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https://www.readbyqxmd.com/read/28033216/incremental-value-of-18f-fluorocholine-pet-ct-in-the-localization-of-double-parathyroid-adenomas
#1
Paul Lalire, Sang Ly, Sophie Deguelte, Martine Patey, David Morland
A 73-year-old man displaying primary hyperparathyroidism with severe hypercalcemia (Ca: 4.1 mmol/l, PTH > 600 pmol/l) was referred for preoperative localization of a parathyroid adenoma. Tc-pertechnetate and Tc-sestaMIBI dual tracer scintigraphy displayed a mild focal uptake in the projection of the right thyroid lobe with negative ultrasonography. F-Fluorocholine PET/CT was quickly performed considering this discrepancy and not only confirmed the scintigraphic findings but also revealed a second contralateral focus of increased uptake, both later confirmed by operative consideration (the two other parathyroid glands are considered normal by the surgeon), pathology, and intraoperative parathyroid hormone assessment...
December 28, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27987557/brain-tumors-an-update-on-clinical-pet-research-in-gliomas
#2
REVIEW
Karl Herholz
A previous review published in 2012 demonstrated the role of clinical PET for diagnosis and management of brain tumors using mainly FDG, amino acid tracers, and (18)F-fluorothymidine. This review provides an update on clinical PET studies, most of which are motivated by prediction of prognosis and planning and monitoring of therapy in gliomas. For FDG, there has been additional evidence supporting late scanning, and combination with (13)N ammonia has yielded some promising results. Large neutral amino acid tracers have found widespread applications mostly based on (18)F-labeled compounds fluoroethyltyrosine and fluorodopa for targeting biopsies, therapy planning and monitoring, and as outcome markers in clinical trials...
January 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/27927229/evaluation-of-tumor-recurrences-after-radical-prostatectomy-using-18f-choline-pet-ct-and-3t-multiparametric-mri-without-endorectal-coil-a-single-center-experience
#3
Felipe Couñago, Manuel Recio, Antonio Maldonado, Elia Del Cerro, Ana Aurora Díaz-Gavela, Israel J Thuissard, David Sanz-Rosa, Francisco José Marcos, Karmele Olaciregui, María Mateo, Laura Cerezo
BACKGROUND: To evaluate and compare the utility of 18F-fluorocholine (18F-CH) PET/CT versus 3-Tesla multiparametric MRI (mpMRI) without endorectal coil to detect tumor recurrences in patients with biochemical relapse following radical prostatectomy (RP). Secondarily, to identify possible prognostic variables associated with mpMRI and 18F-CH PET/CT findings. METHODS: Retrospective study of 38 patients who developed biochemical recurrence after RP between the years 2011 and 2015 at our institution...
December 7, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27923396/how-we-read-fch-pet-ct-for-prostate-cancer
#4
REVIEW
Jean-Mathieu Beauregard, Alexis Beaulieu
Over the last decade, (18)F-fluorocholine positron emission tomography/computed tomography (FCH-PET/CT) has gained in popularity for the staging and restaging of patients with prostate cancer (PCa). However, despite abundant literature on the topic, there is a lack of publications on how to actually interpret FCH-PET/CT in a clinical setting. Here we propose a practical, TNM-oriented approach to read FCH-PET/CT, with notes on procedure technique, image display, review sequence and report structure. The purpose of this article is to provide guidance to radiologists, nuclear medicine physicians and residents who are new to FCH-PET/CT, as well as to propose an alternate approach to more experienced physicians...
December 6, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27867904/incremental-role-of-18-f-fluorocholine-pet-ct-over-technetium-99m-labeled-mibi-scan-in-hyperparathyroidism
#5
Abhishek Behera, Nishikant Avinash Damle
No abstract text is available yet for this article.
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27846727/-current-progresses-in-developing-pet-radiopharmaceuticals-for-patients-in-the-czech-republic
#6
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
https://www.readbyqxmd.com/read/27787742/-18-f-fluorocholine-pet-ct-imaging-of-liver-cancer-radiopathologic-correlation-with-tissue-phospholipid-profiling
#7
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
https://www.readbyqxmd.com/read/27776943/focused-parathyroidectomy-without-intraoperative-parathormone-testing-is-safe-after-pre-operative-localization-with-18-f-fluorocholine-pet-ct
#8
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...
January 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27775938/18f-fluorocholine-pet-ct-of-incidental-male-breast-cancer
#9
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...
January 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27694173/evaluation-of-prostate-cancer-bone-metastases-with-18f-naf-and-18f-fluorocholine-pet-ct
#10
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
https://www.readbyqxmd.com/read/27675727/-18-f-fluorocholine-uptake-correlates-with-pathologic-evidence-of-recurrent-tumor-after-srs-for-brain-metastases
#11
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
https://www.readbyqxmd.com/read/27674108/salvage-treatment-in-patients-with-prostate-cancer-oligorecurrence-impact-of-18-f-fluorocholine-positron-emission-tomography-computed-tomography-on-clinical-decision-making
#12
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
https://www.readbyqxmd.com/read/27612033/fluorine-18-fluorocholine-pet-ct-localizes-hyperparathyroidism-in-patients-with-inconclusive-conventional-imaging-a-multicenter-study-from-the-netherlands
#13
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
https://www.readbyqxmd.com/read/27513849/-18-f-fluorocholine-dynamic-time-of-flight-pet-mr-imaging-in-patients-with-newly-diagnosed-intermediate-to-high-risk-prostate-cancer-initial-clinical-pathologic-comparisons
#14
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...
February 2017: Radiology
https://www.readbyqxmd.com/read/27509594/preclinical-acute-toxicity-biodistribution-pharmacokinetics-radiation-dosimetry-and-micropet-imaging-studies-of-18-f-fluorocholine-in-mice
#15
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
https://www.readbyqxmd.com/read/27383216/influence-of-four-radiotracers-in-pet-ct-on-diagnostic-accuracy-for-prostate-cancer-a-bivariate-random-effects-meta-analysis
#16
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
https://www.readbyqxmd.com/read/27342944/stereotactic-body-re-irradiation-therapy-for-locally-recurrent-prostate-cancer-after-external-beam-radiation-therapy-initial-report
#17
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
https://www.readbyqxmd.com/read/27321025/pet-based-personalized-management-in-clinical-oncology-an-unavoidable-path-for-the-foreseeable-future
#18
REVIEW
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
https://www.readbyqxmd.com/read/27319230/-hypercalcemia-symptoms-differential-diagnostics-and-treatment-or%C3%A2-importance-of-calcium-investigation
#19
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
https://www.readbyqxmd.com/read/27285094/-pet-ct-with-18f-fluorocholine-in-patients-with-prostatic-cancer-in-biochemical-recurrence
#20
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
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