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https://www.readbyqxmd.com/read/28448829/consequences-of-the-cmr-effect-on-eels-in-tem
#1
Wolfgang Wallisch, Michael Stöger-Pollach, Edvinas Navickas
Double perovskite oxides have gained in importance and exhibit negative magnetoresistance, which is known as colossal magnetoresistance (CMR) effect. Using a La2CoMnO6 (LCM) thin film layer, we proved that the physical consequences of the CMR effect do also influence the electron energy loss spectrometry (EELS) signal. We observed a change of the band gap at low energy losses and were able to study the magnetisation with chemical sensitivity by employing energy loss magnetic chiral dichroism (EMCD) below the Curie temperature TC, where the CMR effect becomes significant...
April 15, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28448777/effect-of-an-advanced-pharmacy-practice-experience-on-medication-therapy-management-services-in-a-centralized-retail-pharmacy-program
#2
Joseph P Vande Griend, Melissa Rodgers, Wesley Nuffer
BACKGROUND: Medication therapy management (MTM) delivery is increasingly important in managed care. Successful delivery positively affects patient health and improves Centers for Medicare & Medicaid Services star ratings, a measure of health plan quality. As MTM services continue to grow, there is an increased need for efficient and effective care models. The primary objectives of this project were to describe the delivery of MTM services by fourth-year Advanced Pharmacy Practice Experience (APPE) students in a centralized retail pharmacy system and to evaluate and quantify the clinical and financial contributions of the students...
May 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28440670/cardiac-magnetic-resonance-based-evaluation-of-aortic-stiffness-and-epicardial-fat-volume-in-patients-with-hypertension-diabetes-mellitus-and-myocardial-infarction
#3
Rami Homsi, Alois M Sprinkart, Juergen Gieseke, Michael Meier-Schroers, Seyrani Yuecel, Stefan Fischer, Jennifer Nadal, Darius Dabir, Julian A Luetkens, Daniel L Kuetting, Hans H Schild, Daniel K Thomas
Background Aortic stiffness and epicardial fat relate to cardiovascular risk. Their relationship with each other and their role with hypertension, diabetes mellitus (DM), and myocardial infarction (MI) can be evaluated by cardiac magnetic resonance (CMR). Purpose To explore an association between aortic stiffness and epicardial as well as paracardial fat volume (EFV and ParaFV, respectively) in hypertensive patients and to relate the results to the presence of DM and MI. Material and Methods A total of 156 hypertensive and 20 non-hypertensive participants were examined at 1...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28439734/myocardial-salvage-after-primary-percutaneous-coronary-intervention-in-patients-with-st-elevation-myocardial-infarction-presenting-early-versus-late-after-symptom-onset
#4
Thomas Stiermaier, Ingo Eitel, Suzanne de Waha, Janine Pöss, Georg Fuernau, Holger Thiele, Steffen Desch
Primary percutaneous coronary intervention (PCI) is the treatment of choice in patients with ST-elevation myocardial infarction (STEMI) presenting within 12 h of symptom onset. A benefit in the subacute stage is less clear. The aim of the present analysis was to compare myocardial salvage and infarct size between patients with early and late reperfusion after STEMI. We compared cardiac magnetic resonance (CMR) data from a randomized controlled trial (RCT) in STEMI patients presenting within 12 h (n = 695) and a RCT of subacute STEMI patients presenting between 12 and 48 h (n = 93) after symptom onset...
