2,834 results match your criteria JACC. Cardiovascular imaging[Journal]


Diagnostic Value of Advanced Imaging Modalities for the Detection and Differentiation of Prosthetic Valve Obstruction: A Systematic Review and Meta-Analysis.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

Objectives: This meta-analysis investigated the diagnostic values of transthoracic echocardiography (TTE), 2-dimensional (2D) and 3-dimensional (3D) transesophageal echocardiography (TEE), and multidetector-row computed tomography (MDCT) in patients with suspected mechanical prosthetic valve obstruction (PVO) for detecting subprosthetic mass and differentiating its causes.

Background: Diagnostic values of advanced imaging modalities, such as MDCT and TEE, for the detection and differentiation of PVO have not been investigated.

Methods: PubMed and EMBASE were systematically searched for studies that evaluated PVO using imaging modalities. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.033DOI Listing
February 2019

First Clinical Experience With 3-Dimensional Echocardiographic Transillumination Rendering.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Section of Cardiology, University of Chicago Medical Center, Chicago, Illinois. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2018.12.012DOI Listing
February 2019

Additional Prognostic Value of 2D Right Ventricular Speckle-Tracking Strain for Prediction of Survival in Heart Failure and Reduced Ejection Fraction: A Comparative Study With Cardiac Magnetic Resonance.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Brussels, Belgium; and Pôle de Recherche Cardiovasculaire, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium. Electronic address:

Objectives: This study sought to compare the prognostic value of 2-dimensional (2D) right ventricular (RV) speckle tracking (STE) against cardiac magnetic resonance (CMR) RV ejection fraction (EF) and feature tracking (FT) and conventional echocardiographic parameters on overall and cardiovascular (CV) survival in patients with heart failure with reduced EF (HFrEF).

Background: Prior works showed that RV systolic function predicts prognosis in HFrEF. 2D RVSTE had recently been proposed as new echocardiographic method to evaluate RV dysfunction. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.028DOI Listing
February 2019

Automated Pixel-Wise Quantitative Myocardial Perfusion Mapping by CMR to Detect Obstructive Coronary Artery Disease and Coronary Microvascular Dysfunction: Validation Against Invasive Coronary Physiology.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Royal Free Hospital, London, United Kingdom; Division of Medicine, University College London, United Kingdom. Electronic address:

Objectives: The study sought to assess the performance of cardiovascular magnetic resonance (CMR) myocardial perfusion mapping against invasive coronary physiology reference standards for detecting coronary artery disease (CAD, defined by fractional flow reserve [FFR] ≤0.80), microvascular dysfunction (MVD) (defined by index of microcirculatory resistance [IMR] ≥25) and the ability to differentiate between the two.

Background: Differentiation of epicardial (CAD) and MVD in patients with stable angina remains challenging. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.12.022DOI Listing
February 2019

Mechanism of Abnormal Septal Motion in Left Bundle Branch Block: Role of Left Ventricular Wall Interactions and Myocardial Scar.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Institute for Surgical Research, Oslo University Hospital and University of Oslo, Oslo, Norway; Center for Cardiological Innovation, Oslo University Hospital, Oslo, Norway; Department of Cardiology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway. Electronic address:

Objectives: This study sought to investigate how regional left ventricular (LV) function modifies septal motion in left bundle branch block (LBBB).

Background: In LBBB, the interventricular septum often has marked pre-ejection shortening, followed by immediate relengthening (rebound stretch). This motion, often referred to as septal flash, is associated with positive response to cardiac resynchronization therapy (CRT). Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.030DOI Listing
February 2019

Global Longitudinal Strain as a Predictor of First and Subsequent Arrhythmic Events in Remotely Monitored ICD Patients With Structural Heart Disease.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Cardiology and Arrhythmology Clinic, Marche Polytechnic University, University Hospital Umberto I, Lancisi-Salesi, Ancona, Italy.

