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https://www.readbyqxmd.com/read/29140859/patient-and-caregiver-assessment-of-the-benefits-from-the-clinical-use-of-amyloid-pet-imaging
#1
Rafid Mustafa, Jared R Brosch, Gil D Rabinovici, Bradford C Dickerson, Maria C Carrillo, Bradley S Glazier, Sujuan Gao, Martha Tierney, Keith N Fargo, Mary G Austrom, Susan De Santi, David G Clark, Liana G Apostolova
INTRODUCTION: Few studies to date have explored patient and caregiver views on the clinical use of amyloid positron emission tomography (PET). METHODS: A 7-item questionnaire assessing patient and caregiver views (510 total respondents) toward amyloid PET imaging was advertised broadly through alz.org/trialmatch. RESULTS: We received 510 unique responses from 48 US states, 2 Canadian provinces, the Dominican Republic, and Greece. Both patients and caregivers indicated that they would want to receive amyloid imaging if offered the opportunity...
November 14, 2017: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/29140741/comparative-in-vitro-study-of-11-c-methionine-and-11-c-deuterodeprenyl-uptake-in-three-human-glioma-cell-lines
#2
Elena Vasilskis, Ingrid Kreimerman, Silvia Olivera, Eduardo Savio, Henry Engler
AIM: To compare the uptake of (11)C-deuterodeprenyl ((11)C-DED) and (11)C-methionine ((11)C-MET) in three human glioma cell lines and study the relationship with glial fibrillary acid protein (GFAP) and monoamine oxidase B (MAO B) expression. (11)C-DED is used in positron emission tomography imaging as a marker of astrocytosis in various central nervous system pathologies. It binds irreversibly to MAO B, a glial dimeric enzyme with increased activity in some neurological pathologies. MATERIALS AND METHODS: Binding and internalization studies of (11)C-MET and (11)C-DED were performed in astrocytoma grade III, glioblastoma grade IV, and radio-resistant glioblastoma grade IV cells...
November 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29139652/liposarcoma-of-the-spermatic-cord-%C3%A2-a-rare-pathological-entity
#3
Nikola Radović, Arianna Bizatzki, Rajka Turner
Liposarcoma of the spermatic cord is a very rare neoplasm with fewer than 200 cases recorded in world literature. This report describes a case of liposarcoma of the spermatic cord which developed after radical prostatectomy and salvage radiotherapy for prostate cancer treatment. Four years following surgical treatment of the primary neoplasm and one year following radiotherapy, the 67 –year –old patient was referred to the urology clinic for the emergence of a mass in the right hemiscrotum region. Ultrasonography revealed a homogenous isodense mass measuring 4...
March 2017: Collegium Antropologicum
https://www.readbyqxmd.com/read/29138942/calculation-of-left-ventricular-volumes-and-ejection-fraction-from-dynamic-cardiac-gated-15-o-water-pet-ct-5d-pet
#4
Jonny Nordström, Tanja Kero, Hendrik Johannes Harms, Charles Widström, Frank A Flachskampf, Jens Sörensen, Mark Lubberink
BACKGROUND: Quantitative measurement of myocardial blood flow (MBF) is of increasing interest in the clinical assessment of patients with suspected coronary artery disease (CAD). (15)O-water positron emission tomography (PET) is considered the gold standard for non-invasive MBF measurements. However, calculation of left ventricular (LV) volumes and ejection fraction (EF) is not possible from standard (15)O-water uptake images. The purpose of the present work was to investigate the possibility of calculating LV volumes and LVEF from cardiac-gated parametric blood volume (V B) (15)O-water images and from first pass (FP) images...
November 14, 2017: EJNMMI Physics
https://www.readbyqxmd.com/read/29138880/morphological-classification-of-intraductal-papillary-neoplasm-of-the-bile-duct
#5
Shihong Ying, Mingliang Ying, Wenjie Liang, Zhaoming Wang, Qidong Wang, Feng Chen, Wenbo Xiao
OBJECTIVES: To investigate the morphological classification of intraductal papillary neoplasm of the bile duct (IPNB), as well as morphological differences between IPNB without mucin secretion (IPNB-NM) and IPNB with mucin secretion (IPMN-B). METHODS: Eighty-one patients with IPNB were retrospectively analysed. Imaging examinations included computed tomography (CT), magnetic resonance imaging (MRI), gadolinium-ethoxybenzyl-diethylenetriaminepentaacetic acid (Gd-EOB-DTPA)-enhanced MRI and positron emission tomography-computed tomography (PET-CT)...
