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Cardiovascular resonance

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https://www.readbyqxmd.com/read/29149455/positive-effect-on-patient-experience-of-video-information-given-prior-to-cardiovascular-magnetic-resonance-imaging-a-clinical-trial
#1
Britt-Marie Ahlander, Jan Engvall, Eva Maret, Elisabeth Ericsson
AIMS: To evaluate the effect of video information given before cardiovascular magnetic resonance imaging on patient anxiety and to compare patient experiences of cardiovascular magnetic resonance imaging versus myocardial perfusion scintigraphy. To evaluate if additional information has an impact on motion artefacts. BACKGROUND: Cardiovascular magnetic resonance imaging and myocardial perfusion scintigraphy are technically advanced methods for the evaluation of heart diseases...
November 17, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29147768/non-invasive-methods-for-estimating-mpap-in-copd-using-cardiovascular-magnetic-resonance-imaging
#2
C S Johns, S Rajaram, D A Capener, C Oram, C Elliot, R Condliffe, D G Kiely, J M Wild, A J Swift
PURPOSE: Pulmonary hypertension (PH) is associated with a poor outcome in chronic obstructive pulmonary disease (COPD) and is diagnosed invasively. We aimed to assess the diagnostic accuracy and prognostic value of non-invasive cardiovascular magnetic resonance (CMR) models. METHODS: Patients with COPD and suspected PH, who underwent CMR and right heart catheter (RHC) were identified. Three candidate models were assessed: 1, CMR-RV model, based on right ventricular (RV) mass and interventricular septal angle; 2, CMR PA/RV includes RV mass, septal angle and pulmonary artery (PA) measurements; 3, the Alpha index, based on RV ejection fraction and PA size...
November 16, 2017: European Radiology
https://www.readbyqxmd.com/read/29146588/cardiovascular-magnetic-resonance-for-risk-stratification-in-patients-with-st-segment-elevation-myocardial-infarction-a-novel-tool-to-tailor-therapy-or-emperor-s-new-clothes
#3
EDITORIAL
Jacob Lønborg, Thomas Engstrøm
No abstract text is available yet for this article.
November 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29146416/fulminant-adrenergic-myocarditis-complicated-by-pulmonary-edema-cardiogenic-shock-and-cardiac-arrest
#4
Pawel Rostoff, Bohdan Nessler, Patrycja Pikul, Karolina Golinska-Grzybala, Tomasz Miszalski-Jamka, Jadwiga Nessler
Adrenergic myocarditis is an uncommon presentation of pheochromocytoma and extremely rare cause of de novo acute heart failure (AHF). We present a case of a 31-year-old Caucasian woman with a history of hypertension and recurrent occipital headaches who was admitted to the emergency department due to severe de novo AHF presenting as pulmonary edema and cardiogenic shock. During the hospital admission the patient experienced asystolic cardiac arrest and was successfully resuscitated, intubated, and mechanically ventilated...
November 10, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29146107/cardiovascular-anatomy-in-children-with-bidirectional-glenn-anastomosis-regarding-the-transcatheter-fontan-completion
#5
Aleksander Sizarov, Francesca Raimondi, Damien Bonnet, Younes Boudjemline
BACKGROUND: Transcatheter stent-secured completion of total cavopulmonary connection (TCPC) after surgical preparations during the Glenn anastomosis procedure has been reported, but complications from this approach have precluded its clinical acceptance. AIMS: To analyse cardiovascular morphology and dimensions in children with bidirectional Glenn anastomosis, regarding the optimal device design for transcatheter Fontan completion without special surgical "preconditionings"...
November 13, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29145428/abnormal-brain-white-matter-microstructure-is-associated-with-both-pre-hypertension-and-hypertension
#6
Hideaki Suzuki, He Gao, Wenjia Bai, Evangelos Evangelou, Ben Glocker, Declan P O'Regan, Paul Elliott, Paul M Matthews
OBJECTIVES: To characterize effects of chronically elevated blood pressure on the brain, we tested for brain white matter microstructural differences associated with normotension, pre-hypertension and hypertension in recently available brain magnetic resonance imaging data from 4659 participants without known neurological or psychiatric disease (62.3±7.4 yrs, 47.0% male) in UK Biobank. METHODS: For assessment of white matter microstructure, we used measures derived from neurite orientation dispersion and density imaging (NODDI) including the intracellular volume fraction (an estimate of neurite density) and isotropic volume fraction (an index of the relative extra-cellular water diffusion)...
