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Abhishek Behera, Nishikant Avinash Damle
No abstract text is available yet for this article.
November 2016: Indian Journal of Endocrinology and Metabolism
J Adam, R Demlová, Z Řehák
BACKGROUND: In Masaryk Memorial Cancer Institute (MMCI), there is a long-running intensive joint effort of the RECAMO project and commercial entities, involving mainly clinical evaluations of state-of-the-art PET radiopharmaceuticals leading to their future availability for Czech physicians and their patients. Recently, the PET tracers [11C]methionine and [18F]fluorocholine, among others, were developed in this cooperation, both of them tracers with high importance for oncologic positron emission tomography diagnostics...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
Sandi A Kwee, Miles M Sato, Yu Kuang, Adrian Franke, Laurie Custer, Kyle Miyazaki, Linda L Wong
PURPOSE: [(18)F]fluorocholine PET/CT can detect hepatocellular carcinoma (HCC) based on imaging the initial steps of phosphatidylcholine synthesis. To relate the diagnostic performance of [(18)F]fluorocholine positron emission tomography (PET)/x-ray computed tomography (CT) to the phospholipid composition of liver tumors, radiopathologic correspondence was performed in patients with early-stage liver cancer who had undergone [(18)F]fluorocholine PET/CT before tumor resection. PROCEDURES: Tumor and adjacent liver were profiled by liquid chromatography mass spectrometry, quantifying phosphatidylcholine species by mass-to-charge ratio...
October 27, 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
M Hocevar, L Lezaic, S Rep, K Zaletel, T Kocjan, M J Sever, J Zgajnar, B Peric
A focused surgical approach based on pre-operative localization replaced the classical four-gland exploration in patients with primary hyperparathyroidism (PHP). Sestamibi scanning and ultrasound are most often used localization modalities with reported sensitivity of 54-100% for identification of single gland disease. The aim of this study was to analyze the results of pre-operative localization with (18)F-Fluorocholine PET/CT (FCh-PET) in patients with PHP. A retrospective review of 151 patients with PHP who underwent surgery after pre-operative localization with FCh-PET was performed...
October 21, 2016: European Journal of Surgical Oncology
Alexis Hugentobler, Laurent Gilbeau, Jean-Noel Talbot, Mathieu Gauthé
Breast cancer is approximately 100 times less common among men. Estrogen-related receptor α was detected in human prostate cancer tissue, and androgen receptors are expressed in both normal and malignant breast tissue. Thus, prostate cancer hormonal therapy may increase breast cancer risk. A 67-year-old man with prostate cancer history presented with rising prostate-specific antigen level. F-Fluorocholine PET/CT showed intense uptake in his right breast and moderate uptake in right axillary lymph node. Complementary F-FDG PET/CT demonstrated more intense tracer uptakes in both the right breast and axillary lymph node...
October 21, 2016: Clinical Nuclear Medicine
Mohsen Beheshti, Alireza Rezaee, Hans Geinitz, Wolfgang Loidl, Christian Pirich, Werner Langsteger
(18)F-fluorocholine is a specific promising agent for imaging tumor cell proliferation, particularly in prostate cancer, using PET/CT. It is a beneficial tool in the early detection of marrow-based metastases because it excludes distant metastases and evaluates the response to hormone therapy. In addition, (18)F-fluorocholine has the potential to differentiate between degenerative and malignant osseous abnormalities because degenerative changes are not choline-avid; however, the agent may accumulate in recent traumatic bony lesions...
October 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Z A Kohutek, R G Blasberg, J Humm, L E Blumberg, C W Brennan, V Tabar, P H Gutin, B Beattie, M Rosenblum, J T Huse, H Schoder, K Beal
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
A Olarte, A Gomez-Iturriaga, I Fernandez, F Casquero, J Cacicedo, A Urresola, A Ezquerro, R Llarena, P Bilbao, E Rodeño
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Wouter P Kluijfhout, Wessel M C M Vorselaars, Sandra A M van den Berk, Menno R Vriens, Inne H M Borel Rinkes, Gerlof D Valk, Thijs van Dalen, John M H de Klerk, Bart de Keizer
BACKGROUND: Several reports have shown good performance of fluorine-18 fluorocholine (F-FCH) PET-computed tomography (CT) for parathyroid localization, although overall evidence remains scarce. We collected data from three institutions in the Netherlands and investigated the performance of F-FCH PET-CT as a second-line imaging modality. MATERIALS AND METHODS: We performed a retrospective review of all patients at least 18 years who underwent F-FCH PET-CT for biochemically proven hyperparathyroidism (HPT) and inconclusive ultrasound and sestamibi scintigraphy...
