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https://www.readbyqxmd.com/read/28323232/suspected-giant-cell-aortitis-from-multiple-aortic-structural-damage-to-fatal-listeria-sepsi-a-case-report
#1
Valeria Silvestri, Giacomo Isernia
Giant cell arteritis ( GCA) is an inflammatory vasculopathy affecting large and middle-sized vessels , specifically cranial arteries derived from carotid artery. Isolated extracranial vessel involvement can occur. Interest in extravascular manifestations is recently increasing because of diffusion of sensitive and specific imaging tools such as 18FDG PET TC . Patients have an increased relative risk of severe infection. Listeria monocytogenes infection risk is increased, and vascular system involvement and graft infection have been, even though rarely, reported...
March 16, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28320460/thyroid-incidentalomas-on-18fdg-pet-ct-a-metabolico-pathological-correlation
#2
N Hagenimana, J Dallaire, É Vallée, M Belzile
BACKGROUND: Thyroid incidentaloma is defined as an unsuspected thyroid lesion found on imaging study or while performing a surgery non-related to the thyroid gland. Most recent scientific literature tends to demonstrate a detection rate of 0.1-4.3% for incidental findings of thyroid focal uptake identified by (18)F-fluorodeoxyglugose Positron Emission Tomography with computed tomography ((18)FDG-PET/CT) initially prescribed for nonthyroid disease. From 10.3 to 80.0% of patients who underwent further evaluation are diagnosed with malignant lesions...
March 21, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28319241/alzheimer-disease-signature-neurodegeneration-and-apoe-genotype-in-mild-cognitive-impairment-with-suspected-non-alzheimer-disease-pathophysiology
#3
Stefanie Schreiber, Frank Schreiber, Samuel N Lockhart, Andy Horng, Alexandre Bejanin, Susan M Landau, William J Jagust
Importance: There are conflicting results claiming that Alzheimer disease signature neurodegeneration may be more, less, or similarly advanced in individuals with β-amyloid peptide (Aβ)-negative (Aβ-) suspected non-Alzheimer disease pathophysiology (SNAP) than in Aβ-positive (Aβ+) counterparts. Objective: To examine patterns of neurodegeneration in individuals with SNAP compared with their Aβ+ counterparts. Design, Setting, and Participants: A longitudinal cohort study was conducted among individuals with mild cognitive impairment (MCI) and cognitively normal individuals receiving care at Alzheimer's Disease Neuroimaging Initiative sites in the United States and Canada for a mean follow-up period of 30...
March 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28315916/muscular-damage-in-a-patient-with-hepatitis-b-induced-by-beta-l-2-deoxythymidine-and-detected-by-18-f-fdg-pet-ct
#4
Jinhua Zi, Changyun Xu, Xuemei Zhang
A 58 years old man under 2'-Deoxy-L-thymidine treatment for his hepatitis B was admitted to our hospital complaining for the last 2 months of recurrent upper abdomen discomfort, fatigue and weight loss of 10 kilograms and general muscular soreness, for 2 weeks. He had elevated creatine kinase (CK), myoglobin, CK-MB and other related or common laboratory findings. Fluorine-18- fluorodeoxyglucose positron emission tomography/ computed tomography ((18)F-FDG PET/CT) showed a diffuse, homogenous, moderately elevated glucose uptake in all muscle groups...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28281382/elevated-glycemia-and-brain-glucose-utilization-predict-bdnf-lowering-since-early-life
#5
Maria Angela Guzzardi, Elena Sanguinetti, Antonietta Bartoli, Alessandra Kemeny, Daniele Panetta, Piero A Salvadori, Silvia Burchielli, Patricia Iozzo
