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https://www.readbyqxmd.com/read/29774076/the-human-somatostatin-receptor-type-2-as-an-imaging-and-suicide-reporter-gene-for-pluripotent-stem-cell-derived-therapy-of-myocardial-infarction
#1
Katrien Neyrinck, Natacha Breuls, Bryan Holvoet, Wouter Oosterlinck, Esther Wolfs, Hubert Vanbilloen, Olivier Gheysens, Robin Duelen, Willy Gsell, Ivo Lambrichts, Uwe Himmelreich, Catherine M Verfaillie, Maurilio Sampaolesi, Christophe M Deroose
Rationale: Pluripotent stem cells (PSCs) are being investigated as a cell source for regenerative medicine since they provide an infinitive pool of cells that are able to differentiate towards every cell type of the body. One possible therapeutic application involves the use of these cells to treat myocardial infarction (MI), a condition where billions of cardiomyocytes (CMs) are lost. Although several protocols have been developed to differentiate PSCs towards CMs, none of these provide a completely pure population, thereby still posing a risk for neoplastic teratoma formation...
2018: Theranostics
https://www.readbyqxmd.com/read/29764553/-interposed-abdominal-pulling-pressing-cardiopulmonary-resuscitation-improve-the-resuscitation-effect-for-patients-with-cardiac-arrest
#2
Dabing Wang, Xiaonan Feng, Yujuan Han
OBJECTIVE: To study the impact of interposed abdominal pulling-pressing cardiopulmonary resuscitation (IAPP-CPR) for patients with cardiac arrest (CA). METHODS: A prospective study was conducted. A total of 122 CA patients admitted to Department of Emergency of Shandong Provincial Mining Industry Group Company Central Hospital from July 2013 to December 2017 were enrolled. They were divided into standard cardiopulmonary resuscitation (S-CPR) group (n = 62) and IAPP-CPR group (n = 60) according to order of admission...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29761309/is-there-a-role-for-cardiac-positron-emission-tomography-in-hypertrophic-cardiomyopathy
#3
Paco E Bravo
Coronary microvascular dysfunction and, its functional consequence, myocardial ischemia are common pathologic features in patients with hypertrophic cardiomyopathy (HCM). Both have been commonly invoked as potential triggers of and/or contributors to the underlying pathophysiological processes leading to heart failure, and malignant ventricular arrhythmias. Positron emission tomography (PET) with myocardial blood flow quantification provides a unique opportunity to evaluate the integrity and function of the coronary microcirculation in HCM...
May 14, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29761308/can-positron-emission-tomography-help-stratify-the-risk-of-sudden-cardiac-death-in-patients-with-hypertrophic-cardiomyopathy
#4
EDITORIAL
G Neal Kay
No abstract text is available yet for this article.
May 14, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29754161/motion-corrected-whole-heart-pet-mr-for-the-simultaneous-visualisation-of-coronary-artery-integrity-and-myocardial-viability-an-initial-clinical-validation
#5
Camila Munoz, Karl P Kunze, Radhouene Neji, Teresa Vitadello, Christoph Rischpler, René M Botnar, Stephan G Nekolla, Claudia Prieto
PURPOSE: Cardiac PET-MR has shown potential for the comprehensive assessment of coronary heart disease. However, image degradation due to physiological motion remains a challenge that could hinder the adoption of this technology in clinical practice. The purpose of this study was to validate a recently proposed respiratory motion-corrected PET-MR framework for the simultaneous visualisation of myocardial viability (18 F-FDG PET) and coronary artery anatomy (coronary MR angiography, CMRA) in patients with chronic total occlusion (CTO)...
