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https://www.readbyqxmd.com/read/28098664/pancreatic-cancer-complicated-by-pancreatitis-demonstrated-on-fdg-pet-ct
#1
Grace Hennessy, Shankar Vamadevan, Han Loh, Chuong Bui, Ken Le, Robert Mansberg
A 73-year-old man was referred for F-FDG PET/CT study for staging of biopsy-proven pancreatic adenocarcinoma. The scan demonstrated focal intense FDG uptake in the pancreatic head, localizing the primary tumor. Additional moderate diffuse uptake was seen throughout the pancreas, suggestive of acute pancreatitis. Concurrent diagnostic CT showed diffuse pancreatic hypoenhancement consistent with edema. Serum lipase level was elevated, confirming a diagnosis of acute pancreatitis.
January 16, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28098663/adenosquamous-carcinoma-of-the-pancreas-demonstrated-on-18f-fdg-pet-ct-imaging
#2
Lei Jiang, Hongting Nie, Lei Zhu, Yan Xiu, Hongcheng Shi
A 69-year-old woman had gradually worsening abdominal discomfort over a year. A pancreatic mass was revealed by abdominal CT. The patient underwent FDG PET/CT for staging, which demonstrated the hypermetabolic pancreatic mass with multiple liver metastases. The lesion was pathologically confirmed as pancreatic adenosquamous carcinoma after biopsy.
January 16, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28097534/successful-treatment-with-low-dose-nivolumab-in-refractory-hodgkin-lymphoma-after-allogeneic-stem-cell-transplantation
#3
Makoto Onizuka, Minoru Kojima, Keiko Matsui, Shinichiro Machida, Masako Toyosaki, Yasuyuki Aoyama, Hidetsugu Kawai, Jun Amaki, Ryujiro Hara, Akifumi Ichiki, Yoshiaki Ogawa, Hiroshi Kawada, Naoya Nakamura, Kiyoshi Ando
Previous studies have reported that an antibody that blocks programmed cell death 1 (PD-1) has therapeutic activity in patients with refractory/relapsed Hodgkin lymphoma (HL). However, the safety and efficacy of these agents in the post-allogeneic stem cell transplantation (allo-SCT) setting are not well known. Here, we describe a patient who was diagnosed as classical HL and treated with five regimens of chemotherapies with autologous SCT. Complete remission (CR) was not achieved following this initial treatment, so we performed allo-SCT from an HLA-matched sibling donor...
January 17, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28097205/impact-of-tau-and-amyloid-burden-on-glucose-metabolism-in-alzheimer-s-disease
#4
Gérard N Bischof, Frank Jessen, Klaus Fliessbach, Julian Dronse, Jochen Hammes, Bernd Neumaier, Oezguer Onur, Gereon R Fink, Juraj Kukolja, Alexander Drzezga, Thilo van Eimeren
In a multimodal PET imaging approach, we determined the differential contribution of neurofibrillary tangles (measured with [(18)F]AV-1451) and beta-amyloid burden (measured with [(11)C]PiB) on degree of neurodegeneration (i.e., glucose metabolism measured with [(18)F]FDG-PET) in patients with Alzheimer's disease. Across brain regions, we observed an interactive effect of beta-amyloid burden and tau deposition on glucose metabolism which was most pronounced in the parietal lobe. Elevated beta-amyloid burden was associated with a stronger influence of tau accumulation on glucose metabolism...
December 2016: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28095018/hallway-conversations-in-physicswhat-is-the-typical-effective-dose-from-a-routine-eye-to-thigh-pet-ct-examination-assuming-an-injected-18-f-fdg-dose-of-370-mbq
#5
Shalmali Dharmadhikari, James R Galt, Jonathon A Nye
No abstract text is available yet for this article.