Obesity and diabetes associate with neurodegeneration. Brain glucose and BDNF are fundamental in perinatal development. BDNF is related to brain health, food intake and glucose metabolism. We characterized the relationship between glycemia and/or brain glucose utilization (by (18)FDG-PET during fasting and glucose loading), obesity and BDNF in 4-weeks old (pre-obese) and 12-weeks old (obese) Zucker fa/fa rats, and their age-matched fa/+ controls. In 75 human infants, we assessed cord blood BDNF and glucose levels, appetite regulating hormones, body weight and maternal factors...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28266002/voxel-based-mapping-of-grey-matter-volume-and-glucose-metabolism-profiles-in-amyotrophic-lateral-sclerosis
#6
M-S Buhour, F Doidy, A Mondou, A Pélerin, L Carluer, F Eustache, F Viader, B Desgranges
BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a rapidly progressive disease of the nervous system involving both upper and lower motor neurons. The patterns of structural and metabolic brain alterations are still unclear. Several studies using anatomical MRI yielded a number of discrepancies in their results, and a few PET studies investigated the effect of ALS on cerebral glucose metabolism. The aim of this study was threefold: to highlight the patterns of grey matter (GM) atrophy, hypometabolism and hypermetabolism in patients with ALS, then to understand the neurobehavioral significance of hypermetabolism and, finally, to investigate the regional differences between the morphologic and functional changes in ALS patients, using a specially designed voxel-based method...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28259450/modality-specific-target-definition-for-laryngeal-and-hypopharyngeal-cancer-on-fdg-pet-ct-and-mri
#7
Hans Ligtenberg, Elise Anne Jager, Joana Caldas-Magalhaes, Tim Schakel, Frank A Pameijer, Nicolien Kasperts, Stefan M Willems, Chris H J Terhaard, Cornelis P J Raaijmakers, Marielle E P Philippens
BACKGROUND AND PURPOSE: The goal of this study was to improve target definition by deriving modality-specific margins for clinical target volumes (CTV) for laryngeal and hypopharyngeal cancer on CT, MRI and 18-FDG-PET. MATERIAL AND METHODS: Twenty-five patients with T3/T4 laryngeal/hypopharyngeal cancer underwent CT, MRI and 18-FDG-PET scans before laryngectomy. HE-sections were obtained from the surgical specimen and tumor was delineated (tumorHE). The GTVs on CT and MRI were delineated in consensus...
March 1, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28250861/correlation-of-molecular-subtypes-of-invasive-ductal-carcinoma-of-breast-with-glucose-metabolism-in-fdg-pet-ct-based-on-the-recommendations-of-the-st-gallen-consensus-meeting-2013
#8
Sun Seong Lee, Sang Kyun Bae, Yun Soo Park, Ji Sun Park, Tae Hyun Kim, Hye Kyoung Yoon, Hyo Jung Ahn, Seok Mo Lee
PURPOSE: This study aimed to investigate the relationship between the SUVmax of primary breast cancer lesions and the molecular subtypes based on the recommendations of the St. Gallen consensus meeting 2013. METHODS: Clinical records of patients who underwent F-18 FDG PET/CT for initial staging of invasive ductal carcinoma (IDC) of the breast were reviewed. A total of 183 patients were included. SUVmax was correlated with the molecular subtypes defined by the St...
March 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28250860/the-role-of-f-18-fdg-pet-ct-in-intrahepatic-cholangiocarcinoma
#9
Yeongjoo Lee, Ie Ryung Yoo, Sun Ha Boo, Hyoungwoo Kim, Hye Lim Park, Joo Hyun O
PURPOSE: The aim of this study was to evaluate the diagnostic and prognostic role of metabolic parameters of FDG PET/CT in patients with intrahepatic cholangiocarcinoma (ICC). METHODS: From December 2008 to December 2013, 76 FDG PET/CT scans performed for initial staging of ICC in a single institution (57 male and 19 female; mean age 68 ± 9 years) were retrospectively reviewed. Patients with history of other known malignancy were excluded. Detection rates of regional lymph node and distant metastasis by FDG PET/CT were analyzed in comparison with conventional imaging modalities such as CT or MRI...
March 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28245047/18-fdg-pet-ct-to-reveal-cardiac-metastasis-of-pancreatic-neuroendocrine-cancer
#10
Dariusz Jagielak, Milosz Jaguszewski, Jan Rogowski, Renata Zaucha
No abstract text is available yet for this article.