November 14, 2017: European Radiology
https://www.readbyqxmd.com/read/29138500/circulating-androgen-receptor-combined-with-18f-fluorocholine-pet-ct-metabolic-activity-and-outcome-to-androgen-receptor-signalling-directed-therapies-in-castration-resistant-prostate-cancer
#6
V Conteduca, E Scarpi, P Caroli, S Salvi, C Lolli, S L Burgio, C Menna, G Schepisi, S Testoni, G Gurioli, G Paganelli, V Casadio, F Matteucci, U De Giorgi
The association between choline uptake and androgen receptor (AR) expression is suggested by the upregulation of choline kinase-alpha in prostate cancer. Recently, detection of AR aberration in cell-free DNA as well as early 18F-fluorocholine positron emission tomography/computed tomography (FCH-PET/CT) were associated with outcome in metastatic castration-resistant prostate cancer (mCRPC) patients treated with abiraterone and enzalutamide. We aimed to make a direct comparison between circulating AR copy number (CN) and choline uptake at FCH-PET/CT...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138384/-a-case-of-biopsy-confirmed-unresectable-retroperitoneal-seminoma-successfully-treated-with-chemotherapy
#7
Tohru Takahashi, Takuya Kato, Tatsuzo Mizukami, Takanori Ohata, Taku Hashimoto, Hironori Abe
We herein report a case of a retroperitoneal tumor of unknown origin that was diagnosed as a seminoma after tumor biopsy and was successfully treated with chemotherapy containing bleomycin, etoposide, and cisplatin(BEP). A 47-year old man visited our hospital with left abdominal pain. An endoscopic examination revealed an ulcer lesion on the third part of the duodenum. Abdominal CT scan revealed a retroperitoneal tumor invading the abdominal aorta with the tumor thrombus in the inferior vena cava(IVC). An endoscopic biopsy could not identify the tumor's origin because of the negative staining of various surface markers on immunohistochemistry...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29137818/molecular-imaging-for-the-diagnosis-of-infective-endocarditis-a-systematic-literature-review-and-meta-analysis
#8
Daniel Juneau, Mohammad Golfam, Samir Hazra, Fernanda Erthal, Lionel S Zuckier, Jordan Bernick, George A Wells, Rob S B Beanlands, Benjamin J W Chow
BACKGROUND: Infective endocarditis (IE) is a serious, potentially life-threatening condition. Currently, the modified Duke criteria is used to assist with the diagnosis of IE, but it can still remain difficult. Growing data supports the potential use of molecular imaging to assist in the diagnosis of IE. Our objective was to understand the potential utility of (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography-computed tomography (PET-CT), (67)Ga citrate and radiolabeled white blood cell (WBC) scintigraphy in the diagnosis of IE...
November 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29137440/comparison-of-dwi-and-18-f-fdg-pet-ct-for-assessing-preoperative-n-staging-in-gastric-cancer-evidence-from-a-meta-analysis
#9
Mingxu Luo, Hongmei Song, Gang Liu, Yikai Lin, Lintao Luo, Xin Zhou, Bo Chen
The diagnostic values of diffusion weighted imaging (DWI) and (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) for N-staging of gastric cancer (GC) were identified and compared. After a systematic search to identify relevant articles, meta-analysis was used to summarize the sensitivities, specificities, and areas under curves (AUCs) for DWI and PET/CT. To better understand the diagnostic utility of DWI and PET/CT for N-staging, the performance of multi-detector computed tomography (MDCT) was used as a reference...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137414/salvage-lymph-node-dissection-after-68-ga-psma-or-18-f-fec-pet-ct-for-nodal-recurrence-in-prostate-cancer-patients
#10
Annika Herlemann, Alexander Kretschmer, Alexander Buchner, Alexander Karl, Stefan Tritschler, Lina El-Malazi, Wolfgang P Fendler, Vera Wenter, Harun Ilhan, Peter Bartenstein, Christian G Stief, Christian Gratzke
The management of patients with biochemical recurrence (BCR) after definitive treatment for prostate cancer remains controversial. Our aim was to determine survival rates and complications of salvage lymph node dissection (sLND) in patients with recurrent prostate cancer after radical prostatectomy, while evaluating biochemical response (BR) with two different positron emission tomography/computed tomography (PET/CT) tracers used for preoperative imaging. sLND was performed in 104 patients diagnosed with isolated nodal recurrence on either (18)F-fluoroethylcholine ((18)F-FEC) or (68)Ga-PSMA-HBED-CC ((68)Ga-PSMA) PET/CT...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137296/early-detection-of-thymidylate-synthase-resistance-in-non-small-cell-lung-cancer-with-flt-pet-imaging
