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11C Acetate

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https://www.readbyqxmd.com/read/29562505/voxel-based-acetylcholinesterase-pet-study-in-early-and-late-onset-alzheimer-s-disease
#1
Shigeki Hirano, Hitoshi Shinotoh, Hitoshi Shimada, Tsuneyoshi Ota, Koichi Sato, Noriko Tanaka, Ming-Rong Zhang, Makoto Higuchi, Kiyoshi Fukushi, Toshiaki Irie, Satoshi Kuwabara, Tetsuya Suhara
BACKGROUND: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by chronic progressive cognitive decline and displays underlying brain cholinergic dysfunction, providing a rationale for treatment with cholinomimetic medication. The clinical presentations and courses of AD patients may differ by age of onset. OBJECTIVE: The objective of the present study was to illustrate the regional differences of brain acetylcholinesterase (AChE) activity as quantified by N-[11C]methylpiperidinyl-4-acetate ([11C]MP4A) and PET using parametric whole brain analysis and clarify those differences as a function of age...
March 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29309600/effect-of-cholinergic-treatment-depends-on-cholinergic-integrity-in-early-alzheimer-s-disease
#2
Nils Richter, Nora Beckers, Oezguer A Onur, Markus Dietlein, Marc Tittgemeyer, Lutz Kracht, Bernd Neumaier, Gereon R Fink, Juraj Kukolja
In early Alzheimer's disease, which initially presents with progressive loss of short-term memory, neurodegeneration especially affects cholinergic neurons of the basal forebrain. Pharmacotherapy of Alzheimer's disease therefore often targets the cholinergic system. In contrast, cholinergic pharmacotherapy of mild cognitive impairment is debated since its efficacy to date remains controversial. We here investigated the relationship between cholinergic treatment effects and the integrity of the cholinergic system in mild cognitive impairment due to Alzheimer's disease...
January 4, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29301928/the-utility-of-pet-ct-in-the-planning-of-external-radiation-therapy-for-prostate-cancer
#3
Jeremie Calais, Minsong Cao, Nicholas G Nickols
Radiotherapy and radical prostatectomy are the definitive treatment options for patients with localized prostate cancer. A rising level of prostate-specific antigen after radical prostatectomy indicates prostate cancer recurrence, and these patients may still be cured with salvage radiotherapy. To maximize chance for cure, the irradiated volumes should completely encompass the extent of disease. Therefore, accurate estimation of the location of disease is critical for radiotherapy planning in both the definitive and the salvage settings...
April 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29112010/potential-visualization-of-sorafenib-induced-acidosis-using-11c-acetate-pet-ct-in-patients-with-hepatocellular-carcinoma
#4
Seong Young Kwon, Dong-Yeon Kim, Jung-Joon Min, Woo Kyun Bae
C-acetate uptake could be increased in physiologic or inflammatory conditions without evidence of cancer. We report a hepatocellular carcinoma patient with sorafenib-induced metabolic acidosis, who showed increased hepatic uptake of C-acetate. C-acetate PET/CT might be a potentially useful surrogate marker to monitor these adverse effects via the changes in C-acetate uptake patterns from before to after drug withdrawal.
January 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29076914/small-bowel-metastasis-from-hepatocellular-carcinoma-detected-by-18f-fdg-pet-ct-but-not-by-11c-acetate-pet-ct
#5
Su Woong Yoo, Dong-Yeon Kim, Changho Lee, Jung-Joon Min, Seong Young Kwon
Gastrointestinal tract is rarely a metastatic site of hepatocellular carcinoma (HCC). We present a 43-year-old woman with small bowel metastasis from HCC in which metastasis was detected using F-FDG PET/CT. However, the site of metastasis showed no significant uptake on C-acetate PET/CT. C-acetate PET/CT has a limited value in HCC patients with suspected extrahepatic metastasis, compared with F-FDG PET/CT.
