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https://www.readbyqxmd.com/read/28540209/myocardial-blood-flow-quantification-for-evaluation-of-coronary-artery-disease-by-computed-tomography
#1
REVIEW
Filippo Cademartiri, Sara Seitun, Alberto Clemente, Ludovico La Grutta, Patrizia Toia, Giuseppe Runza, Massimo Midiri, Erica Maffei
During the last decade coronary computed tomography angiography (CTA) has become the preeminent non-invasive imaging modality to detect coronary artery disease (CAD) with high accuracy. However, CTA has a limited value in assessing the hemodynamic significance of a given stenosis due to a modest specificity and positive predictive value. In recent years, different CT techniques for detecting myocardial ischemia have emerged, such as CT-derived fractional flow reserve (FFR-CT), transluminal attenuation gradient (TAG), and myocardial CT perfusion (CTP) imaging...
April 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28500447/-certification-guidelines-and-qualification-courses
#2
REVIEW
R Loose, M Wucherer
German regulations require a license for using ionizing radiation in medicine. This license-called "Fachkunde"-varies for different medical procedures such as CT, fluoroscopy, radiography, or mammography. The required frequencies and training times also vary for different medical disciplines such as radiology, cardiology, vascular surgery, traumatology, nuclear medicine, and radiotherapy, among others. The quality criteria for a specific license require a minimum training time under supervision and a minimum frequency of a wide range of procedures...
May 12, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28460762/acute-pulmonary-thromboembolism-epidemiology-predictors-and-long-term-outcome-a-single-center-experience
#3
U M Nagamalesh, V S Prakash, K C Karthik Naidu, S Sarthak, Anupama V Hegde, T Abhinay
INTRODUCTION: Acute pulmonary thromboembolism (PTE) is a life-threatening disease. Mortality in PTE still remains very high in spite of progress in diagnostic tools. Mortality rate is about 30% in patients with unrecognized acute PTE. METHODS: It is a single center observational study of 31 consecutive patients who were hospitalized in the Department of Cardiology at MS Ramaiah Memorial hospital between January 1, 2010 and June 2015. All the patients confirmed with diagnosis of acute PTE by CT scan (either HRCT or CTPA) were included in the study...
March 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28451691/tool-supported-interactive-correction-and-semantic-annotation-of-narrative-clinical-reports
#4
Karel Zvára, Marie Tomečková, Jan Peleška, Vojtěch Svátek, Jana Zvárová
OBJECTIVES: Our main objective is to design a method of, and supporting software for, interactive correction and semantic annotation of narrative clinical reports, which would allow for their easier and less erroneous processing outside their original context: first, by physicians unfamiliar with the original language (and possibly also the source specialty), and second, by tools requiring structured information, such as decision-support systems. Our additional goal is to gain insights into the process of narrative report creation, including the errors and ambiguities arising therein, and also into the process of report annotation by clinical terms...
April 28, 2017: Methods of Information in Medicine
https://www.readbyqxmd.com/read/28427801/-multimodality-imaging-in-the-cardiac-catheterization-laboratory
#5
Karine Warin-Fresse, Sébastien Hascoet, Patrice Guérin
Cardiac catheterization has greatly contributed to the progress made in the management of congenital heart diseases (CHD). Initially used in diagnosis, it allowed the understanding of heart diseases, their anatomy and hemodynamics. Gradually, the development of interventional cardiology has played a major role in the management of these malformations (Patent ductus arteriosus [PDA] and atrial septal defect [ASD] closure, pulmonary dilatation, percutaneous pulmonary valve implantation…). The development of such technology was made possible through the concomitant development of imaging techniques: fluoroscopy, ultrasound, MRI and CT...