January 17, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28095016/renal-masses-detected-on-fdg-pet-ct-in-patients-with-lymphoma-imaging-features-differentiating-primary-renal-cell-carcinomas-from-renal-lymphomatous-involvement
#6
Carlos Nicolau, Evis Sala, Anita Kumar, Debra A Goldman, Heiko Schoder, Hedvig Hricak, Hebert Alberto Vargas
OBJECTIVE: The purpose of this study is to analyze the (18)F-FDG PET/CT features of solid renal masses detected in patients with lymphoma and to evaluate the ability of PET/CT to differentiate renal cell carcinoma (RCC) from renal lymphomatous involvement. MATERIALS AND METHODS: Thirty-six patients with solid renal masses on PET/CT performed for staging or follow-up of lymphoma were evaluated retrospectively. The features recorded for each renal mass included the following standardized uptake values (SUVs) on PET/CT: the maximum SUV (SUVmax), the mean SUV (SUVmean), the ratio of the SUVmax of the tumor to that of the normal kidney cortex, the ratio of the SUVmean of the tumor to that of the normal kidney cortex, the ratio of the SUVmax of the tumor to that of the normal liver, and the ratio of the SUVmean of the tumor to that of the normal liver...
January 17, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28094665/fdg-pet-reproducibility-in-tumor-bearing-mice-comparing-a-traditional-suv-approach-with-a-tumor-to-brain-tissue-ratio-approach
#7
Morten Busk, Ole L Munk, Steen Jakobsen, Jørgen Frøkiær, Jens Overgaard, Michael R Horsman
BACKGROUND: Current [F-18]-fluorodeoxyglucose positron emission tomography (FDG-PET) procedures in tumor-bearing mice typically includes fasting, anesthesia, and standardized uptake value (SUV)-based quantification. Such procedures may be inappropriate for prolonged multiscan experiments. We hypothesize that normalization of tumor FDG retention relative to a suitable reference tissue may improve accuracy as this method may be less susceptible to uncontrollable day-to-day changes in blood glucose levels, physical activity, or unnoticed imperfect tail vein injections...
January 17, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28093719/metabolic-nodal-response-as-a-prognostic-marker-after-neoadjuvant-therapy-for-oesophageal-cancer
#8
J M Findlay, K M Bradley, L M Wang, J M Franklin, E J Teoh, F V Gleeson, N D Maynard, R S Gillies, M R Middleton
BACKGROUND: The ability to predict recurrence and survival after neoadjuvant chemotherapy (NAC) and surgery for oesophageal cancer remains elusive. This study evaluated the role of [(18) F]fluorodeoxyglucose (FDG) PET-CT in assessing tumour and nodal response as a prognostic marker. METHODS: This was a single-centre UK cohort study. From 2006 to 2014, patients with oesophageal cancer staged with PET-CT before NAC, and restaged by CT or PET-CT before resection, were included...
January 17, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28092995/fdg-pet-in-follicular-lymphoma-more-than-a-staging-test
#9
Aravind S Ravi Kumar, Constantine Tam, Michael S Hofman
No abstract text is available yet for this article.
January 16, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28091978/patient-specific-optimisation-of-administered-activity-and-acquisition-times-for-18-f-fdg-pet-imaging
#10
Fred Wickham, Helena McMeekin, Maria Burniston, Daniel McCool, Deborah Pencharz, Annah Skillen, Thomas Wagner
BACKGROUND: The purpose of this study is to identify a method for optimising the administered activity and acquisition time for (18)F-FDG PET imaging, yielding images of consistent quality for patients with varying body sizes and compositions, while limiting radiation doses to patients and staff. Patients referred for FDG scans had bioimpedance measurements. They were injected with 3 MBq/kg of (18)F up to 370 MBq and scanned on a Siemens Biograph mCT at 3 or 4 min per bed position...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28091733/post-treatment-pet-ct-and-p16-status-for-predicting-treatment-outcomes-in-locally-advanced-head-and-neck-cancer-after-definitive-radiation
#11
Musaddiq J Awan, Pierre Lavertu, Chad Zender, Rod Rezaee, Nicole Fowler, Lilit Karapetyan, Michael Gibson, Jay Wasman, Peter Faulhaber, Mitchell Machtay, Min Yao
PURPOSE: To retrospectively review post-treatment (post-tx) FDG-PET/CT scans in patients with advanced head and neck squamous cell carcinoma (HNSCC) and known p16 status, treated with definitive (chemo)radiation (RT). METHODS: A total of 108 eligible patients had N2A or greater HNSCC treated with chemoRT from August 1, 2008, to February 28, 2015, with post-tx PET/CT within 6 months after RT. Kaplan-Meier curves, log-rank statistics, and Cox proportional hazards regression were used for statistical analysis...