Objectives: This study sought to assess speckle-tracking-derived parameters as predictors of first and subsequent ventricular events in patients with structural heart disease and implantable cardioverter-defibrillators (ICD).

Background: Left ventricular ejection fraction (LVEF), the current primary parameter of risk stratification for ventricular arrhythmias (VAs) in structural heart diseases is burdened by many limitations.

Methods: In this retrospective, observational study, all consecutive patients with structural heart disease were admitted for ICD implantation. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.12.020DOI Listing
February 2019

Detecting Coronary Inflammation With Perivascular Fat Attenuation Imaging: Making Sense From Perivascular Attenuation Maps.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Cardiology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom; Caristo Diagnostics, Oxford, United Kingdom.

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http://dx.doi.org/10.1016/j.jcmg.2018.12.024DOI Listing
February 2019

Relationship Between Focal and Diffuse Fibrosis Assessed by CMR and Clinical Outcomes in Heart Failure With Preserved Ejection Fraction.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Cardiovascular Sciences, University of Leicester, National Institute for Health Research, Leicester Biomedical Research Centre, Leicester, United Kingdom.

Objectives: This study sought to assess the presence and extent of focal and diffuse fibrosis in heart failure in patients with preserved ejection fraction (HFpEF) compared to asymptomatic control subjects, and the relationship of fibrosis to clinical outcome.

Background: Myocardial fibrosis has been implicated in the pathophysiology of HFpEF.

Methods: In this prospective, observational study, 140 subjects of similar age and sex (HFpEF: n = 96; control subjects: n = 44; 73 ± 8 years of age; 49% males) underwent cardiac magnetic resonance imaging. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.031DOI Listing
February 2019

Peri-Coronary Adipose Tissue Density Is Associated With F-Sodium Fluoride Coronary Uptake in Stable Patients With High-Risk Plaques.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Imaging (Division of Nuclear Medicine), Medicine, and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California. Electronic address:

Objectives: This study aimed to assess the association between increased lesion peri-coronary adipose tissue (PCAT) density and coronary F-sodium fluoride (F-NaF) uptake on positron emission tomography (PET) in stable patients with high-risk coronary plaques (HRPs) shown on coronary computed tomography angiography (CTA).

Background: Coronary F-NaF uptake reflects the rate of calcification of coronary atherosclerotic plaque. Increased PCAT density is associated with vascular inflammation. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.032DOI Listing
February 2019

Straining for New Prognostic Predictors in Asymptomatic Severe Aortic Regurgitation.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Division of Cardiology, Cook County Health and Hospitals System, Chicago, Illinois.

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http://dx.doi.org/10.1016/j.jcmg.2019.01.004DOI Listing
February 2019

Prognostic Role of Cardiac MRI and Conventional Risk Factors in Myocardial Infarction With Nonobstructed Coronary Arteries.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom; School of Clinical Sciences, Faculty of Health Sciences, University of Bristol, Bristol, United Kingdom; Bristol National Institute of Health Research, Biomedical Research Centre, Bristol, United Kingdom. Electronic address:

Objectives: This study sought to assess the prognostic impact of cardiovascular magnetic resonance (CMR) and conventional risk factors in patients with myocardial infarction with nonobstructed coronaries (MINOCA).

Background: Myocardial infarction with nonobstructed coronary arteries (MINOCA) represents a diagnostic dilemma, and the prognostic markers have not been clarified.

Methods: A total of 388 consecutive patients with MINOCA undergoing cardiac magnetic resonance (CMR) assessment were identified retrospectively from a registry database and prospectively followed for a primary clinical endpoint of all-cause mortality. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.12.023DOI Listing
February 2019

Magnetic Resonance Imaging of Myocardial Fibrosis in Heart Failure With Preserved Ejection Fraction: Ready for Prime Time?