September 8, 2016: Nuclear Medicine Communications
Joon Young Choi, Jaewon Yang, Susan M Noworolski, Spencer Behr, Albert J Chang, Jeffry P Simko, Hao G Nguyen, Peter R Carroll, John Kurhanewicz, Youngho Seo
Purpose To investigate the initial clinical value of fluorine 18 ((18)F) fluorocholine (FCH) dynamic positron emission tomography (PET)/magnetic resonance (MR) imaging by comparing its parameters with clinical-pathologic findings in patients with newly diagnosed intermediate- to high-risk prostate cancer (PCa) who plan to undergo radical prostatectomy. Materials and Methods The institutional review board approved the study protocol, and informed written consent was obtained from all subjects for this HIPAA-compliant study...
August 11, 2016: Radiology
Marina B Silveira, Soraya M Z M D Ferreira, Leonardo T C Nascimento, Flávia M Costa, Bruno M Mendes, Andrea V Ferreira, Carlos Malamut, Juliana B Silva, Marcelo Mamede
[(18)F]Fluorocholine ([(18)F]FCH) has been proven to be effective in prostate cancer. Since [(18)F]FCH is classified as a new radiopharmaceutical in Brazil, preclinical safety and efficacy data are required to support clinical trials and to obtain its approval. The aim of this work was to perform acute toxicity, biodistribution, pharmacokinetics, radiation dosimetry and microPET imaging studies of [(18)F]FCH. The results could support its use in nuclear medicine as an important piece of work for regulatory in Brazil...
October 2016: Applied Radiation and Isotopes
Junzhong Liu, Zhongfeng Chen, Tianyu Wang, Li Liu, Lei Zhao, Guangtao Guo, Dongqing Wang
BACKGROUND/AIMS: To date, several positron emission tomography/computed tomography (PET/CT) radiotracers including fluorine-18 fluorodeoxyglucose (18F-FDG), carbon-11 labeled choline (11C-choline), 18-F fluorocholine (18F-FCH) and carbon-11 acetate (11C-acetate) have already been assessed in the application of prostate cancer (PCa) diagnosis to some extent, the diagnostic efficiency of these radiotracers still remain controversial. As a result of this, we carried out this meta-analysis for the purpose of comparing the diagnostic accuracy among four PET/CT radiotracers...
2016: Cellular Physiology and Biochemistry
G Janoray, A Reynaud-Bougnoux, A Ruffier-Loubière, G Bernadou, Y Pointreau, G Calais
PURPOSE: Management of prostate cancer relapses after external-beam radiation therapy is still undefined. Re-irradiation schedules have been explored in different tumour sites. In this report, we present our preliminary experience of re-irradiation using stereotactic body radiotherapy for localized prostate cancer failure. MATERIAL AND METHODS: Between March 2011 and October 2014, robotic stereotactic body radiation therapy was administered to patients previously treated with external-beam radiation therapy to a median dose of 71...
June 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Sandip Basu, Abass Alavi
It is imperative that the thrust of clinical practice in the ensuing years would be to develop personalized management model for various disorders. PET-computed tomography (PET-CT) based molecular functional imaging has been increasingly utilized for assessment of tumor and other nonmalignant disorders and has the ability to explore disease phenotype on an individual basis and address critical clinical decision making questions related to practice of personalized medicine. Hence, it is essential to make a concerted systematic effort to explore and define the appropriate place of PET-CT in personalized clinical practice in each of malignancies, which would strengthen the concept further...