April 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28439652/myocardial-extracellular-volume-fraction-quantified-by-cardiovascular-magnetic-resonance-is-increased-in-hypertension-and-associated-with-left-ventricular-remodeling
#5
Shuli Wang, Hongjie Hu, Minjie Lu, Arlene Sirajuddin, Jinghui Li, Jing An, Xiuyu Chen, Gang Yin, Tian Lan, Linlin Dai, Yan Zhang, Xiaorong Yin, Lei Song, Aimin Dang, Peter Kellman, Andrew E Arai, Shihua Zhao
OBJECTIVES: To determine whether extracellular volume fraction (ECV) quantification by cardiac magnetic resonance (CMR) can demonstrate left ventricle (LV) abnormalities and relationship between ECV and LV remodeling in hypertension (HTN) patients METHODS: ECV quantification was prospectively performed in 134 consecutive HTN patients and 97 healthy subjects. Individual and regional ECV were compared to the regions on late gadolinium enhancement (LGE) images. Statistical analysis of the relationship between LV global functional parameters and ECV was carried out using Pearson's correlation, Student's t test and multiple regressions...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28439651/contrast-enhanced-t1-mapping-based-extracellular-volume-fraction-independently-predicts-clinical-outcome-in-patients-with-non-ischemic-dilated-cardiomyopathy-a-prospective-cohort-study
#6
Jong-Chan Youn, Yoo Jin Hong, Hye-Jeong Lee, Kyunghwa Han, Chi Young Shim, Geu-Ru Hong, Young Joo Suh, Jin Hur, Young Jin Kim, Byoung Wook Choi, Seok-Min Kang
OBJECTIVES: We aimed to evaluate the prognostic role of cardiac magnetic resonance imaging (CMR)-based extracellular volume fraction (ECV) in patients with non-ischemic dilated cardiomyopathy (NIDCM) and compare it with late gadolinium enhancement (LGE) parameters. METHODS: This was a single-center, prospective, cohort study of 117 NIDCM patients (71 men, 51.9 ± 16.7 years) who underwent clinical 3.0-T CMR. Myocardial ECV and LGE were quantified on the left ventricular myocardium...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28438306/relation-of-quantity-of-subepicardial-adipose-tissue-to-infarct-size-in-patients-with-st-elevation-myocardial-infarction
#7
Loïc Bière, Vianney Behaghel, Victor Mateus, Antonildes Assunção, Christoph Gräni, Kais Ouerghi, Sylvain Grall, Serge Willoteaux, Fabrice Prunier, Raymond Kwong, Alain Furber
According to the so-called obesity paradox, obesity might present a protective role in patients with myocardial infarction. We aimed to assess the influence of the epicardial adipose tissue (EAT) volume on cardiac healing and remodeling in patients with acute ST-elevation myocardial infarction. We prospectively included 193 consecutive patients presenting a first STEMI without known coronary artery disease. Cardiac magnetic resonance imaging was performed at baseline and after a 3-month follow-up. EAT volume was computed, and the population was divided into quartiles: the highest quartile of EAT defining the high EAT group (h-EAT)...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28432954/fully-automatic-left-ventricular-segmentation-from-long-axis-cardiac-cine-mr-scans
#8
Rahil Shahzad, Qian Tao, Oleh Dzyubachyk, Marius Staring, Boudewijn P F Lelieveldt, Rob J van der Geest
With an increasing number of large-scale population-based cardiac magnetic resonance (CMR) imaging studies being conducted nowadays, there comes the mammoth task of image annotation and image analysis. Such population-based studies would greatly benefit from automated pipelines, with an efficient CMR image analysis workflow. The purpose of this work is to investigate the feasibility of using a fully-automatic pipeline to segment the left ventricular endocardium and epicardium simultaneously on two orthogonal (vertical and horizontal) long-axis cardiac cine MRI scans...
April 13, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28432605/cardiac-magnetic-resonance-imaging-in-heart-failure-where-the-alphabet-begins
#9
REVIEW
Ahmed Aljizeeri, Abdulbaset Sulaiman, Naji Alhulaimi, Ahmed Alsaileek, Mouaz H Al-Mallah
Cardiac Magnetic Resonance Imaging has become a cornerstone in the evaluation of heart failure. It provides a comprehensive evaluation by answering all the pertinent clinical questions across the full pathological spectrum of heart failure. Nowadays, CMR is considered the gold standard in evaluation of ventricular volumes, wall motion and systolic function. Through its unique ability of tissue characterization, it provides incremental diagnostic and prognostic information and thus has emerged as a comprehensive imaging modality in heart failure...
April 22, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28432004/impact-of-right-ventricular-side-branch-occlusion-during-percutaneous-coronary-intervention-of-chronic-total-occlusions-on-right-ventricular-function
#10
Pepijn A van Diemen, Wynand J Stuijfzand, Stefan P Biesbroek, Pieter G Raijmakers, Roel S Driessen, Stefan P Schumacher, Alexander Nap, Albert C van Rossum, Niels van Royen, Robin Nijveldt, Paul Knaapen
OBJECTIVE: To determine the impact of right ventricular side branch (RVB) occlusion, during percutaneous coronary interventions (PCIs) of chronic total occlusions (CTOs) of the right coronary artery (RCA), on right ventricular (RV) function. BACKGROUND: Developments in PCI techniques have expanded PCI CTO feasibility. However, the utilization of dissection and reentry techniques and extensive stent implantation increases the risk of coronary side branch occlusion...