May 12, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29751831/intravenous-injection-of-allogeneic-umbilical-cord-derived-multipotent-mesenchymal-stromal-cells-reduces-the-infarct-area-and-ameliorates-cardiac-function-in-a-porcine-model-of-acute-myocardial-infarction
#6
Meikuang Lim, Weiqiang Wang, Lu Liang, Zhi-Bo Han, Zongjin Li, Jie Geng, Meng Zhao, Honghong Jia, Jie Feng, Zhe Wei, Baoquan Song, Jiemin Zhang, Jun Li, Tianwen Liu, Fan Wang, Ting Li, Jianming Li, Yihu Fang, Jianhua Gao, Zhongchao Han
BACKGROUND: Multipotent mesenchymal stromal cell (MSC) therapy has been widely recognized as a feasible strategy for regenerating injured myocardial tissue. However, little is known about the efficacy of intravenous injection of allogeneic umbilical cord (UC) MSCs in preclinical models of porcine myocardial infarction. METHODS: Different dosages of allogeneic UC-MSCs or the vehicle [phosphate-buffered saline (PBS)] were delivered intravenously into an acute myocardial infarction (AMI) porcine model twice after coronary ligation...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29724584/stereotactic-body-radiation-therapy-for-heart-base-tumors-in-six-dogs
#7
L M Magestro, T L Gieger, M W Nolan
INTRODUCTION: Heart-base tumors are increasingly treated with radiotherapy, yet safety and efficacy are incompletely understood. This case series describes outcomes after stereotactic body radiation therapy (SBRT) for presumed chemodectoma. ANIMALS: Six pet dogs. METHODS: A retrospective study was performed, including dogs with a clinical diagnosis of chemodectoma and treatment with three-fraction SBRT (30 Gy total). RESULTS: Heart-base tumors, presumed or confirmed to be chemodectomas, were diagnosed via histopathology or imaging...
April 30, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29721764/18-fdg-pet-in-a-patient-cohort-suspected-for-cardiac-sarcoidosis-right-ventricular-uptake-is-associated-with-pathological-uptake-in-mediastinal-lymph-nodes
#8
Heikki Tuominen, Atte Haarala, Antti Tikkakoski, Mika Kähönen, Kjell Nikus, Kalle Sipilä
INTRODUCTION: In up to 65% of cardiac sarcoidosis patients, the disease is confined to the heart. Diagnosing isolated cardiac sarcoidosis is challenging due to the low sensitivity of endomyocardial biopsy. If cardiac sarcoidosis is part of biopsy-confirmed systemic sarcoidosis, the diagnosis can be based on cardiac imaging studies. We compared the imaging features of patients with isolated cardiac FDG uptake on positron emission tomography with those who had findings indicative of systemic sarcoidosis...
May 2, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29720565/implementation-of-a-cardiac-pet-stress-program-comparison-of-outcomes-to-the-preceding-spect-era
#9
Stacey Knight, David B Min, Viet T Le, Kent G Meredith, Ritesh Dhar, Santanu Biswas, Kurt R Jensen, Steven M Mason, Jon-David Ethington, Donald L Lappe, Joseph B Muhlestein, Jeffrey L Anderson, Kirk U Knowlton
BACKGROUND: Cardiac positron emission testing (PET) is more accurate than single photon emission computed tomography (SPECT) at identifying coronary artery disease (CAD); however, the 2 modalities have not been thoroughly compared in a real-world setting. We conducted a retrospective analysis of 60-day catheterization outcomes and 1-year major adverse cardiovascular events (MACE) after the transition from a SPECT- to a PET-based myocardial perfusion imaging (MPI) program. METHODS: MPI patients at Intermountain Medical Center from January 2011-December 2012 (the SPECT era, n = 6,777) and January 2014-December 2015 (the PET era, n = 7,817) were studied...
May 3, 2018: JCI Insight
https://www.readbyqxmd.com/read/29720109/altered-cerebral-glucose-metabolism-normalized-in-a-patient-with-a-pediatric-autoimmune-neuropsychiatric-disorder-after-streptococcal-infection-pandas-like-condition-following-treatment-with-plasmapheresis-a-case-report
#10
A H Nave, P Harmel, R Buchert, L Harms
BACKGROUND: Pediatric autoimmune neuropsychiatric disorder after streptococcal infection (PANDAS) is a specific autoimmune response to group-A streptococcal infections in children and adolescents with a sudden onset of obsessive-compulsive disorders or tic-like symptoms. Cerebral metabolic changes of patients have not yet been observed. CASE PRESENTATION: We present a case of an 18-year old male with a PANDAS-like condition after developing tic-like symptoms and involuntary movements three weeks after cardiac surgery...
May 2, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29717407/simultaneous-determination-of-dynamic-cardiac-metabolism-and-function-using-pet-mri
#11
Gregory P Barton, Lauren Vildberg, Kara Goss, Niti Aggarwal, Marlowe Eldridge, Alan B McMillan
BACKGROUND: Cardiac metabolic changes in heart disease precede overt contractile dysfunction. However, metabolism and function are not typically assessed together in clinical practice. The purpose of this study was to develop a cardiac positron emission tomography/magnetic resonance (PET/MR) stress test to assess the dynamic relationship between contractile function and metabolism in a preclinical model. METHODS: Following an overnight fast, healthy pigs (45-50 kg) were anesthetized and mechanically ventilated...
