Amoura
Pulmonary hyalinizing granuloma (PHG) is a rare disease characterized by single or multiple benign lung nodules mimicking lung neoplasma. Histologic analysis reveals homogenous hyaline lamellae, usually surrounded by collection of plasma cells, lymphocytes and histiocytes in a perivascular distribution. The clinical and radiological findings have been described in small series, but the long-term outcomes have rarely been reported. The objectives were to describe the clinical, radiological and outcomes of PHG in new cases and through a literature review...
August 25, 2016: Immunologic Research
https://www.readbyqxmd.com/read/27509993/significantly-low-effective-dose-from-18fdg-pet-ct-scans-using-dose-reducing-strategies-lesser-is-better
#19
Maseeh Uz Zaman, Nosheen Fatima, Areeba Zaman, Unaiza Zaman, Rabia Tahseen
BACKGROUND: Fluorodeoxyglucose (18FDG) PET/CT imaging has become an important component of the management paradigm in oncology. However, the significant imparted radiation exposure is a matter of growing concern especially in younger populations who have better odds of survival. The aim of this study was to estimate the effective dose received by patients having whole body 18FFDG PET/CT scanning as per recent dose reducing guidelines at a tertiary care hospital. MATERIALS AND METHODS: This prospective study covered 63 patients with different cancers who were referred for PET/CT study for various indications...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27440185/pet-radiopharmaceuticals-for-personalized-medicine
#20
Sushil Sharma
Recent advances in the self-shielded cyclotrons, improved targets, videomonitored hot cells design, and automated PET radiopharmaceutical (RPs) synthesis modules, utilizing computer-controlled graphic user interphase (GUI) has revolutionized PET molecular imaging technology for basic biomedical research and theranostics to accomplish the ultimate goal of evidence-based personalized medicine. Particularly, [18F]HX4: (3-[18F]fluoro-2-(4-((2-nitro-1Himidazol-1-yl)methyl)-1H-1,2,3,-triazol-1- yl)-propan-1-ol), 18F-FAZA: 1-(5-[18F]Fluoro-5-deoxy-α-D-arabinofuranosyl)-2- nitroimidazole, and 18F-FMSIO: 18F-Ffluoromisonidazole to assess tumor hypoxia, [18F]FB-VAD-FMK: [18F]4-fluorobenzylcarbonyl-Val-Ala-Asp(OMe)-fluoromethylketone to determine in vivo apoptosis, 64Cu-PTSM: 64Cu-Pyrualdehyde Bis-NMethylthiosemicarbazone for brain and myocardial perfusion imaging, and 68Ga-DOTATOC: 68Ga- DOTAD-Phy1-Tyr3-octreotide and 68Ga-DOTANOC: 68Ga-(1,4,7,10-tetraazacyclododecane- N,N',N'',N'''-tetraacetic acid)-1-NaI3-octreotide for neuroendocrine and neural crest tumors have demonstrated great promise in personalized theranostics...
2016: Current Drug Targets
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