April 11, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28431009/artefact-free-late-gadolinium-enhancement-imaging-in-patients-with-implanted-cardiac-devices-using-a-modified-broadband-sequence-current-strategies-and-results-from-a-real-world-patient-cohort
#11
Sebastian Hilbert, Alexander Weber, Kay Nehrke, Peter Börnert, Bernhard Schnackenburg, Sabrina Oebel, Ricardo Spampinato, Cathleen Rogge, Sergio Richter, Gerhard Hindricks, Ingo Paetsch, Cosima Jahnke
Aims: Cardiac magnetic resonance (CMR) imaging in patients with implanted cardiac devices is often limited by device-related imaging artefacts. Limitations can potentially be overcome by employing a broadband late gadolinium enhancement (LGE)-CMR imaging technique. The purpose of this study was to investigate the relationship between implanted cardiac devices and the optimal frequency offset on broadband LGE-CMR imaging to increase the artefact-free visibility of myocardial segments. Methods and results: A phantom study was performed to characterize magnetic field disturbances related to 15 different cardiac devices...
April 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28430739/downstream-indication-to-revascularization-following-hybrid-cardiac-pet-mri-preliminary-results
#12
Julien Priamo, Dionysos Adamopoulos, Oliver Rager, Angela Frei, Stephane Noble, David Carballo, Osman Ratib, René Nkoulou
BACKGROUND: Hybrid PET/MRI allows the acquisition of both fluorine-18-fluorodeoxyglucose (F-FDG) PET and cardiac magnetic resonance (CMR) during one session. Whether this will result in different referral to coronary revascularization (CR) is unknown. We compared this new hybrid method with all-nuclear/all-CMR methods in the assessment of viable myocardium and in downstream referral to CR. PATIENTS AND METHODS: Overall, 12 patients with rest perfusion defects on a single photon emission computed tomography (SPECT) were recruited for cardiac viability assessment using a PET/MRI device...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28429529/impaired-left-atrial-function-predicts-inappropriate-shocks-in-primary-prevention-implantable-cardioverter-defibrillator-candidates
#13
Susumu Tao, Hiroshi Ashikaga, Luisa A Ciuffo, Kihei Yoneyama, Joao A C Lima, Terry F Frank, Robert G Weiss, Gordon F Tomaselli, Katherine C Wu
INTRODUCTION: Inappropriate implantable cardioverter-defibrillator (ICD) shocks, commonly caused by atrial fibrillation (AF), are associated with an increased mortality. Because impaired left atrial (LA) function predicts development of AF, we hypothesized that impaired LA function predicts inappropriate shocks beyond a history of AF. METHODS AND RESULTS: We prospectively analyzed the association between LA function and incident inappropriate shocks in primary prevention ICD candidates...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28428482/triglyceride-rich-lipoprotein-lpl-vldl-receptor-and-lp-a-vldl-receptor-pathways-for-macrophage-foam-cell-formation
#14
Sadao Takahashi
Very low-density lipoprotein (VLDL) receptor is a member of the low-density lipoprotein (LDL) receptor family. It binds triglyceride rich lipoprotein (TGRL) but not LDL, because it recognizes apolipoprotein (apo)E only but not apoB. The VLDL receptor functions as a peripheral lipoprotein receptor in concert with lipoprotein lipase (LPL) in heart, muscle, adipose tissue and macrophages. In contrast to the LDL receptor, VLDL receptor binds apo E2/2 VLDL and apoE3/3 VLDL particles, and its expression is not down-regulated by intracellular lipoproteins...
April 19, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28424090/targeted-endomyocardial-biopsy-guided-by-real-time-cardiovascular-magnetic-resonance
#15
Christina Unterberg-Buchwald, Christian Oliver Ritter, Verena Reupke, Robin Niklas Wilke, Christine Stadelmann, Michael Steinmetz, Andreas Schuster, Gerd Hasenfuß, Joachim Lotz, Martin Uecker
BACKGROUND: Endomyocardial biopsies (EMB) are an important diagnostic tool for myocarditis and other infiltrative cardiac diseases. Routinely, biopsies are obtained under fluoroscopic guidance with a substantial radiation burden. Despite procedural success, there is a large sampling error caused by missing the affected myocardium. Therefore, multiple (>6) biopsies are taken in the clinical setting. In cardiovascular magnetic resonance (CMR), late gadolinium enhancement (LGE) depicts areas of affected myocardium in myocarditis or in other infiltrative cardiomyopathies...