January 14, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28091565/-18-f-flt-and-18-f-fdg-pet-ct-in-predicting-response-to-chemoradiotherapy-in-nasopharyngeal-carcinoma-preliminary-results
#12
Shi Qi, Yang Zhongyi, Zhang Yingjian, Hu Chaosu
The purpose of this study was to explore the feasibility of (18)F-Fluorothymidine ((18)F-FLT) and (18)F-Fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) in predicting treatment response of nasopharyngeal carcinoma (NPC). Patients with NPC of Stage II-IVB were prospectively enrolled, receiving 2 cycles of neoadjuvant chemotherapy (NACT), followed by concurrent chemoradiotherapy. Each patient underwent pretreatment and post-NACT FLT PET/CT and FDG PET/CT. Standard uptake values (SUV) and tumor volume were measured...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090641/in-vivo-quantitative-assessment-of-the-therapeutic-response-in-a-mouse-model-of-collagen-induced-arthritis-using-18-f-fluorodeoxyglucose-positron-emission-tomography
#13
Anupam Mitra, Smriti Kundu-Raychaudhuri, Christine Abria, Angelica Rona, Abhijit J Chaudhari, Siba P Raychaudhuri
BACKGROUND: Mouse collagen induced arthritis (CIA) is the most commonly used animal model to investigate underlying pathogenesis of autoimmune arthritis and to demonstrate therapeutic efficacy of novel drugs in autoimmune arthritis. The conventional read out of CIA are clinical score and histopathology, which have several limitations including (i) subjected to observer bias; (ii) longitudinal therapeutic efficacy of a new drug cannot be determined. Thus a robust, non-invasive, in vivo drug screening tool is currently an unmet need...
January 16, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28090627/fdg-pet-for-early-response-assessment-in-lymphomas-part-2-diffuse-large-b-cell-lymphoma-use-of-quantitative-pet-evaluation
#14
REVIEW
Bruce D Cheson, Lale Kostakoglu
In Part 1, we reviewed the role of interim positron emission tomography (PET)/CT scans in Hodgkin lymphoma. In advanced Hodgkin lymphoma, interim PET is a useful prognostic tool that can be used to implement risk-adapted therapy with potential benefits for both patients who have negative interim scans and those whose scans are positive. Interim PET/CT has not shown as encouraging results in diffuse large B-cell lymphoma (DLBCL), with the exception of germinal center B-cell DLBCL. Thus, quantitative methods of interpreting interim PET scans have been pursued in an effort to improve their predictive value...
January 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28090622/fdg-pet-for-early-response-assessment-in-lymphomas-part-1-hodgkin-lymphoma
#15
REVIEW
Bruce D Cheson, Lale Kostakoglu
Interim positron emission tomography (PET)/CT has shown encouraging results when used as a prognostic tool early in the course of treatment of advanced Hodgkin lymphoma, allowing for a reduction in treatment for patients with favorable characteristics, while suggesting a benefit from changing therapy for those with a positive scan. For patients with limited disease, a negative scan allows for a decrease in treatment; however, the benefits for those patients whose scans are positive are less certain. Here we critically analyze the role of PET/CT in the early assessment of Hodgkin lymphoma...