#11
Xiao Chen, Yizeng Yang, Sharyn Katz
Introduction: Inhibition of thymidylate synthase (TS) results in a transient compensatory "flare" in thymidine salvage pathway activity measureable with (18)F-thymidine (FLT)- positron emission tomography (PET) at 2hrs. of therapy which may predict non-small cell lung cancer (NSCLC) sensitivity to TS inhibition. Materials and Methods: Resistance to TS inhibition by pemetrexed was induced in NSCLC cell lines H460 and H1299 through TS overexpression. TS overexpression was confirmed with RT-PCR and Western blotting and pemetrexed resistance confirmed with IC50 assays...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137104/tumor-and-bone-marrow-uptakes-on-18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-predict-prognosis-in-patients-with-diffuse-large-b-cell-lymphoma-receiving-rituximab-containing-chemotherapy
#12
Chin-Chuan Chang, Shih-Feng Cho, Hung-Pin Tu, Chia-Yang Lin, Ya-Wen Chuang, Shu-Min Chang, Wen-Ling Hsu, Ying-Fong Huang
The purpose of this study was to determine the relevance of standardized uptake value (SUV) on [F]fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT), focusing on tumor and bone marrow, to disease outcomes based on progression-free survival (PFS) and overall survival (OS) in patients with diffuse large B-cell lymphoma (DLBCL) receiving rituximab-containing chemotherapy.We reviewed the records of patients with DLBCL who were diagnosed between September 2009 and January 2013 and underwent pretreatment whole-body FDG PET/CT scans...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137072/volume-based-metabolic-parameter-of-breast-cancer-on-preoperative-18f-fdg-pet-ct-could-predict-axillary-lymph-node-metastasis
#13
Young-Sil An, Doo Kyoung Kang, Yongsik Jung, Tae Hee Kim
The purpose of our study was to evaluate the association between metabolic parameters on FDG PET/CT and axillary lymph node metastasis (ALNM) in patients with invasive breast cancer.From January 2012 to December 2012, we analyzed 173 patients with invasive ductal carcinoma (IDC) who underwent both initial breast magnetic resonance imaging (MRI) and F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) examinations. All metabolic parameters were measured from the tumor volume segmented by a gradient-based method...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137032/non-hodgkin-lymphoma-of-multiple-extranodal-involvement-seen-on-mri-fdg-pet-ct-scans-a-case-report
#14
Shan Wang, Meng Meng, Qiuhu Wang, Kai Xu
RATIONALE: Anaplastic large cell lymphoma (ALCL) is a rare type of non-Hodgkin lymphoma (NHL). The most common extranodal sites of ALCL are skin, subcutaneous tissue, bone, lung, and gastrointestinal organs. This study reports a case of ALCL with multiple extranodal involvement, especially the whole body skeletal muscles, with the aim to share the imaging features of the ALCL including magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137009/brain-metabolism-in-patients-with-freezing-of-gait-after-hypoxic-ischemic-brain-injury-a-pilot-study
#15
Seo Yeon Yoon, Sang Chul Lee, Na Young Kim, Young-Sil An, Yong Wook Kim
Movement disorders are 1 of the long-term neurological complications that can occur after hypoxic-ischemic brain injury (HIBI). However, freezing of gait (FOG) after HIBI is rare. The aim of this study was to examine the brain metabolism of patients with FOG after HIBI using F-18 fluoro-2-deoxy-D-glucose positron emission tomography (F-18 FDG PET).We consecutively enrolled 11 patients with FOG after HIBI. The patients' overall brain metabolism was measured by F-18 FDG PET, and we compared their regional brain metabolic activity with that from 15 healthy controls using a voxel-by-voxel-based statistical mapping analysis...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136209/use-of-18f-fluorodeoxyglucose-positron-emission-tomography-in-the-diagnosis-of-polymyalgia-rheumatica-a-prospective-study-of-99-patients
#16
Liesbet Henckaerts, Olivier Gheysens, Steven Vanderschueren, Karolien Goffin, Daniel Blockmans
Objective: Previous studies have shown that the majority of patients with PMR have increased 18F-fluorodeoxyglucose (FDG) uptake around the shoulders, hips and processes of the cervical and lumbar spine on PET. The specificity of these findings for PMR is, however, not known. Methods: We prospectively included 99 consecutive patients with a possible clinical diagnosis of PMR. All patients underwent 18F-FDG-PET scanning before treatment with glucocorticoids was started...
