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https://www.readbyqxmd.com/read/28497566/cest-mri-of-3-o-methyl-d-glucose-on-different-breast-cancer-models
#1
Michal Rivlin, Gil Navon
PURPOSE: To test the ability of chemical exchange saturation transfer (CEST) MRI of 3-O-methyl-D-glucose (3OMG) to detect tumors in several breast cancer models of murine and human origin, for different routes of administration of the agent and to compare the method with glucoCEST and with (18) FDG-PET on the same animals. METHODS: In vivo CEST MRI experiments were performed with a 7T Biospec animal MRI scanner on implanted orthotopic mammary tumors of mice before and after administration of 3OMG...
May 12, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28485042/prognostic-models-for-primary-mediastinal-thymic-b-cell-lymphoma-derived-from-18-fdg-pet-ct-quantitative-parameters-in-the-international-extranodal-lymphoma-study-group-ielsg-26-study
#2
Luca Ceriani, Maurizio Martelli, Annarita Conconi, Pier L Zinzani, Andrés J M Ferreri, Barbara Botto, Caterina Stelitano, Manuel Gotti, Maria G Cabras, Luigi Rigacci, Luca Giovanella, Emanuele Zucca, Peter W M Johnson
The International Extranodal Lymphoma Study Group-26 study evaluated the prognostic role of 18-fluorodeoxyglucose positron-emission tomography (PET) in primary mediastinal large B-cell lymphoma. We assessed quantitative PET parameters at diagnosis and post-treatment in 100 patients. The end-of-therapy total lesion glycolysis (TLG) was the best individual outcome predictor, but the combination of baseline TLG and end-of-therapy visual analysis with Deauville Score (DS) showed a better positive predictive value...
May 9, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28474323/update-on-treatment-in-cardiac-sarcoidosis
#3
REVIEW
Laura Young, Brett W Sperry, Rory Hachamovitch
The prevalence of cardiac sarcoidosis has exponentially increased over the past decade, primarily due to increased awareness and diagnostic modalities for the disease entity. Despite an expanding patient cohort, the optimal management of cardiac sarcoidosis remains yet to be established with a significant lack of prospective trials to support current practice. Corticosteroids remain first-line treatment of this disorder, and we recommend that immunosuppressive therapy should be initiated in all patients diagnosed with cardiac sarcoidosis...
June 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28469812/18-fluoro-deoxyglucose-uptake-in-inflammatory-hepatic-adenoma-a-case-report
#4
Willy Liu, Jean Delwaide, Noella Bletard, Philippe Delvenne, Paul Meunier, Roland Hustinx, Olivier Detry
Positron emission tomography computed tomography (PET-CT) using 18-Fluoro-deoxyglucose ((18)FDG) is an imaging modality that reflects cellular glucose metabolism. Most cancers show an uptake of (18)FDG and benign tumors do not usually behave in such a way. The authors report herein the case of a 38-year-old female patient with a past medical history of cervical intraepithelial neoplasia and pheochromocytoma, in whom a liver lesion had been detected with PET-CT. The tumor was laparoscopically resected and the diagnosis of inflammatory hepatic adenoma was confirmed...