April 19, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28421174/utility-of-cardiovascular-magnetic-resonance-derived-wave-intensity-analysis-as-a-marker-of-ventricular-function-in-children-with-heart-failure-and-normal-ejection-fraction
#16
Hopewell N Ntsinjana, Robin Chung, Paolo Ciliberti, Vivek Muthurangu, Silvia Schievano, Jan Marek, Kim H Parker, Andrew M Taylor, Giovanni Biglino
OBJECTIVE: This study sought to explore the diagnostic insight of cardiovascular magnetic resonance (CMR)-derived wave intensity analysis to better study systolic dysfunction in young patients with chronic diastolic dysfunction and preserved ejection fraction (EF), comparing it against other echocardiographic and CMR parameters. BACKGROUND: Evaluating systolic and diastolic dysfunctions in children is challenging, and a gold standard method is currently lacking...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28416981/relationship-between-right-and-left-ventricular-function-in-candidates-for-implantable-cardioverter-defibrillator-with-low-left-ventricular-ejection-fraction
#17
Laura Jimenez-Juan, Gauri R Karur, Kim A Connelly, Djeven Deva, Raymond T Yan, Rachel M Wald, Sheldon Singh, General Leung, Anastasia Oikonomou, Paul Dorian, Paul Angaran, Andrew T Yan
BACKGROUND: Indications for the primary prevention of sudden death using an implantable cardioverter defibrillator (ICD) are based predominantly on left ventricular ejection fraction (LVEF). However, right ventricular ejection fraction (RVEF) is also a known prognostic factor in a variety of structural heart diseases that predispose to sudden cardiac death. We sought to investigate the relationship between right and left ventricular parameters (function and volume) measured by cardiovascular magnetic resonance (CMR) among a broad spectrum of patients considered for an ICD...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28412435/cmr-derived-extracellular-volume-fraction-as-a-marker%C3%A2-for-myocardial-fibrosis-the-importance-of-coexisting-myocardial-inflammation
#18
Julia Anna Lurz, Christian Luecke, David Lang, Christian Besler, Karl-Philipp Rommel, Karin Klingel, Reinhard Kandolf, Volker Adams, Katharina Schöne, Gerhard Hindricks, Gerhard Schuler, Axel Linke, Holger Thiele, Matthias Gutberlet, Philipp Lurz
OBJECTIVES: The aim of the present study was to evaluate whether extracellular volume fraction (ECV) can reliably inform on the extent of diffuse fibrosis in the simultaneous presence of myocardial inflammation, which has not been verified to date. BACKGROUND: Diffuse myocardial fibrosis is associated with unfavorable outcome in patients with cardiomyopathy, and is of prognostic relevance. Assessment of ECV bears promise for being a noninvasive surrogate parameter, but it may be altered by other pathologies...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412429/myocardial-inflammation-an-important-pitfall-during-cmr-t1-mapping-for-the-quantification-of-diffuse-fibrosis-in-heart%C3%A2-failure
#19
EDITORIAL
Julia Mascherbauer
No abstract text is available yet for this article.
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412420/stress-perfusion-cmr-in-patients-with-known-and-suspected-cad-prognostic-value-and-optimal-ischemic-threshold-for-revascularization
#20
Gabriella Vincenti, Pier Giorgio Masci, Pierre Monney, Tobias Rutz, Sarah Hugelshofer, Mirdita Gaxherri, Olivier Muller, Juan F Iglesias, Eric Eeckhout, Valentina Lorenzoni, Cyril Pellaton, Christophe Sierro, Juerg Schwitter
OBJECTIVES: This study sought to determine the ischemia threshold and additional prognostic factors that identify patients for safe deferral from revascularizations in a large cohort of all-comer patients with known or suspected coronary artery disease (CAD). BACKGROUND: Stress-perfusion cardiac magnetic resonance (CMR) is increasingly used in daily practice for ischemia detection. However, there is insufficient evidence about the ischemia burden that identifies patients who benefit from revascularization versus those with a good prognosis who receive drugs only...
April 10, 2017: JACC. Cardiovascular Imaging
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