May 1, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29717368/hybrid-cardiac-imaging-using-pet-mri-a-joint-position-statement-by-the-european-society-of-cardiovascular-radiology-escr-and-the-european-association-of-nuclear-medicine-eanm
#12
Felix Nensa, Fabian Bamberg, Christoph Rischpler, Leon Menezes, Thorsten D Poeppel, Christian la Fougère, Dietrich Beitzke, Sazan Rasul, Christian Loewe, Konstantin Nikolaou, Jan Bucerius, Andreas Kjaer, Matthias Gutberlet, Niek H Prakken, Rozemarijn Vliegenthart, Riemer H J A Slart, Stephan G Nekolla, Martin L Lassen, Bernd J Pichler, Thomas Schlosser, Alexis Jacquier, Harald H Quick, Michael Schäfers, Marcus Hacker
Positron emission tomography (PET) and magnetic resonance imaging (MRI) have both been used for decades in cardiovascular imaging. Since 2010, hybrid PET/MRI using sequential and integrated scanner platforms has been available, with hybrid cardiac PET/MR imaging protocols increasingly incorporated into clinical workflows. Given the range of complementary information provided by each method, the use of hybrid PET/MRI may be justified and beneficial in particular clinical settings for the evaluation of different disease entities...
May 2, 2018: European Radiology
https://www.readbyqxmd.com/read/29708910/primary-cardiac-lymphoma-the-role-of-multimodality-imaging
#13
Marco A Perrone, Alfredo Intorcia, Riccardo Morgagni, Massimo Marchei, Domenico Sergi, Luca Pugliese, Paolo Ferrante, Marcello Chiocchi, Mauro Borzi, Francesco Romeo
: Primary cardiac lymphoma is a rare form of non-Hodgkin lymphoma that involves the heart and can extend to the pericardium and great vessels. It is estimated that primary cardiac lymphomas account for 1.3% of primary cardiac tumors and 0.5% of all extranodal non-Hodgkin lymphomas. Definitive diagnosis is achieved with cytological and histological evaluation. Processing multimedia images is the best way to evaluate the size and extent of the tumor. Echocardiography, computerized tomography, MRI and PET are the best imaging tools in cardiac tumors...
April 27, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29706127/utility-of-the-18-f-florbetapir-positron-emission-tomography-in-systemic-amyloidosis
#14
Jaume Mestre-Torres, Carles Lorenzo-Bosquet, Gemma Cuberas-Borrós, Mercedes Gironella, Roser Solans-Laque, Andreu Fernández-Codina, Segundo Bujan-Rivas, Joan Castell-Conesa, Fernando Martínez-Valle
Amyloidosis comprises a group of heterogeneous conditions. To ascertain the burden of disease is important because it can determine the treatment as well as the evolution of the disease. Recent reports have shown good results in diagnosing cardiac amyloidosis using 18 F-florbetapir. We hypothesize that combining whole body PET/CT with 18 F-Florbetapir can be useful to characterize the burden of the disease. We included 25 patients, 13 of them with different types of amyloidosis, and 12 with Alzheimer's disease as controls...
April 28, 2018: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/29698545/the-role-of-molecular-imaging-in-assessing-degenerative-parkinsonism-an-updated-review
#15
Nicolas Nicastro, Valentina Garibotto, Pierre R Burkhard
Diagnosing degenerative forms of parkinsonism still relies on a thorough clinical assessment, which in Parkinson's disease involves the presence of an asymmetric bradykinesia with rest tremor and/or rigidity that respond substantially to levodopa. Conversely, atypical forms, including multiple system atrophy, progressive supranuclear palsy and corticobasal degeneration, exhibit additional features (cerebellar or pyramidal signs, early postural instability), a poor response to dopamine replacement therapy and a bad prognosis...