2017: Cardiology Journal
https://www.readbyqxmd.com/read/28242984/dual-tracer-pet-imaging-68ga-dotatate-and-18f-fdg-features-in-pulmonary-carcinoid-correlation-with-tumor-proliferation-index
#11
Dhiraj Bhatkar, Ketaki Utpat, Sandip Basu, Jyotsna M Joshi
Pulmonary carcinoid tumors are rare group of lung neoplasms representing 1% of all the lung tumors. The typical bronchial carcinoids showed higher and more selective uptake of (68)Ga-DOTATATE than of (18)F-FDG on PET-CT. The Ki-67(MIB-1), a tumor proliferation index is a prognostic marker in neuroendocrine tumors for estimating tumor progression. Atypical carcinoids have higher Ki-67 index and have an increased propensity to metastasize as compared to typical ones. (68)Ga-DOTATATE PET imaging along with Ki-67 can be correlated for better management of patients with neuroendocrine tumors...
January 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28242978/intracranial-leptomeningeal-carcinomatosis-in-three-cases-from-breast-cancer-demonstrated-on-f-18-fluorodeoxyglucose-positron-emission-tomography-computerized-tomography
#12
Hulya Ortapamuk, Mustafa Kemal Demir
Leptomeningeal carcinomatosis (LC) is an uncommon late manifestation of non-central nervous system (CNS) solid tumors. With prolonged survival in solid tumors, an increased frequency of metastases is noted in these tumors too. The detection of tumor cells in the cerebrospinal fluid remains the gold standard. Noninvasively, magnetic resonance imaging is frequently used for the diagnosis of LC. Although its low sensitivity of F-18 fluorodeoxyglucose positron emission tomography/computerized tomography (F-18 FDG PET/CT) on demonstrating CNS lesions, it could be useful in identifying the possibility of LC of breast carcinoma by giving high attention to the meninges...
January 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28237004/nuclear-medicine-in-pediatric-cardiology
#13
REVIEW
Ornella Milanesi, Giovanni Stellin, Pietro Zucchetta
Accurate cardiovascular imaging is essential for the successful management of patients with congenital heart disease (CHD). Echocardiography and angiography have been for long time the most important imaging modalities in pediatric cardiology, but nuclear medicine has contributed in many situations to the comprehension of physiological consequences of CHD, quantifying pulmonary blood flow symmetry or right-to-left shunting. In recent times, remarkable improvements in imaging equipments, particularly in multidetector computed tomography and magnetic resonance imaging, have led to the progressive integration of high resolution modalities in the clinical workup of children affected by CHD, reducing the role of diagnostic angiography...
March 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28236583/progression-free-survival-of-early-interim-pet-positive-patients-with-advanced-stage-hodgkin-s-lymphoma-treated-with-beacoppescalated-alone-or-in-combination-with-rituximab-hd18-an-open-label-international-randomised-phase-3-study-by-the-german-hodgkin-study
#14
Peter Borchmann, Heinz Haverkamp, Andreas Lohri, Ulrich Mey, Stefanie Kreissl, Richard Greil, Jana Markova, Michaela Feuring-Buske, Julia Meissner, Ulrich Dührsen, Helmut Ostermann, Ulrich Keller, Georg Maschmeyer, Georg Kuhnert, Markus Dietlein, Carsten Kobe, Hans Eich, Christian Baues, Harald Stein, Michael Fuchs, Volker Diehl, Andreas Engert
BACKGROUND: Advanced stage Hodgkin's lymphoma represents a heterogeneous group of patients with different risk profiles. Data suggests that interim PET assessment during chemotherapy is superior to baseline international prognostic scoring in terms of predicting long-term treatment outcome in patients with Hodgkin's lymphoma. We therefore hypothesised that early interim PET-imaging after two courses of bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, and prednisone (BEACOPP) might be suitable for guiding treatment in patients with advanced stage Hodgkin's lymphoma...