December 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28719629/multiparametric-11c-acetate-positron-emission-tomography-magnetic-resonance-imaging-in-the-assessment-and-staging-of-prostate-cancer
#6
Stephan H Polanec, Piotr Andrzejewski, Pascal A T Baltzer, Thomas H Helbich, Alexander Stiglbauer, Dietmar Georg, Georgios Karanikas, Martin Susani, Wolfgang Wadsak, Markus Margreiter, Markus Mitterhauser, Peter Brader, Katja Pinker
BACKGROUND: The aim of this study was to evaluate whether MP [11C]Acetate PET-MRI enables an accurate differentiation of benign and malignant prostate tumors as well as local and distant staging. MATERIALS AND METHODS: Fifty-six consecutive patients fulfilling the following criteria were included in this IRB-approved prospective study: elevated PSA levels or suspicious findings at digital rectal examination or TRUS; and histopathological verification. All patients underwent MP [11C]Acetate PET-MRI of the prostate performed on separate scanners with PET/CT using [11C]Acetate and 3T MP MR imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28686007/imaging-of-primary-liver-tumors-with-positron-emission-tomography
#7
REVIEW
Alexander R Haug
INTRODUCTION: The use of positron-emission tomography (PET) with fluorodeoxyglucose (FDG), 11C-acetate and radio-labelled choline such as 11C-choline or 18F-fluorocholine in the diagnosis of hepatocellular carcinoma (HCC), for risk stratification or therapy monitoring has emerged. This review aims to summarize the published results dealing with this issue. EVIDENCE ACQUISITION: PubMed database was searched until February 2017. Sensitivities, specificities, progression-free survival (PFS), survival and hazard ratios (HR) are reported...
September 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28390113/regulation-of-acetate-utilization-by-monocarboxylate-transporter-1-mct1-in-hepatocellular-carcinoma-hcc
#8
Jeong Yong Jeon, Misu Lee, Sang Hyun Whang, Jung-Whan Kim, Arthur Cho, Mijin Yun
Altered energy metabolism is a biochemical fingerprint of cancer cells. Hepatocellular carcinoma (HCC) shows reciprocal [18F]fluorodeoxyglucose (FDG) and [11C]acetate uptake, as revealed by positron emission tomography/computed tomography (PET/CT). Previous studies have focused on the role of FDG uptake in cancer cells. In this study, we evaluated the mechanism and roles of [11C]acetate uptake in human HCCs and cell lines. The expression of monocarboxylate transporters (MCTs) was assessed to determine the transporters of [11C]acetate uptake in HCC cell lines and human HCCs with different [11C]acetate uptake...
January 19, 2018: Oncology Research
https://www.readbyqxmd.com/read/28292473/placental-dimethyl-acetal-fatty-acid-derivatives-are-elevated-in-preeclampsia
#9
M Brien, L Berthiaume, I Rudkowska, P Julien, J F Bilodeau
Preeclampsia (PE) was shown to affect the placental content and the transfer of polyunsaturated fatty acids (PUFA) to the fetus. Plasmalogens, a type of phospholipids with a vinyl-ether link at the sn-1 position, play an antioxidant role and are specifically enriched in PUFA at the sn-2 position. In this study, we characterized plasmalogen-derived dimethyl acetal (DMA) fatty acid derivatives, 16:0 DMA, 18:0 DMA, 9c-/11c-18:1 DMA and PUFA in the placenta of normotensive (n = 20) and PE (n = 20) pregnancies, according to the sampling site: peri-insertion or periphery...