April 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28455733/carotid-atherosclerotic-plaques-standardised-uptake-values-software-challenges-and-reproducibility
#5
Nicola Giannotti, Martin J O'Connell, Shane J Foley, Peter J Kelly, Jonathan P McNulty
BACKGROUND: Positron emission tomography-computed tomography (PET-CT) carotid standardised uptake values (SUV) of (18)F-fluorodeoxyglucose ((18)FDG) have been proposed as an inflammatory biomarker for determining cerebrovascular diseases such as stroke. Consideration of varying methodological approaches and software packages is critical to the calculation of accurate SUVs in cross-sectional and longitudinal patient studies. The aim of this study was to investigate whether or not carotid atherosclerotic plaque SUVs are consistent and reproducible between software packages...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28441783/comparison-between-mr-perfusion-and-18f-fdg-pet-in-differentiating-tumor-recurrence-from-nonneoplastic-contrast-enhancing-tissue
#6
Yogesh Kumar, Nishant Gupta, Manisha Mangla, Kusum Hooda, Rajiv Mangla
Objective: Comparison of the accuracy of MR perfusion and 18-FDG-PET for differentiating tumor progression from nonneoplastic contrast-enhancing tissue. Methods and Materials: Retrospective review of MR perfusion and 18-FDG-PET in 23 cases of primary brain tumors (17 high grade and 6 low grade glial neoplasms) and 5 cases of metastatic lesions with enhancing lesions on post-treatment MRI was performed. The accuracy of MR perfusion versus 18-FDG-PET for distinguishing between nonneoplastic contrast-enhancing tissue and tumor recurrence was assessed...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28439843/effective-dose-estimation-for-oncological-and-neurological-pet-ct-procedures
#7
Josep M Martí-Climent, Elena Prieto, Verónica Morán, Lidia Sancho, Macarena Rodríguez-Fraile, Javier Arbizu, María J García-Velloso, José A Richter
BACKGROUND: The aim of this study was to retrospectively evaluate the patient effective dose (ED) for different PET/CT procedures performed with a variety of PET radiopharmaceutical compounds. PET/CT studies of 210 patients were reviewed including Torso (n = 123), Whole body (WB) (n = 36), Head and Neck Tumor (HNT) (n = 10), and Brain (n = 41) protocols with (18)FDG (n = 170), (11)C-CHOL (n = 10), (18)FDOPA (n = 10), (11)C-MET (n = 10), and (18)F-florbetapir (n = 10)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28430171/the-prognostic-value-of-18-fdg-positron-emission-tomography-in-t-cell-non-hodgkin-lymphoma
#8
R Eslick, L Dunlop, M Lin, D Hsu, S Ling
No abstract text is available yet for this article.
April 21, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28427517/interim-18-fdg-pet-ct-during-radiochemotherapy-in-the-management-of-pelvic-malignancies-a-systematic-review
#9
REVIEW
Mahila Ferrari, Laura Lavinia Travaini, Delia Ciardo, Cristina Garibaldi, Laura Gilardi, Robert Glynne-Jones, Chiara Maria Grana, Barbara Alicja Jereczek-Fossa, Giulia Marvaso, Sara Ronchi, Maria Cristina Leonardi, Roberto Orecchia, Marta Cremonesi
(18)F-fluorodeoxyglucose PET/CT ((18)F-FDG-PET/CT) is widely applied in oncology for disease staging, assessment of therapy response, relapse diagnosis, follow-up and target volume delineation. In particular, it can detect early response during chemoradiotherapy (interim) because functional modifications usually precede morphological ones. This ability is crucial to the radiation oncologist for the management of patients, to avoid persisting with ineffective therapy - often leading toxicity - and to shift to potentially more effective alternatives...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28427271/the-value-of-pre-and-post-neoadjuvant-chemotherapy-f-18-fdg-pet-ct-scans-in-breast-cancer-comparison-with-mri
#10
Eun Kyoung Choi, Ie Ryung Yoo, Sung Hun Kim, Sonya Youngju Park, Joo Hyun O, Bong Joo Kang
Background Accurate assessment of neoadjuvant chemotherapy (NAC) response with positron emission tomography/computed tomography (PET/CT) or magnetic resonance imaging (MRI) may provide appropriate operation guidelines for individual breast cancer patients. Purpose To compare the values of PET/CT and MRI for response evaluation following NAC in breast cancer patients. Material and Methods Thirty-three consecutive patients who underwent NAC were included. PET/CT and MRI were performed before and one to four weeks after NAC...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28420891/diagnostic-value-of-dual-time-point-f-18-fdg-pet-ct-and-chest-ct-for-the-prediction-of-thymic-epithelial-neoplasms
#11
Takayoshi Shinya, Takashi Tanaka, Junichi Soh, Toshi Matsushita, Shuhei Sato, Shinichi Toyooka, Tadashi Yoshino, Shinichiro Miyoshi, Susumu Kanazawa
We retrospectively assessed the dual-time-point (DTP) F-18 FDG PET/CT findings of thymic epithelial neoplasms (TENs) and investigated the diagnostic capacity of PET/CT compared to that of CT for predicting carcinoma. We calculated the ratio of the standardized uptake value of the tumor and that of the aortic arch (T/M ratio) for both the 90-min early scan and the 2-h delayed scan in 56 TEN patients. We used a multivariate logistic regression (MLR) analysis to estimate the CT features of carcinoma. We compared the diagnostic capacities of PET/CT and chest CT using receiver operating characteristic (ROC) analyses...
