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Ct cardiology

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https://www.readbyqxmd.com/read/27906915/the-value-of-ct-cardiac-angiography-and-ct-calcium-score-testing-in-a-modern-cardiology-service-in-new-zealand-a-report-of-a-single-centre-eight-year-experience-from-5-237-outpatient-procedures
#1
Chris Ellis, Greg Gamble, Colin Edwards, Niels van Pelt, Ruvin Gabriel, Boris Lowe, Jonathan Christiansen, Andrew To, Helen Winch, Mark Osborne, John Ormiston, Malcolm Legget
BACKGROUND: Computed tomographic (CT) cardiac angiography is of increasing value in several areas of patient management in cardiology. We assessed the ability of CT cardiac angiography to effectively 'rule out' severe coronary stenoses in patients presenting with 'atypical' symptoms and/or an equivocal stress test, which offers a new approach to the management of coronary artery disease. We also examined the use of the CT calcium score test in cardiovascular (CVS) risk assessment. METHODS: From a large single centre (Mercy Hospital) in Auckland, using a prospectively acquired, comprehensive database, we audited the entire eight-year experience of 5,169 patients (7/8/06 to 31/1/14) who underwent 5,237 64-slice computed tomographic (CT) cardiac angiogram or CT calcium score tests (GE Lightspeed scanner)...
December 2, 2016: New Zealand Medical Journal
https://www.readbyqxmd.com/read/27858404/advances-in-multimodal-molecular-imaging
#2
Luigi Auletta, Matteo Gramanzini, Gargiulo Sara, Sandra Albanese, Marco Salvatore, Adelaide Greco
INTRODUCTION: Preclinical molecular imaging is an emerging field. Improving the ability of scientists to study the molecular basis of human pathology in animals is of the utmost importance for future advances in all fields of human medicine. Moreover, the possibility of developing new imaging techniques or of implementing old ones adapted to the clinic is a significant area. EVIDENCE ACQUISITION: Cardiology, neurology, immunology and oncology have all been studied with preclinical molecular imaging...
November 18, 2016: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27822623/-esc-and-aha-guidelines-2015-on-endocarditis-in-competition-or-synchrony
#3
Bernhard Maisch
In the 2015 guidelines of the European Society of Cardiology (ESC) and the American Heart Association (AHA) on infective endocarditis, the diagnostics are based on the modified Duke criteria. The diagnosis can be confirmed by a combination of micro-organisms demonstrated in culture or in situ, with the detection of valvular lesions or abscess formation by an imaging modality using echocardiography, positron emission tomography computed tomography (PET/CT), cardio-CT or nuclear medical methods. The management should be further improved by an interdisciplinary endocarditis team in a specifically designated reference center...
December 2016: Herz
https://www.readbyqxmd.com/read/27790495/acute-right-heart-failure-in-a-patient-with-right-heart-thrombus-and-pulmonary-thromboembolism
#4
Mohammad Mostafa Ansari-Ramandi, Samaneh Ansari-Ramandi, Nasim Naderi
Right Heart Thrombus (RiHT) management is really controversial, and appropriate guidelines are not present for the management. In patients referring with RiHT and Pulmonary Embolism (PE), there are three ways of managing these patients. Out of the three, one is thrombectomy, which is with high risk taking in mind the comorbidities these patients have. The other is using thrombolytic which, in many cases is contraindicated or with high risk. The other less effective way is full anticoagulation. It is really controversial to choose between these ways of management and no clear approach is present...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27767408/a-case-of-acute-pericarditis-following-intravenous-injection-of-crushed-morphine-tablets
#5
Ryan J Anderson, Bryan Corbett, Binh T Ly
A 37-year-old male presented with sharp, severe chest pain following seven days of intravenous injection of crushed morphine tablets. The chest pain was positional and pleuritic in nature and resolved with leaning forward. Work-up was notable for an ECG with inferior and anterolateral PR depressions as well as a CT chest with diffuse centrilobular nodules. Per radiology, the CT findings along with the patient's history were concerning for pulmonary granulomatosis from deposition of talc or some other foreign body...
November 2016: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/27721936/role-of-radionuclide-imaging-for-diagnosis-of-device-and-prosthetic-valve-infections
#6
Jean-François Sarrazin, François Philippon, Mikaël Trottier, Michel Tessier
Cardiovascular implantable electronic device (CIED) infection and prosthetic valve endocarditis (PVE) remain a diagnostic challenge. Cardiac imaging plays an important role in the diagnosis and management of patients with CIED infection or PVE. Over the past few years, cardiac radionuclide imaging has gained a key role in the diagnosis of these patients, and in assessing the need for surgery, mainly in the most difficult cases. Both (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) and radiolabelled white blood cell single-photon emission computed tomography/computed tomography (WBC SPECT/CT) have been studied in these situations...