March 2017: Placenta
https://www.readbyqxmd.com/read/28129334/a-novel-positron-emission-tomography-pet-approach-to-monitor-cardiac-metabolic-pathway-remodeling-in-response-to-sunitinib-malate
#10
Alice C O'Farrell, Rhys Evans, Johanna M U Silvola, Ian S Miller, Emer Conroy, Suzanne Hector, Maurice Cary, David W Murray, Monika A Jarzabek, Ashwini Maratha, Marina Alamanou, Girish Mallya Udupi, Liam Shiels, Celine Pallaud, Antti Saraste, Heidi Liljenbäck, Matti Jauhiainen, Vesa Oikonen, Axel Ducret, Paul Cutler, Fionnuala M McAuliffe, Jacques A Rousseau, Roger Lecomte, Suzanne Gascon, Zoltan Arany, Bonnie Ky, Thomas Force, Juhani Knuuti, William M Gallagher, Anne Roivainen, Annette T Byrne
Sunitinib is a tyrosine kinase inhibitor approved for the treatment of multiple solid tumors. However, cardiotoxicity is of increasing concern, with a need to develop rational mechanism driven approaches for the early detection of cardiac dysfunction. We sought to interrogate changes in cardiac energy substrate usage during sunitinib treatment, hypothesising that these changes could represent a strategy for the early detection of cardiotoxicity. Balb/CJ mice or Sprague-Dawley rats were treated orally for 4 weeks with 40 or 20 mg/kg/day sunitinib...
2017: PloS One
https://www.readbyqxmd.com/read/27919970/11c-acetate-pet-ct-compared-to-99mtc-hdp-bone-scintigraphy-in-primary-staging-of-high-risk-prostate-cancer
#11
Sara Strandberg, Camilla Thellenberg Karlsson, Mattias Ogren, Jan Axelsson, Katrine Riklund
AIM: The aim of this study was to evaluate the detection rate of bone metastases and the added value of (11)C-acetate (ACE) positron-emission tomography/computed tomography (PET/CT) compared to bone scintigraphy (BS) in high-risk prostate cancer (PC). MATERIALS AND METHODS: A total of 66 untreated patients with high-risk PC with ACE-PET/CT and planar BS findings within 3 months of each other were retrospectively enrolled. Findings were compared and verified with follow-up data after an average of 26 months...
2016: Anticancer Research
https://www.readbyqxmd.com/read/27860163/11c-acetate-positron-emission-tomography-computed-tomography-imaging-for-detection-of-recurrent-disease-after-radical-prostatectomy-or-radiotherapy-in-patients-with-prostate-cancer
#12
Lukas Hendrik Esch, Melanie Fahlbusch, Peter Albers, Hubertus Hautzel, Volker Müller-Mattheis
OBJECTIVES: To evaluate, in a prospective study, the effectiveness of computed tomography (CT)-matched 11C-acetate (AC) positron-emission tomography (PET) in patients with prostate cancer (PCa) who had prostate-specific antigen (PSA) relapse after radical prostatectomy (RP) or radiotherapy (RT). PATIENTS AND METHODS: In 103 relapsing patients after RP (n = 97) or RT (n = 6) AC-PET images and CT scans were obtained. In patients with AC-PET-positive results with localized PCa recurrence, detected lesions were resected and histologically verified or, after local RT, followed-up by PSA testing...
September 2017: BJU International
https://www.readbyqxmd.com/read/27694168/evaluation-of-prostate-cancer-with-11c-acetate-pet-ct
#13
REVIEW
Claudio Spick, Ken Herrmann, Johannes Czernin
In this article, we will first describe the metabolic fate of (11)C-acetate; then discuss its biodistribution in health and disease; and subsequently focus on its key clinical applications, the detection and localization of prostate cancer tissue in patients with primary or recurrent disease. Finally, we will discuss the potential role of (11)C-acetate in the context of other prostate cancer imaging probes and non-radionuclide-based imaging approaches.
October 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27648704/dual-tracer-pet-ct-using-18f-fdg-and-11c-acetate-in-gastric-adenocarcinoma-with-liver-metastasis
#14
Varut Vardhanabhuti, Anthony W I Lo, Elaine Y P Lee, Simon Y K Law
Dual-tracer F-FDG and C-acetate PET/CT has been shown to demonstrate good sensitivity and specificity for the diagnosis of hepatocellular carcinoma. We present a case of gastric adenocarcinoma with liver metastasis with positive uptake of F-FDG and C-acetate highlighting an unusual appearance in dual-tracer PET/CT.