April 26, 2018: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29695526/approach-to-diagnosis-of-cardiovascular-implantable-electronic-device-infection
#16
Daniel C DeSimone, M Rizwan Sohail
Device infection remains a significant challenge as clinical indications for cardiovascular implantable electronic devices (CIED) therapy continue to expand beyond prevention and treatment of cardiac arrhythmias. Patients receiving CIED therapy are now older with significant comorbidities, placing them at higher risk of complications including infection. CIED infection warrants complete device removal as retention is associated with unacceptably high risk of relapse and increased mortality. However, accurate diagnosis of CIED infections remains a significant challenge and is based on a combination of findings on physical examination, microbiological and laboratory testing, and advanced imaging such as transesophageal echocardiography or positron emission tomography...
April 25, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29681784/comparison-among-reconstruction-algorithms-for-quantitative-analysis-of-11-c-acetate-cardiac-pet-imaging
#17
Ximin Shi, Nan Li, Haiyan Ding, Yonghong Dang, Guilan Hu, Shuai Liu, Jie Cui, Yue Zhang, Fang Li, Hui Zhang, Li Huo
Objective: Kinetic modeling of dynamic 11 C-acetate PET imaging provides quantitative information for myocardium assessment. The quality and quantitation of PET images are known to be dependent on PET reconstruction methods. This study aims to investigate the impacts of reconstruction algorithms on the quantitative analysis of dynamic 11 C-acetate cardiac PET imaging. Methods: Suspected alcoholic cardiomyopathy patients ( N = 24) underwent 11 C-acetate dynamic PET imaging after low dose CT scan...
2018: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29681578/spontaneous-reduction-in-abnormal-myocardial-uptake-of-fluorine-18-fluorodeoxygluose-in-a-patient-with-cardiac-sarcoidosis
#18
Fumio Terasaki, Shu-Ichi Fujita, Yumiko Kanzaki, Yoshinobu Hirose, Nobukazu Ishizaka
Fluorine-18 fluorodeoxygluose (18 F-FDG) positron emission tomography (PET) is a useful tool for evaluating disease activity in sarcoidosis including cardiac involvement. A 67-year-old patient who developed atrioventricular block requiring permanent pacemaker implantation was diagnosed with cardiac sarcoidosis. The patient did not undergo steroid or immunosuppressive therapy but underwent serial 18 F-FDG PET examination, which showed spontaneous reduction in the myocardial FDG uptake, indicating the remission of immune-inflammatory activity...
April 20, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29680350/novel-pet-and-near-infrared-imaging-probes-for-the-specific-detection-of-bacterial-infections-associated-with-cardiac-devices
#19
Kiyoko Takemiya, Xinghai Ning, Wonewoo Seo, Xiaojian Wang, Rafi Mohammad, Giji Joseph, Jane S Titterington, Colleen S Kraft, Jonathan A Nye, Niren Murthy, Mark M Goodman, W Robert Taylor
OBJECTIVES: The aim of this study was to develop imaging agents to detect early stage infections in implantable cardiac devices. BACKGROUND: Bacteria ingest maltodextrins through the specific maltodextrin transporter. We developed probes conjugated with either a fluorescent dye (maltohexaose fluorescent dye probe [MDP]) or a F-18 (F18 fluoromaltohexaose) and determined their usefulness in a model of infections associated with implanted cardiac devices. METHODS: Stainless steel mock-ups of medical devices were implanted subcutaneously in rats...
April 13, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29678336/stress-myocardial-blood-flow-heterogeneity-is-a-positron-emission-tomography-biomarker-of-ventricular-arrhythmias-in-patients-with-hypertrophic-cardiomyopathy
#20
Dai-Yin Lu, Hulya Yalçin, Fatih Yalçin, Min Zhao, Sanjay Sivalokanathan, Ines Valenta, Abdel Tahari, Martin G Pomper, Theodore P Abraham, Thomas H Schindler, M Roselle Abraham
Patients with hypertrophic cardiomyopathy (HC) are at increased risk of sudden cardiac death. Abnormalities in myocardial blood flow (MBF) detected by positron emission tomography (PET) are common in HC, but a PET marker that identifies patients at risk of sudden cardiac death is lacking. We hypothesized that disparities in regional myocardial perfusion detected by PET would identify patients with HC at risk of ventricular arrhythmias. To test this hypothesis, we quantified global and regional MBFs by 13 NH3 -PET at rest and at stress, and developed a heterogeneity index to assess MBF heterogeneity in 133 symptomatic patients with HC...
February 6, 2018: American Journal of Cardiology
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