Authors:
Julio A Chirinos

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Medicine, Hospital of the University of Pennsylvania and University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2018.12.019DOI Listing
February 2019

Right Ventricular Function: The Barometer of All That Lies Ahead.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Clinical Research Domain, Baker Heart and Diabetes Institute, Melbourne, Australia; Division of Cardiology, University Hospitals Leuven, Leuven, Belgium.

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http://dx.doi.org/10.1016/j.jcmg.2018.12.018DOI Listing
February 2019
1 Read

Noninvasive Precursors of Coronary Chronic Total Occlusions: Fantasy or Reality?

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, Poland. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2019.01.005DOI Listing
February 2019

Clinical and Computed Tomography Angiographic Predictors of Coronary Lesions That Later Progressed to Chronic Total Occlusion.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.

Objectives: This study aimed to investigate clinical and coronary computed tomographic angiography (CTA) characteristics of lesions that progressed to chronic total occlusion (CTO).

Background: CTO is one of the most common reasons for referral to coronary artery bypass surgery. Prediction and adequate early management for future CTO lesions may be beneficial. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.12.026DOI Listing
February 2019

Velocities of Naturally Occurring Myocardial Shear Waves Increase With Age and in Cardiac Amyloidosis.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Cardiovascular Science, Division of Cardiology, University Hospital Leuven, University of Leuven, Leuven, Belgium. Electronic address:

Objectives: This study sought to evaluate whether velocity of naturally occurring myocardial shear waves (SW) could relate to myocardial stiffness (MS) in vivo.

Background: Cardiac SW imaging has been proposed as a noninvasive tool to assess MS. SWs occur after mechanical excitation of the myocardium (e. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.029DOI Listing
February 2019

Long-Term Outcomes After Aortic Valve Surgery in Patients With Asymptomatic Chronic Aortic Regurgitation and Preserved LVEF: Impact of Baseline and Follow-Up Global Longitudinal Strain.

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Valve Center, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio. Electronic address:

Objectives: This study sought to determine whether baseline left ventricular global longitudinal strain (LV-GLS) and changes in left ventricular ejection fraction (LVEF) in a subgroup of subjects at post-operative follow-up added prognostic value in patients undergoing aortic valve (AV) surgery.

Background: In patients with chronic severe aortic regurgitation (AR) and preserved LVEF, sensitive markers are needed to decide timing of AV surgery.

Methods: This was an observational study in 865 patients (asymptomatic/mildly symptomatic, 52 ± 15 years of age, 79% men) with ≥3+ chronic AR and preserved LVEF of ≥50% who underwent AV surgery between 2003 and 2015. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.12.021DOI Listing
February 2019

Multimodality Imaging of Suspected Mechanical Prosthetic Valve Obstruction: Importance of the Patient and the Clinical Context.

Authors:
Paul A Grayburn

JACC Cardiovasc Imaging 2019 Feb 11. Epub 2019 Feb 11.

Department of Internal Medicine, Division of Cardiology, Baylor University Medical Center and Baylor Scott and White Heart Hospital in Dallas, Dallas, Texas. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2018.12.025DOI Listing
February 2019

One In, One Out, Many More to Go.

JACC Cardiovasc Imaging 2019 Feb;12(2):385-387

Division of Cardiology, University of Minnesota and Veterans Affairs Medical Center, Minneapolis, Minnesota. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2019.01.001DOI Listing
February 2019

The Authors' Reply.

JACC Cardiovasc Imaging 2019 Feb;12(2):383-384

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http://dx.doi.org/10.1016/j.jcmg.2018.12.010DOI Listing
February 2019

The Authors Reply.

JACC Cardiovasc Imaging 2019 Feb;12(2):382

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http://dx.doi.org/10.1016/j.jcmg.2018.12.009DOI Listing
February 2019

Imaging and Impact of Myocardial Fibrosis in Aortic Stenosis.