2017: PloS One
https://www.readbyqxmd.com/read/29138746/a-novel-encephalopathy-in-a-thiamine-deficient-dog-resembling-human-wernicke-s-disease-with-atypical-mri-pattern
#7
Floriana Gernone, Mario Ricciardi
Thiamine is a water-soluble vitamin, which participates in several vital metabolic pathways involved in energy metabolism and neurotransmitter synthesis of mammals. In companion animals thiamine deficiency is classically associated with signs of diffuse encephalopathy and lesions on brainstem nuclei and mesencephalic colliculi evident on magnetic resonance imaging. This paper describes a novel clinical presentation in a thiamine-deficient dog showing multifocal, central and peripheral nervous and cardiovascular system alterations...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/29136819/alteration-in-the-liver-metabolome-of-rats-with-metabolic-syndrome-after-treatment-with-hydroxytyrosol-a-mass-spectrometry-and-nuclear-magnetic-resonance-based-metabolomics-study
#8
Ioanna Dagla, Dimitra Benaki, Eirini Baira, Nikolaos Lemonakis, Hemant Poudyal, Lindsay Brown, Anthony Tsarbopoulos, Alexios-Leandros Skaltsounis, Emmanouel Mikros, Evagelos Gikas
Metabolic syndrome (MetS) represents a group of abnormalities that enhances the risk for cardiovascular disease, diabetes and stroke. The Mediterranean diet seems to be an important dietary pattern, which reduces the incidence of MetS. Hydroxytyrosol (HT) - a simple phenol found in olive oil - has received increased attention for its antioxidant activity. Recently, the European Foods Safety Authority (EFSA) claimed that dietary consumption of HT exhibits a protective role against cardiovascular disease. In this study, an experimental protocol has been setup, including isolated HT administration in a diet induced model of MetS in young Wistar rats, in order to find out whether HT has a protective effect against MetS...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136120/t2-mapping-cardiovascular-magnetic-resonance-identifies-the-presence-of-myocardial-inflammation-in-patients-with-dilated-cardiomyopathy-as-compared-to-endomyocardial-biopsy
#9
M Spieker, E Katsianos, M Gastl, P Behm, P Horn, C Jacoby, B Schnackenburg, P Reinecke, M Kelm, R Westenfeld, F Bönner
Aims: The aim of this study was to determine the value of T2 mapping for the non-invasive assessment of myocardial inflammation in different stages of systolic left ventricular dysfunction in dilated cardiomyopathy (DCM) in comparison with endomyocardial biopsy (EMB). Methods and results: A total of 132 subjects were enrolled between 2013 and 2016 (62 controls and 70 patients with DCM). All patients underwent CMR at 1.5 T and received coronary angiogram and EMB...
November 10, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29134367/imaging-of-cardiovascular-disease-in-pregnancy-and-the-peripartum-period
#10
REVIEW
Theodore Pierce, Meline Hovnanian, Sandeep Hedgire, Brian Ghoshhajra
Cardiovascular disease is an important cause of morbidity and mortality during pregnancy and the postpartum period. During pregnancy, the cardiovascular system undergoes extensive hemodynamic, hormonal, and microstructural changes which may exacerbate a preexisting underlying cardiovascular condition or predispose to cardiovascular complications not typically seen in young healthy women. Such conditions include spontaneous coronary artery dissection, atherosclerotic coronary artery disease, and peripartum cardiomyopathy...