January 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28089955/is-integrated-18f-fdg-pet-mri-superior-to-18f-fdg-pet-ct-in-the-differentiation-of-incidental-tracer-uptake-in-the-head-and-neck-area
#16
Benedikt Michael Schaarschmidt, Benedikt Gomez, Christian Buchbender, Johannes Grueneisen, Felix Nensa, Lino Morris Sawicki, Verena Ruhlmann, Axel Wetter, Gerald Antoch, Philipp Heusch
PURPOSE: We aimed to investigate the accuracy of 18F-fluorodeoxyglucose positron emission tomography/magnetic resonance imaging (18F-FDG PET/MRI) compared with contrast-enhanced 18F-FDG PET/computed tomography (PET/CT) for the characterization of incidental tracer uptake in examinations of the head and neck. METHODS: A retrospective analysis of 81 oncologic patients who underwent contrast-enhanced 18F-FDG PET/CT and subsequent PET/MRI was performed by two readers for incidental tracer uptake...
January 16, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28088288/a-novel-mouse-model-of-staphylococcus-aureus-vascular-graft-infection-noninvasive-imaging-of-biofilm-development-in%C3%A2-vivo
#17
Hélène Van de Vyver, Philipp R Bovenkamp, Verena Hoerr, Katrin Schwegmann, Lorena Tuchscherr, Silke Niemann, Laura Kursawe, Christina Grosse, Annette Moter, Uwe Hansen, Ute Neugebauer, Michael T Kuhlmann, Georg Peters, Sven Hermann, Bettina Löffler
Staphylococcus aureus causes very serious infections of vascular grafts. Knowledge of the molecular mechanisms of this disease is largely lacking because of the absence of representable models. Therefore, the aim of this study was to set up a mouse model of vascular graft infections that closely mimics the human situation. A catheter was inserted into the right carotid artery of mice, which acted as a vascular graft. Mice were infected i.v. using 8 different S. aureus strains, and development of the infection was followed up...
January 4, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28079858/reticuloendothelial-system-involvement-in-untreated-sarcoidosis-patients-as-assessed-by-18f-fdg-pet-scanning
#18
Alexandros Kalkanis, Marc A Judson, Dimitrios Kalkanis, George D Vavougios, Julia Malamitsi, Evangelos Georgou
Not available.
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28079849/role-of-serial-f-18-fdg-pet-ct-scans-in-assessing-treatment-response-and-predicting-relapses-in-patients-with-symptomatic-sarcoidosis
#19
Venkata Nagarjuna Maturu, Sampanna Jung Rayamajhi, Ritesh Agarwal, Ashutosh Nath Aggarwal, Dheeraj Gupta, Bhagwant Rai Mittal
: ackground: Monitoring disease activity in sarcoidosis remains a clinical challenge as there is no gold standard. Positron emission tomography (PET) imaging is a novel tool to assess the metabolic activity. There is limited data on the role of serial PET scans in monitoring the disease activity. METHODS: This is a prospective study of 27 sarcoidosis patients treated with systemic corticosteroids. Patients underwent two serial PET/CT scans: one before initiating therapy and the follow up scan at end of therapy...
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28079829/breath-hold-and-free-breathing-f-18-fdg-pet-ct-in-malignant-melanoma-detection-of-additional-tumoral-foci-and-effects-on-quantitative-parameters
#20
Robert Bärwolf, Mariana Zirnsak, Martin Freesmeyer
During PET/CT acquisition, respiratory motion generates artifacts in the form of breath-related blurring, which may impair lesion detectability and diagnostic accuracy. This observational study was undertaken to verify whether breath-hold F-18-FDG-PET/CT (bhPET) detects additional foci compared to free-breathing PET/CT (fbPET) in cases of malignant melanoma, and to assess the impact of breath-holding on standard uptake values (SUV) and metabolic isocontoured volume (mVic40).Thirty-four patients with melanoma were examined...
January 2017: Medicine (Baltimore)
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