JACC Cardiovasc Imaging 2019 Feb;12(2):283-296

British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom. Electronic address:

Aortic stenosis is characterized both by progressive valve narrowing and the left ventricular remodeling response that ensues. The only effective treatment is aortic valve replacement, which is usually recommended in patients with severe stenosis and evidence of left ventricular decompensation. At present, left ventricular decompensation is most frequently identified by the development of typical symptoms or a marked reduction in left ventricular ejection fraction <50%. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.026DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6361867PMC
February 2019
1 Read

How Do We Reconcile Echocardiography, Computed Tomography, and Hybrid Imaging in Assessing Discordant Grading of Aortic Stenosis Severity?

JACC Cardiovasc Imaging 2019 Feb;12(2):267-282

Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, Université Laval, Québec City, Québec, Canada. Electronic address:

Up to 40% of patients with aortic stenosis (AS) present with a "discordant grading" usually referred to as "low-gradient AS." This article presents a step-by-step integrative approach overview of the utility, limitations, and complementary role of the different imaging modalities for the assessment of AS severity with a special emphasis on the reconciliation of discordant grading. The first step is to confirm the validity of echocardiographic measures of AS severity. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.027DOI Listing
February 2019
1 Read

The Role of Imaging of Flow Patterns by 4D Flow MRI in Aortic Stenosis.

JACC Cardiovasc Imaging 2019 Feb;12(2):252-266

Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois. Electronic address:

Aortic valve stenosis (AS) is the most prevalent valvular heart disease in developed countries and is associated with the development of severe secondary complications such as aortic dilatation and aneurysm. Emerging evidence suggests that the modified hemodynamic environment associated with AS can cause altered flow patterns in the ascending aorta associated with aortic wall remodeling and development of aortopathy. Recent advances in magnetic resonance imaging (MRI) allow for the comprehensive visualization and quantification of in vivo aortic flow pattern dynamics. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.10.034DOI Listing
February 2019
1 Read

Precision Medicine for Aortic Stenosis: The Future of Cardiology Today.

JACC Cardiovasc Imaging 2019 Feb;12(2):249-251

Institute for Next Generation Healthcare, Division of Genetics and Data Science, Medical Scientist Training Program, Icahn School of Medicine at Mount Sinai, New York, New York.

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http://dx.doi.org/10.1016/j.jcmg.2018.12.005DOI Listing
February 2019
1 Read

Network Tomography for Understanding Phenotypic Presentations in Aortic Stenosis.

JACC Cardiovasc Imaging 2019 Feb;12(2):236-248

Division of Cardiology, West Virginia University Heart & Vascular Institute, Morgantown, West Virginia. Electronic address:

Objectives: This study sought to build a patient-patient similarity network using multiple features of left ventricular (LV) structure and function in patients with aortic stenosis (AS). The study further validated the observations in an experimental murine model of AS.

Background: The LV response in AS is variable and results in heterogeneous phenotypic presentations. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S1936878X183110
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http://dx.doi.org/10.1016/j.jcmg.2018.11.025DOI Listing
February 2019
2 Reads

Tricuspid Regurgitation: Moderate (or More) Is a Burden for the Right Ventricle.

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

Department of Cardiology, Cleveland Clinic, Cleveland, Ohio.

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https://linkinghub.elsevier.com/retrieve/pii/S1936878X183067
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http://dx.doi.org/10.1016/j.jcmg.2018.07.018DOI Listing
January 2019
4 Reads

Do Guideline-Based Indications Result in an Outcome Penalty for Patients With Severe Aortic Regurgitation?

JACC Cardiovasc Imaging 2019 Jan 16. Epub 2019 Jan 16.

Pôle de Recherche Cardiovasculaire, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain and the Divisions of Cardiology and Cardiothoracic Surgery, Cliniques Universitaires Saint-Luc, Brussels, Belgium. Electronic address:

Objectives: The present study examines whether improvements have reduced the negative impact of guideline triggers on postoperative outcomes.

Background: European and American guidelines for the management of severe aortic regurgitation (AR) define the triggers for AR surgery. These triggers are based on the results of studies performed in the 1990s analyzing outcomes of patients who underwent AR surgery in the 1980s. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.022DOI Listing
January 2019
1 Read

Noninvasive Testing in Patients With End-Stage Liver Disease: When and How?