July 2016: PET Clinics
Zdeněk Adam, Karel Starý, Jozef Kubinyi, Kateřina Zajíčková, Zdeněk Řehák, Renata Koukalová, Miroslav Tomíška, Martina Doubková, Jiří Prášek, Eva Pourová, Zdeňka Čermáková, Luděk Pour, Marta Krejčí, Viera Sandecká, Eva Ševčíková, Sabina Ševčíková, Zdeněk Král, Aleš Čermák
UNLABELLED: The concentration of calcium is carefully maintained under physiological conditions with parathormone, calcitonin and 1,25-dihydroxyvitamin D at appropriate levels. There are multiple causes that may bring about increased concentrations of calcium which exceed physiological values. Increased production of parathormone in parathyroid glands is only one of the possible causes. Malignant diseases are a very frequent cause of hypercalcemia, due to their creating mediators which stimulate osteoclasts and thereby osteolysis...
2016: Vnitr̆ní Lékar̆ství
Paula Lapa, Rodolfo Silva, Tiago Saraiva, Arnaldo Figueiredo, Rui Ferreira, Gracinda Costa, João Pedroso Lima
INTRODUCTION: In prostate cancer, after therapy with curative intent, biochemical recurrence frequently occurs. The purpose of this study was to evaluate the impact of PET/CT with 18F-fluorocholine in restaging these patients and in their orientation, and to analyze the effect of the risk stratification, the values of PSA and the hormone suppression therapy, in the technique sensitivity. MATERIAL AND METHODS: Retrospective analysis of 107 patients with prostate carcinoma in biochemical recurrence who underwent PET/CT with 18F-fluorocholine in our hospital, between December 2009 and May 2014...
March 2016: Acta Médica Portuguesa
Wessel McM Vorselaars, Wouter P Kluijfhout, Menno R Vriens, Carmen C van der Pol, Inne Hm Borel Rinkes, Gerlof D Valk, Bart de Keizer
No abstract text is available yet for this article.
June 2016: Nuclear Medicine and Molecular Imaging
Finn E von Eyben, Kalevi Kairemo
The objective of the systematic review and meta-analysis was to evaluate whether the choice between two radiotracers, (11)C-choline ((11)C-cho) and (18)F-fluorocholine ((18)F-FCH) for PET/CT, and different acquisition protocols contributed to detect metastases for patients with biochemical recurrence of prostate cancer after radical prostatectomy or radiotherapy. We searched in January 2016 in Pubmed and Embase for articles that had used radiolabeled choline PET/CT in restaging. The meta-analysis evaluated technical and clinical aspects...
July 2016: Annals of Nuclear Medicine
Stefan Vöö, Robert M Kwee, Judith C Sluimer, Floris H B M Schreuder, Roel Wierts, Matthias Bauwens, Sylvia Heeneman, Jack P M Cleutjens, Robert J van Oostenbrugge, Jan-Willem H Daemen, Mat J A P Daemen, Felix M Mottaghy, M Eline Kooi
BACKGROUND: (18)F-fluorocholine ((18)F-FCH) uptake is associated with cell proliferation and activity in tumor patients. We hypothesized that (18)F-FCH could similarly be a valuable imaging tool to identify vulnerable plaques and associated intraplaque inflammation and atheroma cell proliferation. METHODS AND RESULTS: Ten consecutive stroke patients (90% men, median age 66.5 years, range, 59.4-69.7) with ipsilateral >70% carotid artery stenosis and who underwent carotid endarterectomy were included in the study...
May 2016: Circulation. Cardiovascular Imaging
Aaron Kian Ti Tong, Zoe Xiaozhu Zhang, Sumbul Zaheer, Xuexian Sean Yan
OBJECTIVES: Prostate carcinoma is a major health problem, and routine imaging shows only modest results in detecting and restaging clinically localized prostate cancer recurrence. Recent studies have shown promise of radiolabeled analogues of choline for positron emission tomography (PET) scans in patients of biochemical recurrence and that sequentially incremental Fluorocholine (FCH) uptake is associated with malignancy, whereas decreasing tracer activity suggests a benign aetiology...
May 2016: Clinical Imaging
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