November 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29133807/apelin-conformational-and-binding-equilibria-upon-micelle-interaction-primarily-depend-on-membrane-mimetic-headgroup
#11
Kyungsoo Shin, Muzaddid Sarker, Shuya K Huang, Jan K Rainey
Apelin is one of two peptide hormones that activate the apelin receptor (AR or APJ) to regulate the cardiovascular system, central nervous system, and adipoinsular axis. Here, we apply circular dichroism (CD) spectropolarimetry and nuclear magnetic resonance (NMR) spectroscopy to characterize the potential membrane binding by the two longest bioactive apelin isoforms, apelin-55 and -36, using membrane-mimetic dodecylphosphocholine (DPC), sodium dodecyl sulfate (SDS), and 1-palmitoyl-2-hydroxy-sn-glycero-3-[phospho-rac-(1-glycerol)] (LPPG) micelles...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29133275/normal-values-for-myocardial-deformation-within-the-right-heart-measured-by-feature-tracking-cardiovascular-magnetic-resonance-imaging
#12
Boyang Liu, Ahmed M Dardeer, William E Moody, Nicola C Edwards, Lucy E Hudsmith, Richard P Steeds
BACKGROUND: Reproducible and repeatable assessment of right heart function is vital for monitoring congenital and acquired heart disease. There is increasing evidence for the additional value of myocardial deformation (strain and strain rate) in determining prognosis. This study aims to determine the reproducibility of deformation analyses in the right heart using cardiovascular magnetic resonance feature tracking (FT-CMR); and to establish normal ranges within an adult population. METHODS: A cohort of 100 healthy subjects containing 10 males and 10 females from each decade of life between the ages of 20 and 70 without known congenital or acquired cardiovascular disease, hypertension, diabetes, dyslipidaemia or renal, hepatic, haematologic and systemic inflammatory disorders underwent FT-CMR assessment of right ventricular (RV) and right atrial (RA) myocardial strain and strain rate...
October 31, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29132649/doppler-versus-thermodilution-derived-coronary-microvascular-resistance-to-predict-coronary-microvascular-dysfunction-in-patients-with-acute-myocardial-infarction-or-stable-angina-pectoris
#13
Rupert P Williams, Guus A de Waard, Kalpa De Silva, Matthew Lumley, Kaleab Asrress, Satpal Arri, Howard Ellis, Awais Mir, Brian Clapp, Amedeo Chiribiri, Sven Plein, Paul F Teunissen, Maurits R Hollander, Michael Marber, Simon Redwood, Niels van Royen, Divaka Perera
Coronary microvascular resistance is increasingly measured as a predictor of clinical outcomes, but there is no accepted gold-standard measurement. We compared the diagnostic accuracy of 2 invasive indices of microvascular resistance, Doppler-derived hyperemic microvascular resistance (hMR) and thermodilution-derived index of microcirculatory resistance (IMR), at predicting microvascular dysfunction. A total of 54 patients (61 ± 10 years) who underwent cardiac catheterization for stable coronary artery disease (n = 10) or acute myocardial infarction (n = 44) had simultaneous intracoronary pressure, Doppler flow velocity and thermodilution flow data acquired from 74 unobstructed vessels, at rest and during hyperemia...
October 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29131444/native-t1-reference-values-for-nonischemic-cardiomyopathies-and-populations-with-increased-cardiovascular-risk-a-systematic-review-and-meta-analysis
#14
REVIEW
Maaike van den Boomen, Riemer H J A Slart, Enzo V Hulleman, Rudi A J O Dierckx, Birgitta K Velthuis, Pim van der Harst, David E Sosnovik, Ronald J H Borra, Niek H J Prakken
BACKGROUND: Although cardiac MR and T1 mapping are increasingly used to diagnose diffuse fibrosis based cardiac diseases, studies reporting T1 values in healthy and diseased myocardium, particular in nonischemic cardiomyopathies (NICM) and populations with increased cardiovascular risk, seem contradictory. PURPOSE: To determine the range of native myocardial T1 value ranges in patients with NICM and populations with increased cardiovascular risk. STUDY TYPE: Systemic review and meta-analysis...
November 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29122140/cardiac-tissue-characterization-and-imaging-in-autoimmune-rheumatic-diseases
#15
REVIEW
Sophie I Mavrogeni, Petros P Sfikakis, Loukia Koutsogeorgopoulou, George Markousis-Mavrogenis, Theodoros Dimitroulas, Genovefa Kolovou, George D Kitas
Inflammation, microvascular and macrovascular ischemia, valvular disease, and fibrosis are the main causes of cardiovascular disease (CVD) in autoimmune rheumatic diseases (ARDs). The silent presentation and the high mortality and/or morbidity of CVD in ARDs necessitate a reliable tool for early diagnosis. Noninvasive cardiovascular imaging, including echocardiography, nuclear imaging, cardiovascular computed tomography (CT), cardiac magnetic resonance (CMR), and hybrid imaging modalities, constitutes the main tool for monitoring of CVD in ARDs...