April 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28415990/prognostic-value-of-pretreatment-standardized-uptake-value-of-f-18-fluorodeoxyglucose-pet-in-patients-with-gastric-cancer-a-meta-analysis
#12
Zhonghua Wu, Junhua Zhao, Peng Gao, Yongxi Song, Jingxu Sun, Xiaowan Chen, Bin Ma, Zhenning Wang
BACKGROUND: F-18- fluorodeoxyglucose Positron emission tomography ((18)FDG-PET) has been widely used in clinical practice. However, the prognostic value of the pretreatment standardized uptake value (SUV) for patients with gastric cancer remains controversial. METHODS: Major databases were systematically searched. The quality of the included studies was assessed using the Newcastle-Ottawa scale; the PET protocols were also evaluated. The pooled hazard ratio (HR) for overall survival (OS) and recurrence-free survival (RFS) were used to estimate the effect size...
April 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28415940/thymoma-metastatic-to-liver-and-pancreas-case-report-and-review-of-the-literature
#13
Nicola Passuello, Gioia Pozza, Stella Blandamura, Michele Valmasoni, Cosimo Sperti
A 71-year-old man presented with a thymic mass involving the superior vena cava. A mediastinoscopical biopsy initially suggested a diagnosis of type A thymoma. After neoadjuvant chemotherapy, the patient underwent en-bloc thymectomy and vascular resection for a pathology-confirmed type B3 thymoma involving the superior vena cava, the left brachiocephalic vein and the distal part of the right brachiocephalic vein. Adjuvant radiotherapy was administered. Two years after the primary surgery, abdominal computed tomography (CT) and whole body fluorodeoxyglucose (18-FDG) positron emission tomography (PET) scans showed a single hepatic lesion that was treated with wedge liver resection...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28413664/extranodal-natural-killer-t-cell-lymphoma-presenting-as-cavernous-sinus-syndrome
#14
Hong-Cheng Mai, Dan-Xia Chen, Dan Lu, Yu-Sheng Zhang
Extranodal natural killer (NK)/T-cell lymphomas are rare, highly aggressive tumors of the central nervous system (CNS) that commonly affect the nasal cavity or paranasal sinuses. NK/T-cell lymphomas are associated with a poor prognosis, as they exhibit a wide range of unique clinical presentations and neuroimaging findings that are currently difficult to detect. Pathological examination is considered to be more reliable for defining the pathological entity of NK/T-cell lymphoma. Early testing for fluorodeoxyglucose (FDG)-positron emission tomography combined with computed tomography may improve the evaluation of lymphomas, which have been known to display avid (18)FDG uptake...
April 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28403341/anatomo-radiological-correlation-using-18-fdg-pet-in-abdominal-sepsis-model-in-rats-a-preliminary-study
#15
Ítalo Medeiros Azevedo, Marília Daniela Ferreira Carvalho, Rafael Pereira Nascimento, Robson Macedo, Mônica Raquel de Souza Aquino, Aldo Cunha Medeiros
Purpose: To examine a correlation of micro-PET images with photographic images of the digestive organs in abdominal sepsis model. Methods: Male Wistar rats weighing 265±18g were used. Abdominal sepsis was induced by ligature and cecal puncture. Micro-PET Images from abdominal cavity septic foci were obtained using 18-Fluoro-deoxyglucose, looking for a correlation with photographic images of abdominal cavity organs. Pearson's correlation test was used. Results: The mean standard uptake values (SUV) and lesion areas were 2...