November 2016: Clinical Nuclear Medicine
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
#15
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/27271230/update-on-novel-imaging-techniques-for-the-detection-of-lymph-node-metastases-in-bladder-cancer
#16
REVIEW
Antti P Salminen, Ivan Jambor, Kari T Syvanen, Peter J Bostrom
Staging of muscle-invasive bladder cancer (MIBC) remains a challenge. It is generally acknowledged that the most commonly used imaging techniques have a trend to either upstage or downstage the disease. The aim of this review article is to evaluate the currently available scientific evidence for the use of imaging modalities in preoperative bladder cancer staging with special attention to the detection of lymph node metastasis (LNM). A non-systematic literature search utilizing PubMed database with terms MIBC and LN and MRI or PET or CT was performed with the search limited to articles published between 2010 and 2015...
April 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27193789/positron-emission-tomography-in-imaging-evaluation-of-staging-restaging-treatment-response-and-prognosis-in-prostate-cancer
#17
REVIEW
Hossein Jadvar
Prostate cancer is a prevalent public health problem worldwide. While imaging has played a major role in this disease, there still remain many challenges and opportunities. Positron emission tomography with various physiologically based radiotracers is fundamentally suited to interrogate this biologically and clinically heterogeneous disease along the course of its natural history. In this article, I review briefly the published evidence for the use of positron emission tomography with 18F-fluorodeoxyglucose, 11C-acetate, and 18F- or 11C-choline in the imaging evaluation of prostate cancer...
May 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27143559/metabolic-activity-of-brown-beige-and-white-adipose-tissues-in-response-to-chronic-adrenergic-stimulation-in-male-mice
#18
Sébastien M Labbé, Alexandre Caron, Kanta Chechi, Mathieu Laplante, Roger Lecomte, Denis Richard
Classical brown adipocytes such as those found in interscapular brown adipose tissue (iBAT) represent energy-burning cells, which have been postulated to play a pivotal role in energy metabolism. Brown adipocytes can also be found in white adipose tissue (WAT) depots [e.g., inguinal WAT (iWAT)] following adrenergic stimulation, and they have been referred to as "beige" adipocytes. Whether the presence of these adipocytes, which gives iWAT a beige appearance, can confer a white depot with some thermogenic activity remains to be seen...
July 1, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27055129/11c-acetate-pet-ct-monitoring-therapy-of-multiple-myeloma
#19
Wenjia Zhu, Yonghong Dang, Yanru Ma, Fang Li, Li Huo
A 67-year-old man with newly diagnosed multiple myeloma underwent both FDG and C-acetate PET/CT sequentially on different days. There was increased FDG activity only in L1 vertebral body, but there was diffuse abnormal C-acetate activity throughout the skeletal system. After the successful therapy, the patient who was on remission clinically underwent follow-up PET/CT scans. Interestingly, L1 remained to have elevated FDG, although with less intensity. In contrast, there was no abnormal C-acetate activity anywhere in the body...
July 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/26907645/11c-acetate-positron-emission-tomography-for-detection-of-occult-metastatic-recurrence-in-hepatoblastoma
#20
Anthony Pak-Yin Liu, Ka-Nin Wong, Queenie Wing-Shan See, Godfrey Chi-Fung Chan, Alan Kwok-Shing Chiang
Hepatoblastoma is the most common primary liver cancer in the pediatric population. Disease relapse might be occult and difficult to detect. C-acetate positron emission tomography has been applied in patients with hepatocellular carcinoma due to the insensitivity of fluorodeoxyglucose, but data on hepatoblastoma patients have been scarce. We describe the use of C-acetate positron emission tomography/computed tomography scan as a sensitive method in the identification of an occult bony metastatic recurrence in a 6-year-old girl with a history of hepatoblastoma treated with chemotherapy...
May 2016: Journal of Pediatric Hematology/oncology
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