April 17, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28364270/safe-trial-an-ongoing-randomized-clinical-study-to-assess-the-role-of-cardiotoxicity-prevention-in-breast-cancer-patients-treated-with-anthracyclines-with-or-without-trastuzumab
#6
REVIEW
Icro Meattini, Giuseppe Curigliano, Francesca Terziani, Carlotta Becherini, Mario Airoldi, Giacomo Allegrini, Domenico Amoroso, Sandro Barni, Carmelo Bengala, Valentina Guarneri, Paolo Marchetti, Francesca Martella, Pierluigi Piovano, Agnese Vannini, Isacco Desideri, Roberto Tarquini, Giorgio Galanti, Giuseppe Barletta, Lorenzo Livi
Over the years, thanks to the addition of new generation systemic agents, as well as the use of more advanced and precise radiotherapy techniques, it was able to obtain a high curability rate for breast cancer. Anthracyclines play a key role in the treatment of breast disease, with a well-known benefit on disease-free survival of patients with positive nodal status. Trastuzumab have shown a significant outcome advantage after 1-year administration in case of HER2-positive disease. Unfortunately, significant increase in cardiotoxicity has been observed after anthracyclines and trastuzumab therapies...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28330658/nonobstructive-coronary-artery-disease-by-coronary-ct-angiography-improves%C3%A2-risk-stratification-and-allocation%C3%A2-of-statin%C3%A2-therapy
#7
Hamed Emami, Richard A P Takx, Thomas Mayrhofer, Sumbal Janjua, Jakob Park, Amit Pursnani, Ahmed Tawakol, Michael T Lu, Maros Ferencik, Udo Hoffmann
OBJECTIVES: This study sought to determine prognostic value of nonobstructive coronary artery disease (CAD) for atherosclerotic cardiovascular disease (ASCVD) events and to determine whether incorporation of this information into the pooled cohort equation reclassifies recommendations for statin therapy as defined by the 2013 guidelines for cholesterol management of the American College of Cardiology and American Heart Association (ACC/AHA). BACKGROUND: Detection of nonobstructive CAD by coronary computed tomography angiography may improve risk stratification and permit individualized and more appropriate allocation of statin therapy...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28321775/presence-and-extent-of-cardiac-computed-tomography-angiography-defined-coronary-artery-disease-in-patients-presenting-with-syncope
#8
S Altintas, T Dinh, N G H M Marcks, M Kok, A J J Aerts, B Weijs, Y Blaauw, J E Wildberger, M Das, B L J H Kietselaer, H J G M Crijns
BACKGROUND: In syncope patients, presence of coronary artery disease (CAD) is associated with poor prognosis. However, data concerning CAD prevalence in syncope patients without known cardiovascular disease are lacking. Therefore, the aim of this study was to investigate presence and extent of CAD in syncope patients. METHODS: We included 142 consecutive patients presenting with syncope at the outpatient cardiology clinic who underwent coronary computed tomography (CT) angiography...
March 20, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28296296/biplane-interventional-pediatric-system-with-cone-beam-ct-dose-and-image-quality-characterization-for-the-default-protocols
#9
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...
July 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28284205/usage-of-3d-models-of-tetralogy-of-fallot-for-medical-education-impact-on-learning-congenital-heart-disease
#10
RANDOMIZED CONTROLLED TRIAL
Yue-Hin Loke, Ashraf S Harahsheh, Axel Krieger, Laura J Olivieri
BACKGROUND: Congenital heart disease (CHD) is the most common human birth defect, and clinicians need to understand the anatomy to effectively care for patients with CHD. However, standard two-dimensional (2D) display methods do not adequately carry the critical spatial information to reflect CHD anatomy. Three-dimensional (3D) models may be useful in improving the understanding of CHD, without requiring a mastery of cardiac imaging. The study aimed to evaluate the impact of 3D models on how pediatric residents understand and learn about tetralogy of Fallot following a teaching session...
March 11, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28265641/-nuclear-medicine-in-germany-updated-key-data-and-trends-from-official-statistics
#11
Dirk Hellwig, Jörg Marienhagen, Karin Menhart, Jirka Grosse
AIM: Updated presentation of the spectrum of nuclear medicine in-vivo examinations and therapies from officially available statistics on out-patient and in-patient care as well as trends of structural data on nuclear medicine in Germany. METHODS: Data from the German Federal Health Monitoring, from the frequency statistics of the statutory health insurance for out-patients and from the German Medical Association were used and supplemented by data from selective literature searches...
March 7, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28242586/feasibility-and-safety-of-direct-catheter-based-thrombectomy-in-the-treatment-of-acute-ischemic-stroke-cooperation-of-cardiologists-neurologists-and-radiologists-prospective-registry-prague-16
#12
Petr Widimsky, Boris Koznar, Tomas Peisker, Peter Vasko, Filip Rohac, Jana Vavrova, Josef Kroupa, Ivana Stetkarova
AIMS: The aim of this study was to evaluate the role of direct catheter-based thrombectomy (d-CBT, without thrombolysis) and the feasibility and safety of d-CBT performed in an interventional cardiology center. METHODS AND PATIENTS: Single center, prospective observational registry based on the prespecified protocol included 3 months follow-up. The decision to perform acute stroke intervention was done by a neurologist based on the clinical and imaging findings...
February 28, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28237004/nuclear-medicine-in-pediatric-cardiology
#13
REVIEW
Ornella Milanesi, Giovanni Stellin, Pietro Zucchetta
Accurate cardiovascular imaging is essential for the successful management of patients with congenital heart disease (CHD). Echocardiography and angiography have been for long time the most important imaging modalities in pediatric cardiology, but nuclear medicine has contributed in many situations to the comprehension of physiological consequences of CHD, quantifying pulmonary blood flow symmetry or right-to-left shunting. In recent times, remarkable improvements in imaging equipments, particularly in multidetector computed tomography and magnetic resonance imaging, have led to the progressive integration of high resolution modalities in the clinical workup of children affected by CHD, reducing the role of diagnostic angiography...