Authors:
Luc A Pierard

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

Department of Cardiology, University Hospital Sart Tilman, Liège, Belgium. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2018.11.020DOI Listing
January 2019
1 Read

Radiomic Analysis of Myocardial Native T Imaging Discriminates Between Hypertensive Heart Disease and Hypertrophic Cardiomyopathy.

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

Department of Medicine (Cardiovascular Division), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts. Electronic address:

Objectives: This study sought to examine the diagnostic ability of radiomic texture analysis (TA) on quantitative cardiovascular magnetic resonance images to differentiate between hypertensive heart disease (HHD) and hypertrophic cardiomyopathy (HCM).

Background: HHD and HCM are associated with increased left ventricular wall thickness (LVWT). Contemporary guidelines define HCM as LVWT ≥15 mm that is unexplained by other disease, which complicates diagnosis in cases of co-occurrences. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.11.024DOI Listing
January 2019
3 Reads

Myocardial Blood Flow as a Holistic Metric for Predicting Remodeling and Clinical Outcomes After a Myocardial Infarction?

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

School of Bioengineer and Medical Sciences, Life Sciences, King's College London, United Kingdom; Department of Imaging and Pathology KU Leuven, Leuven, Belgium. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2018.11.013DOI Listing
January 2019

Native T Mapping in the Diagnosis of Cardiac Allograft Rejection: A Prospective Histologically Validated Study.

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

Heart and Lung Transplant Unit, St. Vincent's Hospital, Sydney, Australia.

Objectives: This study aimed to determine the role of T mapping in identifying cardiac allograft rejection.

Background: Endomyocardial biopsy (EMBx), the current gold standard to diagnose cardiac allograft rejection, is associated with potentially serious complications. Cardiac magnetic resonance (CMR)-based T mapping detects interstitial edema and fibrosis, which are important markers of acute and chronic rejection. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S1936878X183107
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http://dx.doi.org/10.1016/j.jcmg.2018.10.027DOI Listing
January 2019
6 Reads

Acute Microvascular Impairment Post-Reperfused STEMI Is Reversible and Has Additional Clinical Predictive Value: A CMR OxAMI Study.

JACC Cardiovasc Imaging 2019 Jan 9. Epub 2019 Jan 9.

Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom. Electronic address:

Objectives: This study sought to investigate the clinical utility and the predictive relevance of absolute rest myocardial blood flow (MBF) by cardiac magnetic resonance (CMR) in acute myocardial infarction.

Background: Microvascular obstruction (MVO) remains one of the worst prognostic factors in patients with reperfused ST-segment elevation myocardial infarction (STEMI). Clinical trials have focused on cardioprotective strategies to maintain microvascular functionality, but there is a need for a noninvasive test to determine their efficacy. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.10.028DOI Listing
January 2019

Sex Differences in Coronary Artery and Thoracic Aorta Calcification and Their Association With Cardiovascular Mortality in Heavy Smokers.

JACC Cardiovasc Imaging 2019 Jan 16. Epub 2019 Jan 16.

Image Sciences Institute, University Medical Center Utrecht, Utrecht, the Netherlands.

Objectives: The aim of this study was to investigate sex differences in the prevalence, extent, and association of coronary artery calcium (CAC) and thoracic aorta calcium (TAC) scores with cardiovascular mortality in a population eligible for lung screening.

Background: CAC and TAC scores derived from chest computed tomography (CT) might be useful biomarkers for individualized cardiovascular disease prevention and could be especially relevant in high-risk populations such as heavy smokers. Therefore, it is important to know the prevalence of arterial calcifications in male and female heavy smokers, and if there are differences in the predictive value calcifications carry. Read More

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http://dx.doi.org/10.1016/j.jcmg.2018.10.026DOI Listing
January 2019