October 7, 2017: Rheumatology
https://www.readbyqxmd.com/read/29136123/amyloid-network-topology-characterizes-the-progression-of-alzheimer-s-disease-during-the-predementia-stages
#17
Joana B Pereira, Tor Olof Strandberg, Sebastian Palmqvist, Giovanni Volpe, Danielle van Westen, Eric Westman, Oskar Hansson
There is increasing evidence showing that the accumulation of the amyloid-β (Aβ) peptide into extracellular plaques is a central event in Alzheimer's disease (AD). These abnormalities can be detected as lowered levels of Aβ42 in the cerebrospinal fluid (CSF) and are followed by increased amyloid burden on positron emission tomography (PET) several years before the onset of dementia. The aim of this study was to assess amyloid network topology in nondemented individuals with early stage Aβ accumulation, defined as abnormal CSF Aβ42 levels and normal Florbetapir PET (CSF+/PET-), and more advanced Aβ accumulation, defined as both abnormal CSF Aβ42 and Florbetapir PET (CSF+/PET+)...
November 9, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29135382/generalization-of-endothelial-modelling-of-tspo-pet-imaging-considerations-on-tracer-affinities
#18
Gaia Rizzo, Mattia Veronese, Matteo Tonietto, Benedetta Bodini, Bruno Stankoff, Catriona Wimberley, Sonia Lavisse, Michel Bottlaender, Peter S Bloomfield, Oliver Howes, Paolo Zanotti-Fregonara, Federico E Turkheimer, Alessandra Bertoldo
The 18 kDa translocator protein (TSPO) is a marker of microglia activation and the main target of positron emission tomography (PET) ligands for neuroinflammation. Previous works showed that accounting for TSPO endothelial binding improves PET quantification for [(11)C]PBR28, [(18)F]DPA714 and [(11)C]-R-PK11195. It is still unclear, however, whether the vascular signal is tracer-dependent. This work aims to explore the relationship between the TSPO vascular and tissue components for PET tracers with varying affinity, also assessing the impact of affinity towards the differentiability amongst kinetics and the ensuing ligand amenability to cluster analysis for the extraction of a reference region...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29135331/imaging-microglial-activation-and-amyloid-burden-in-amnestic-mild-cognitive-impairment
#19
Dunja Knezevic, Nicolaas Paul Lg Verhoeff, Sina Hafizi, Antonio P Strafella, Ariel Graff-Guerrero, Tarek Rajji, Bruce G Pollock, Sylvain Houle, Pablo M Rusjan, Romina Mizrahi
Amnestic mild cognitive impairment (aMCI) is defined as a transitional state between normal aging and Alzheimer's disease (AD). Given the replicated finding of increased microglial activation in AD, we sought to investigate whether microglial activation is also elevated in aMCI and whether it is related to amyloid beta (Aβ) burden in-vivo . Eleven aMCI participants and 14 healthy volunteers completed positron emission tomography (PET) scans with [(18)F]-FEPPA and [(11)C]-PIB. Given the known sensitivity in affinity of second-generation TSPO radioligands, participants were genotyped for the TSPO polymorphism and only high-affinity binders were included...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29135102/changes-in-18f-fdg-pet-ct-tumor-metabolism-are-not-consistent-with-pathologic-complete-response-in-hormone-positive-breast-cancer
#20
Serap Kaya, Bilge Aktas, Eda Tanrikulu Sismek, Mehmet Akif Ozturk, Fuat Dede, Handan Kaya, Umit Ugurlu, Zerrin Ozgen, Sinan Koca, Suleyman Halil, Rahib Hasanov, Ozkan Alan, Nalan Akgul Babacan, Ozlem Ercelep, Faysal Dane, Mahmut Gumus, Fulden Yumuk
PURPOSE: Current evaluation of response to neoadjuvant chemotherapy (NAC) shows that it could achieve pathological complete response (pCR). The purpose of this study was to assess the consistency of maximum uptake values (SUVmax) changes and pCR in hormone-positive locally advanced breast cancer (LABC). METHODS: Ninety hormone-positive LABC patients treated at Marmara University Medical Oncology Clinic, Istanbul, Turkey, between 2009 and 2015 were retrospectively studied...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
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