March 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#14
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28186939/cardiac-diagnostic-work-up-for-atrial-fibrillation-after-transient-ischaemic-attacks-in-england-and-wales-results-from-a-cross-sectional-survey
#15
Olivia Geraghty, Eleni Korompoki, Filippos T Filippidis, Anthony Rudd, Roland Veltkamp
OBJECTIVES: Transient ischaemic attacks (TIAs) are an important precursor of stroke. Atrial fibrillation (AF) is among the most dangerous aetiologies shared between TIAs and strokes. Detection of AF after TIAs is essential for the initiation of oral anticoagulants. We aimed to identify variations in the use of cardiac investigations used to detect AF and cardiac pathology in patients with TIA in the UK. SETTING: All TIA clinical leads in England and Wales received an invitation by email to participate in an online survey in February 2015...
November 10, 2016: BMJ Open
https://www.readbyqxmd.com/read/28160262/comparison-between-the-summed-difference-score-and-myocardial-blood-flow-measured-by-13-n-ammonia
#16
Raffaele Giubbini, Alessia Peli, Elisa Milan, Roberto Sciagrà, Luca Camoni, Domenico Albano, Mattia Bertoli, Mattia Bonacina, Federica Motta, Massimo Statuto, Carlo Alberto Rodella, Antonio De Agostini, Raffaella Calabretta, Francesco Bertagna
BACKGROUND: Both the myocardial perfusion pattern and myocardial blood flow (MBF) are used to assess patients with suspected coronary artery disease (CAD). The aim of this study was to compare the perfusion pattern (using the summed difference score [SDS]) to MBF in a consecutive group of patients undergoing PET/CT with 13 N-ammonia ((13)NH3). METHODS: 47 consecutive patients, aged 65 ± 12 years (42 men) with known or suspected CAD, underwent vasodilator stress/rest PET/CT with (13)NH3 for clinical indications...
February 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28148317/echocardiography-of-coarctation-of-the-aorta-aortic-arch-hypoplasia-and-arch-interruption-strategies-for-evaluation-of-the-aortic-arch
#17
REVIEW
Suma P Goudar, Sanket S Shah, Girish S Shirali
Aim Echocardiography is the modality of choice for the diagnosis and serial follow-up of aortic arch pathology. In this article, we review the types of obstruction of the aortic arch, various classification schemes of coarctation of the aorta and interrupted aortic arch, methodology for optimal echocardiographic imaging of the aortic arch, and key echocardiographic measurements for accurate diagnosis of obstruction and hypoplasia of the aortic arch. Finally, we will discuss the limitations of echocardiography in optimal imaging of the aortic arch and the use of other non-invasive imaging modalities such as CT or MRI to provide additional information in these cases...
December 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/28130653/addressing-knowledge-gaps-in-the-2013-acc-aha-guideline-on-the-assessment-of-cardiovascular-risk-a-review-of-recent-coronary-artery-calcium-literature
#18
REVIEW
Vasanth Sathiyakumar, Roger S Blumenthal, Khurram Nasir, Seth S Martin
PURPOSE OF REVIEW: Coronary artery calcium (CAC) has been proposed as an integrator of information from traditionally measured, non-traditionally measured, and unmeasured risk factors for coronary atherosclerosis. The 2013 American College of Cardiology/American Heart Association Guideline on the Assessment of Cardiovascular Risk identified several knowledge gaps regarding CAC, including radiation risks, cost-effectiveness, and improving discrimination and reclassification of estimated risk over the Pooled Cohort Equations in the ACC/AHA Atherosclerotic Cardiovascular Disease Estimator...
February 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/27982544/cardiovascular-preclinical-imaging
#19
REVIEW
Stephan G Nekolla, Christoph Rischpler, Anna Paschali, Constantinos Anagnostopoulos
Non-invasive imaging in the form of single-photon emission-computed tomography (SPECT), positron-emission tomography (PET), computed tomography (CT), echocardiography or magnetic resonance imaging (MRI) is a very useful tool for cardiovascular research as it allows assessment of biological processes in vivo. Nuclear imaging with SPECT and PET offers the advantage of high sensitivity, the potential for serial imaging, and reliable quantification. Currently a wide range of established as well as innovative agents is available and can be imaged with dedicated preclinical and clinical SPECT and PET imaging systems...
March 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27957647/dosimetry-in-micro-computed-tomography-a-review-of-the-measurement-methods-impacts-and-characterization-of-the-quantum-gx-imaging-system
#20
Jeffrey A Meganck, Bob Liu
PURPOSE: X-ray micro-computed tomography (μCT) is a widely used imaging modality in preclinical research with applications in many areas including orthopedics, pulmonology, oncology, cardiology, and infectious disease. X-rays are a form of ionizing radiation and, therefore, can potentially induce damage and cause detrimental effects. Previous reviews have touched on these effects but have not comprehensively covered the possible implications on study results. Furthermore, interpreting data across these studies is difficult because there is no widely accepted dose characterization methodology for preclinical μCT...
December 12, 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
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