February 21, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28198519/correlation-of-hypoxia-inducible-transcription-factor-in-breast-cancer-and-suvmax-of-f-18-fdg-pet-ct
#15
COMPARATIVE STUDY
Young-Ju Jeong, Jae-Won Jung, Yoon-Young Cho, Sung-Hwan Park, Hoon-Kyu Oh, Sungmin Kang
BACKGROUND: Tumor hypoxia induces the expression of several genes via the hypoxia-inducible transcription factor-1 alpha (HIF-1a). It is associated with the prognosis of several cancers. We studied the immunohistochemical expression of HIF-1a in patients with invasive ductal cancer (IDC) of the breast and the possible correlation with the maximum standardized uptake value of the primary tumor (pSUVmax) as well as other biological parameters. Prognostic significance of pSUVmax and expression of HIF-1a for the prediction of progression-free survival (PFS) was also assessed...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28160263/effect-of-prolonged-fasting-and-low-molecular-weight-heparin-or-warfarin-therapies-on-2-deoxy-2-18f-fluoro-d-glucose-pet-cardiac-uptake
#16
Assuero Giorgetti, Gavino Marras, Dario Genovesi, Elena Filidei, Antonio Bottoni, Maurizio Mangione, Michele Emdin, Paolo Marzullo
BACKGROUND: Whether anticoagulants other than unfractionated heparin are able to suppress cardiac PET uptake of 2-deoxy-2-[18F]-fluoro-D-glucose (18F-FDG) is unknown. METHODS: One-hundred-seventy-four patients without history and clinical evidence of cardiac dysfunction and/or coronary heart disease underwent a 18F-FDG PET/CT study. All patients were studied with a >12-hours fasting and divided into 2 groups: group-1 without anticoagulant therapy (n:75); group-2 patients on low molecular weight heparin (n:60) or warfarin therapy (n:39)...
February 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28152944/a-single-institution-s-experience-with-the-value-of-fdg-pet-ct-imaging-in-patients-with-newly-diagnosed-stage-iib-iiib-breast-cancer
#17
Katherine Glass, Chad W Cummings, Alberto J Montero, Jame Abraham, Halle C F Moore, G Thomas Budd
123 Background: The Cleveland Clinic is utilizing disease specific teams to craft care paths for value based disease management. The report by Groheux (JNCI 2012; 104:1879-1887), reported (18) FDG-PET-CT detected distant metastasis in 10.7, 17.5 and 36.5% of stage IIB- IIIB breast cancer patients. Based on this report, the breast team incorporated (18) FDG-PET- CT imaging for initial staging of IIB-IIIB patients. METHODS: Treatment algorithms were developed by a multi-disciplinary breast cancer team...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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
#18
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...
February 2017: Medical Physics
https://www.readbyqxmd.com/read/28133291/-a-case-of-primary-splenic-inflammatory-myofibroblastic-tumor
#19
Yosuke Atsumi, Masaaki Murakawa, Koichiro Yamaoku, Toru Aoyama, Amane Kanazawa, Akio Higuchi, Manabu Shiozawa, Satoshi Kobayashi, Makoto Ueno, Manabu Morimoto, Kota Washimi, Tomoyuki Yokose, Naoto Yamamoto, Takashi Oshima, Norio Yukawa, Takaki Yoshikawa, Yasushi Rino, Munetaka Masuda, Soichiro Morinaga
Inflammatory myofibroblastic tumor(IMT)is a rare neoplasm. IMTs are found in a number of locations throughout the body, but splenic involvement is uncommon. One case of splenic IMT is described. A 42-year-old woman presented with anterior chest pain and was found to have a splenic mass by computed tomography(CT). Fluorine-18-FDG-PET showed no FDG accumulation in the spleen. Magnetic resonance imaging(MRI)at 6 months follow-up showed an increase in the size of the tumor. We performed splenectomy for a suspected malignant tumor...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28130074/loss-of-ucp2-impairs-cold-induced-non-shivering-thermogenesis-by-promoting-a-shift-toward-glucose-utilization-in-brown-adipose-tissue
#20
Alexandre Caron, Sébastien M Labbé, Sophie Carter, Marie-Claude Roy, Roger Lecomte, Daniel Ricquier, Frédéric Picard, Denis Richard
Uncoupling protein 2 (UCP2) was discovered in 1997 and classified as an uncoupling protein largely based on its homology of sequence with UCP1. Since its discovery, the uncoupling function of UCP2 has been questioned and there is yet no consensus on the true function of this protein. UCP2 was first proposed to be a reactive oxygen species (ROS) regulator and an insulin secretion modulator. More recently, it was demonstrated as a regulator of the mitochondrial fatty acid oxidation, which prompted us to investigate its role in the metabolic and thermogenic functions of brown adipose tissue...
March 2017: Biochimie
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