November 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29121956/regional-differences-in-prognostic-value-of-cardiac-valve-plane-displacement-in-systemic-light-chain-amyloidosis
#16
Marco M Ochs, Thomas Fritz, Nisha Arenja, Johannes Riffel, Florian Andre, Derliz Mereles, Fabian Aus dem Siepen, Ute Hegenbart, Stefan Schönland, Hugo A Katus, Matthias G W Friedrich, Sebastian J Buss
BACKGROUND: To compare the prognostic value of cardiac valve plane displacement (CVPD) on various locations in cardiac light chain (AL) amyloidosis. METHODS: Consecutive patients with biopsy-proven cardiac involvement in AL amyloidosis who had undergone cardiovascular magnetic resonance (CMR) between 2005 and 2014 in our institution, were retrospectively identified and data analyzed. The primary combined endpoint was all-cause mortality or heart transplantation...
November 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29121754/the-role-of-feature-tracking-in-cardiovascular-magnetic-resonance-imaging-in-hypertrophic-cardiomyopathy
#17
EDITORIAL
Theodore Murphy, Deirdre Waterhouse
No abstract text is available yet for this article.
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29121751/prognostic-implications-of-global-myocardial-mechanics-in-hypertrophic-cardiomyopathy-by-cardiovascular-magnetic-resonance-feature-tracking-relations-to-left-ventricular-hypertrophy-and-fibrosis
#18
Rocio Hinojar, Covadonga Fernández-Golfín, Ariana González-Gómez, Luis Miguel Rincón, Maria Plaza-Martin, Eduardo Casas, Ana García-Martín, Mª Angeles Fernandez-Mendez, Amparo Esteban, Jose Julio Jimenez Nacher, Jose Luis Zamorano
BACKGROUND: Interstitial fibrosis, myocardial fiber disarray and non-uniform shortening are common histological features of hypertrophic cardiomyopathy (HCM). The degree of LV hypertrophy and fibrosis are postulated to contribute to the impairment of myocardial shortening. Cardiovascular magnetic resonance myocardial (CMR) feature tracking (CMR-FT) has emerged as a robust method that provides quantitative measurements of myocardial deformation. Our aim was first to evaluate LV strain parameters in HCM by CMR-FT and their dependence on both functional parameters and late gadolinium enhancement (LGE); and secondly we sought to determine their association with major cardiovascular outcomes...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29120015/ascending-aortic-remodelling-in-fabry-disease-after-long-term-enzyme-replacement-therapy
#19
Pierre Monney, Salah Dine Qanadli, Steven Hajdu, Christel Tran, Juerg Schwitter, Olivier Dormond, Frédéric Barbey
BACKGROUND: Previous cross-sectional studies reported a high prevalence of ascending aorta dilations/aneurysms in male adults with Fabry disease, independently of cardiovascular risk factors. AIMS OF THE STUDY: To characterise the remodelling of the ascending aorta in classic Fabry disease under long-term enzyme replacement therapy. METHODS: Diameter of the ascending aorta was measured with magnetic resonance imaging at the sino-tubular junction (STJ), and proximal (pAsAo), and distal ascending aorta (dAsAo) at baseline, and after 5 and 10 years of enzyme replacement therapy in 15 adult Fabry patients (10 males; 5 females)...
November 9, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29119728/a-framework-for-designing-patient-specific-bioprosthetic-heart-valves-using-immersogeometric-fluid-structure-interaction-analysis
#20
Fei Xu, Simone Morganti, Rana Zakerzadeh, David Kamensky, Ferdinando Auricchio, Alessandro Reali, Thomas J R Hughes, Michael S Sacks, Ming-Chen Hsu
Numerous studies have suggested that medical image derived computational mechanics models could be developed to reduce mortality and morbidity due to cardiovascular diseases by allowing for patient-specific surgical planning and customized medical device design. In this work, we present a novel framework for designing prosthetic heart valves using a parametric design platform and immersogeometric fluid-structure interaction (FSI) analysis. We parameterize the leaflet geometry using several key design parameters...
November 9, 2017: International Journal for Numerical Methods in Biomedical Engineering
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