September 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27689518/a-retained-foreign-body-granuloma-mimicking-a-left-ventricular-psuedoanuerysm
#7
Davide Patrini, Mohamed Amirali Gulamhussein, Pasquale Pellegrino, Marianna Redaelli, Jonathan Pararajasingham, David Lawrence, Nikolaos Panagiotopoulos
INTRODUCTION: Gossypiboma, also referred to as a textiloma, gauzoma or muslinoma describe a mass in the body composed of a central cotton core surrounded by a foreign body reaction. It has an estimated incidence of 1/1000-1/10000 surgeries, occurring in the abdomen (56%), pelvis (18%) and least commonly the thorax (11%) and represents an unfortunate event for both the patient and the operating surgeon with severe liability implications. PRESENTATION OF CASE: We report a case of a 49-year-old male with Marfan Syndrome who was admitted to the cardiology department with a four day history of shortness of breath and associated dull, non-radiating chest pain...
September 23, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27659455/pet-mr-yet-another-tesla
#8
Markus Schwaiger, Karl Kunze, Christoph Rischpler, Stephan G Nekolla
After the successful introduction of PET/CT as a multimodality imaging technique, PET/MR has subsequently emerged as an attractive instrumentation for applications in neurology, oncology, and cardiology. Simultaneous data acquisition combining structural, functional, and molecular imaging provides a unique platform to link various aspects of cardiac performance for the non-invasive characterization of cardiovascular disease phenotypes. Specifically, tissue characterization by MR techniques with and without contrast agents allows for functional parameters such as LGE, myocardial perfusion, and T1 maps as well as an estimate of extracellular volume...
September 22, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27634411/a-33-year-old-man-with-atypical-chest-pain
#9
Alastair J Moss, Marc R Dweck, Andrew D Flapan
CLINICAL INTRODUCTION: A 33-year-old man with no history of coronary artery disease presented to the rapid access cardiology clinic with an episode of atypical anginal chest pain. He had a 15 pack-year history of smoking and a family history of myocardial infarction under the age of 55. Physical examination and exercise ECG testing were unremarkable. On assessment in the cardiology clinic, blood sampling was notable for an elevated high-sensitivity troponin I of 61 ng/L (99% upper reference level, 34 ng/L)...
September 15, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27624448/giant-oesophageal-leiomyoma-causing-severe-hypertension
#10
Andrea Lovece, Pamela Milito, Emanuele Asti, Luigi Bonavina
Leiomyoma is the most common oesophageal tumour and is symptomatic in about half of the patients. Dysphagia is the most common symptom. A 41-year-old woman presented with recent onset of severe orthostatic hypertension. During the cardiological work-up, a mediastinal mass was found at transthoracic echocardiogram. Further investigation (upper gastrointestinal endoscopy, endoscopic ultrasonography, CT scan and cardiac MRI) confirmed the diagnosis of a large oesophageal submucosal mass compressing the supradiaphragmatic inferior vena cava...
2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27598207/clinical-utility-and-future-applications-of-pet-ct-and-pet-cmr-in-cardiology
#11
REVIEW
Jonathan A Pan, Michael Salerno
Over the past several years, there have been major advances in cardiovascular positron emission tomography (PET) in combination with either computed tomography (CT) or, more recently, cardiovascular magnetic resonance (CMR). These multi-modality approaches have significant potential to leverage the strengths of each modality to improve the characterization of a variety of cardiovascular diseases and to predict clinical outcomes. This review will discuss current developments and potential future uses of PET/CT and PET/CMR for cardiovascular applications, which promise to add significant incremental benefits to the data provided by each modality alone...
September 2, 2016: Diagnostics
https://www.readbyqxmd.com/read/27572926/current-status-of-nuclear-cardiology-practice-in-latin-america-and-the-caribbean
#12
Diana Paez, Amalia Peix, Pilar Orellana, Joao Vitola, Fernando Mut, Claudia Gutiérrez, Crosby Plaza, Tarik Becic, Maurizio Dondi, Enrique Estrada
The burden of cardiovascular diseases (CVDs) in the world is ever growing. They represent the first cause of death worldwide and in Latin America. Nuclear cardiology has a well-established role in the management of patient with CVDs and is being increasingly integrated into the healthcare systems in the region. However, there remains variability as to the infrastructure available across the countries, in terms of existing technology, radiopharmaceuticals, and human resources. The approximate number of gamma (γ) cameras in the region is 1348, with an average of 2...
August 29, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27550664/comments-on-potential-health-effects-of-mri-induced-dna-lesions-quality-is-more-important-to-consider-than-quantity
#13
REVIEW
M A Hill, P O'Neill, W G McKenna
Magnetic resonance imaging (MRI) is increasingly being used in cardiology to detect heart disease and guide therapy. It is mooted to be a safer alternative to imaging techniques, such as computed tomography (CT) or coronary angiographic imaging. However, there has recently been an increased interest in the potential long-term health risks of MRI, especially in the light of the controversy resulting from a small number of research studies reporting an increase in DNA damage following exposure, with calls to limit its use and avoid unnecessary examination, according to the precautionary principle...