March 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28399836/cost-effectiveness-of-response-evaluation-after-chemoradiation-in-patients-with-advanced-oropharyngeal-cancer-using-18-f-fdg-pet-ct-and-or-diffusion-weighted-mri
#16
Marjolein Je Greuter, Charlotte S Schouten, Jonas A Castelijns, Pim de Graaf, Emile Fi Comans, Otto S Hoekstra, Remco de Bree, Veerle Mh Coupé
BACKGROUND: Considerable variation exists in diagnostic tests used for local response evaluation after chemoradiation in patients with advanced oropharyngeal cancer. The yield of invasive examination under general anesthesia (EUA) with biopsies in all patients is low and it may induce substantial morbidity. We explored four response evaluation strategies to detect local residual disease in terms of diagnostic accuracy and cost-effectiveness. METHODS: We built a decision-analytic model using trial data of forty-six patients and scientific literature...
April 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28393895/sex-differences-in-regional-brain-glucose-metabolism-following-opioid-withdrawal-and-replacement
#17
Giovanni C Santoro, Joseph Carrion, Krishna Patel, Crystal Vilchez, Jennifer Veith, Jonathan D Brodie, Stephen L Dewey
Methadone and buprenorphine are currently the most common pharmacological treatments for opioid dependence. Interestingly, the clinical response to these drugs appears to be sex-specific. That is, females exhibit superior therapeutic efficacy, defined as extended periods of abstinence and longer time to relapse, compared to males. However, the underlying metabolic effects of opioid withdrawal and replacement have not been examined. Therefore, using (18)FDG and microPET, we measured differences in regional brain glucose metabolism in males and females following morphine withdrawal and subsequent methadone or buprenorphine replacement...
April 10, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28382139/in-vivo-imaging-of-experimental-melanoma-tumors-using-the-novel-radiotracer-68-ga-nodaga-procainamide-pca
#18
István Kertész, András Vida, Gábor Nagy, Miklós Emri, Antal Farkas, Adrienn Kis, János Angyal, Noémi Dénes, Judit P Szabó, Tünde Kovács, Péter Bai, György Trencsényi
PURPOSE: The most aggressive form of skin cancer is the malignant melanoma. Because of its high metastatic potential the early detection of primary melanoma tumors and metastases using non-invasive PET imaging determines the outcome of the disease. Previous studies have already shown that benzamide derivatives, such as procainamide (PCA) specifically bind to melanin pigment. The aim of this study was to synthesize and investigate the melanin specificity of the novel (68)Ga-labeled NODAGA-PCA molecule in vitro and in vivo using PET techniques...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28377480/a-phase-ii-study-of-dovitinib-in-patients-with-recurrent-or-metastatic-adenoid-cystic-carcinoma
#19
Patrick M Dillon, Gina R Petroni, Bethany J Horton, Christopher A Moskaluk, Paula M Fracasso, Michael G Douvas, Nikole Varhegyi, Snjezana Zaja-Milatovic, Christopher Y Thomas
Purpose: Genetic and preclinical studies have implicated fibroblast growth factor receptor (FGFR) signaling in the pathogenesis of adenoid cystic carcinoma (ACC). Dovitinib, a suppressor FGFR activity, may be active in ACC. <p>Methods: In a two-stage phase II study, 35 patients with progressive ACC were treated with dovitinib 500mg orally for 5 of 7 days continuously.  The primary endpoints were objective response rate (ORR) and change in tumor growth rate (TGR). Progression-free survival (PFS), overall survival (OS), metabolic response, biomarker and QOL were secondary endpoints...
April 4, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28349676/flourodeoxyglucose-positron-emission-tomography-scan-may-be-helpful-in-the-case-of-ductal-variant-prostate-cancer-when-prostate-specific-membrane-antigen-ligand-positron-emission-tomography-scan-is-negative
#20
Louise M McEwan, David Wong, John Yaxley
Gallium-68 prostate specific membrane antigen ligand (Ga-68 PSMA) positron emission tomography/computed tomography (PET/CT) scanning is emerging as a useful imaging modality for the staging of suspected and known recurrent or metastatic prostate cancer and in staging of newly diagnosed higher grade prostate cancer. However, we have observed at our institution that in some cases of the more aggressive ductal variant, Ga-68 PSMA uptake has sometimes been poor compared with prominent 18-flourodeoxyglucose (F-18 FDG) avidity seen in F-18 FDG PET/CT, which would suggest that FDG PET/CT scans are important in staging of ductal pattern prostate cancer...
March 28, 2017: Journal of Medical Imaging and Radiation Oncology
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