November 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/27540423/recent-advances-in-nuclear-cardiology
#14
REVIEW
Won Woo Lee
Nuclear cardiology is one of the major fields of nuclear medicine practice. Myocardial perfusion studies using single-photon emission computed tomography (SPECT) have played a crucial role in the management of coronary artery diseases. Positron emission tomography (PET) has also been considered an important tool for the assessment of myocardial viability and perfusion. However, the recent development of computed tomography (CT)/magnetic resonance imaging (MRI) technologies and growing concerns about the radiation exposure of patients remain serious challenges for nuclear cardiology...
September 2016: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27535287/intracardiac-bone-cement-embolism-as-a-complication-of-vertebroplasty-management-strategy
#15
Catherine Hatzantonis, Marcin Czyz, Renata Pyzik, Bronek M Boszczyk
BACKGROUND: Vertebroplasty carries multiple complications due to the leakage of polymethylmethacrylate (PMMA) into the venous system through the iliolumbar or epidural veins. The rate of venous cement complications may vary from 1 to 10 %, with cement extravasation into the venous system in 24 % of patients. Emboli may further migrate into the right heart chambers and pulmonary arteries. Patients may vary in presentation from asymptomatic or symptoms such as syncope to life-threatening complications...
August 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27516448/variations-in-pet-mri-operations-results-from-an-international-survey-among-39-active-sites
#16
Wolfgang Peter Fendler, Johannes Czernin, Ken Herrmann, Thomas Beyer
: Information has been collected from PET/MRI operational sites to identify its present and future applications. This may help to focus discussions on common interests of the PET/MRI community. METHODS: A web-based survey of PET/MRI users was conducted from June to October 2015. The survey was composed of 26 questions related to the PET/MRI center, present use and imaging protocols, and perspectives on key applications. RESULTS: Responses were collected from 39 international sites that operated PET/MRI for a median of 30 mo (range, 2-62 mo)...
December 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27466865/accuracy-of-intravascular-ultrasound-evaluation-for-the-assessment-of-native-valve-measures-in-patients-undergoing-tavi-preliminary-results
#17
Emanuela de Cillis, Annamaria Dachille, Francesco Giardinelli, Tommaso Acquaviva, Alessandro Santo Bortone
INTRODUCTION: Transcatheter aortic valve implantation (TAVI) technique represents a real revolution in the field of interventional cardiology and medicine, in particular for the treatment of severe aortic valve stenosis in elderly patients or in patients when the periprocedural risk for the traditional surgical option is considered too high, as an alternative to the traditional aortic valve replacement. Although experience on the valves of the last generation is still limited in terms of time, the data currently available are definitely moving in the direction of a minimum hospital mortality (1%) as well as a drastic reduction in the incidence of complications when compared to the devices of the previous generation...
July 29, 2016: Surgical Technology International
https://www.readbyqxmd.com/read/27465303/pulmonary-embolism-with-floating-right-atrial-thrombus-successfully-treated-with-streptokinase-a-case-report
#18
Sahela Nasrin, Fathima Aaysha Cader, Md Salahuddin, Tahera Nazrin, Masuma Jannat Shafi
BACKGROUND: Massive pulmonary embolism (PE) is associated with significant mortality, especially if compounded by haemodynamic instability, right ventricular (RV) dysfunction and right atrial (RA) thrombus. Thrombolysis can be lifesaving in patients with major embolism and cardiogenic shock, and accelerates the resolution of thrombus. Only three fibrinolytic agents-namely streptokinase, urokinase, and recombinant tissue plasminogen activator (alteplase) have been approved in the treatment of PE, with studies demonstrating similar safety profiles...
2016: BMC Research Notes
https://www.readbyqxmd.com/read/27461587/medicare-utilization-of-ct-angiography-from-2001-through-2014-continued-growth-by-radiologists
#19
Anand M Prabhakar, Alexander S Misono, Jennifer Hemingway, Danny R Hughes, Richard Duszak
PURPOSE: To examine changes in utilization of computed tomography (CT) angiography nationally and changing relative specialty roles in examination interpretation. MATERIALS AND METHODS: Service-specific claims data for region-specific CT angiography examinations were identified using Medicare Physician Supplier Procedure Summary Master Files from 2001 through 2014. Longitudinal national utilization rates were calculated using annual Medicare enrollment data for 2001-2013...
October 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27455474/biplane-interventional-pediatric-system-with-cone-beam-ct-dose-and-image-quality-characterization-for-the-default-protocols
#20
Eva Corredoira, Eliseo Vañó, Luis Alejo, Carlos Ubeda, Federico Gutiérrez-Larraya, Julia Garayoa
The aim of this study was to assess image quality and radiation dose of a biplane angiographic system with cone-beam CT (CBCT) capability tuned for pediatric cardiac procedures. The results of this study can be used to explore dose reduction techniques. For pulsed fluoroscopy and cine modes, polymethyl methacrylate phantoms of various thicknesses and a Leeds TOR 18-FG test object were employed. Various fields of view (FOV) were selected. For CBCT, the study employed head and body dose phantoms, Catphan 504, and an anthropomorphic cardiology phantom...
2016: Journal of Applied Clinical Medical Physics
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