Feasibility of Strain Encoded Magnetic Resonance (SENC) at 0.55T.

Background: Low-field (<1.0T) wide-bore cardiovascular magnetic resonance (CMR) has the potential to improve accessibility by reducing costs and accommodating severely obese and claustrophobic patients. However, intrinsically reduced signal-to-noise ratio (SNR) may affect techniques such as strain-encoded magnetic resonance (SENC), a method to quantify regional strain that may be more sensitive than global function measurements to detect abnormalities.

Atorvastatin and Myocardial Extracellular Volume Expansion During Anthracycline-Based Chemotherapy.

Background: In the STOP-CA (Statins to Prevent the Cardiotoxicity From Anthracyclines) trial, atorvastatin preserved the left ventricular ejection fraction among patients with lymphoma treated with anthracyclines. The protective mechanisms are currently unclear.

Objectives: The aim of this study was to test the effect of atorvastatin on the anthracycline-associated increase in myocardial extracellular volume (ECV) using cardiac magnetic resonance imaging (MRI).

Prognostic Value of Myocardial T1 Mapping for Predicting Adverse Events in Hypertrophic Cardiomyopathy.

Background: In patients with hypertrophic cardiomyopathy, the prognostic value of myocardial T1 and extracellular volume fraction for adverse cardiovascular events has not been well defined.

Methods: A total of 663 consecutive participants with hypertrophic cardiomyopathy who underwent 3T cardiovascular magnetic resonance were recruited. The follow-up end points included heart failure (HF)-related death, HF hospitalization, and sudden cardiac death or aborted sudden cardiac death.

Test-retest Assessment of Biventricular Myocardial Oxidative Metabolism and Perfusion in Pulmonary Hypertension Patients Using C-acetate PET Imaging: A Pilot Study.

Purpose: C-acetate PET is used to measure biventricular oxygen myocardial consumption rate (MVO) and myocardial blood flow (MBF) changes associated with right ventricular (RV) remodelling. We studied PET reproducibility and repeatability for such RV assessments.

Procedures: 10 pulmonary hypertension (PH) patients underwent C-acetate PET.

Predictive Value of Left Atrial Strain for Thrombotic Events in Hypertrophic Cardiomyopathy without Atrial Fibrillation.

Purpose To assess the predictive value of left atrial (LA) fast long-axis strain derived from cardiac MRI for thrombotic events (TEs) in individuals with hypertrophic cardiomyopathy (HCM). Materials and Methods This secondary analysis of an ongoing prospective trial (Chinese Clinical Trial Registry: ChiCTR1900024094) included consecutive participants with HCM without atrial fibrillation (AF) who underwent cardiac MRI from January 2012 to December 2020. The LA fast long-axis strain was obtained by semiautomatically tracking the distance between the atrioventricular junction and the midposterior LA wall.

Body mass index, regional adipose deposition, and clinical outcomes in non-ischemic dilated cardiomyopathy: a prospective cohort study.

Aim: To assess the relationship between body mass index (BMI), subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), epicardial adipose tissue (EAT), pericardial adipose tissue (PAT) and clinical outcomes in dilated cardiomyopathy (DCM) patients.

Methods: Non-ischemic DCM patients were prospectively enrolled. Regional adipose tissue, cardiac function, and myocardial tissue characteristics were measured by cardiac magnetic resonance (CMR).

Left Ventricular Hemodynamic Forces Changes in Fabry Disease: A Cardiac Magnetic Resonance Study.

Background: Hemodynamic force (HDF) from cardiac MRI can indicate subclinical myocardial dysfunction, and help identify early cardiac changes in patients with Fabry disease (FD). The hemodynamic change in FD patients remains unclear.

Purpose: To explore HDF changes in FD and the potential of HDF measurements as diagnostic markers indicating early cardiac changes in FD.

Differences in myocardial involvement between new onset and longstanding systemic lupus erythematosus patients assessed by cardiovascular magnetic resonance.

Objectives: Subclinical myocardial involvement is common in systemic lupus erythematosus (SLE), but differences between new onset and longstanding SLE are not fully elucidated. This study compared myocardial involvement in new onset versus longstanding SLE using cardiovascular magnetic resonance (CMR).

Materials And Methods: We prospectively enrolled 24 drug-naïve new onset SLE patients, 27 longstanding SLE patients, and 20 healthy controls.

Increased epicardial adipose tissue is associated with left ventricular reverse remodeling in dilated cardiomyopathy.

Background: Epicardial adipose tissue (EAT) has been suggested to play paradoxical roles in patients with heart failure. The role of EAT in dilated cardiomyopathy (DCM) patients remains unclear. We aimed to assess the associations between the dynamic changes EAT and left ventricular reverse remodeling (LVRR) in DCM patients based on baseline and follow-up CMR.

Motion-Guided Deep Image Prior for Cardiac MRI.

Cardiovascular magnetic resonance imaging is a powerful diagnostic tool for assessing cardiac structure and function. Traditional breath-held imaging protocols, however, pose challenges for patients with arrhythmias or limited breath-holding capacity. We introduce Motion-Guided Deep Image prior (M-DIP), a novel unsupervised reconstruction framework for accelerated real-time cardiac MRI.

Screening for Fabry disease in patients with hypertrophic cardiomyopathy using cardiac magnetic resonance imaging.

Background: Fabry disease (FD) usually mimics hypertrophic cardiomyopathy (HCM). Decreased native T1 mapping and a unique late gadolinium enhancement (LGE) pattern by cardiac magnetic resonance (CMR) imaging are specific imaging markers for FD.

Purpose: Explore the performance of multiparametric CMR imaging in screening for FD in patients with a HCM phenotype.

Discrimination of Left Atrial Strain Patterns in Hypertensive Heart Disease and Hypertrophic Cardiomyopathy: a Cardiac Magnetic Resonance Feature.

To assess left atrial (LA) strain parameters using cardiovascular magnetic resonance imaging feature tracking (cardiac MRI-FT) for differentiating hypertensive heart disease (HHD) from hypertrophic cardiomyopathy (HCM), which are two left ventricular hypertrophic diseases that could present with similar morphologies in early stage but differ in clinical symptoms and treatment strategies. 45 patients with HHD, 85 patients with HCM (non-obstructive hypertrophic cardiomyopathy [HNCM, n = 45] and obstructive hypertrophic cardiomyopathy [HOCM, n = 40]) and 30 healthy controls (HC) were retrospectively included. LA volumes, strain, and strain rate were determined by manually contouring on the two- and four-chamber views of the CMR-FT module using CVI 42 software.

Distinguishing hypertensive cardiomyopathy from cardiac amyloidosis in hypertensive patients with heart failure: a CMR study with histological confirmation.

Purpose: Differentiation of the cause of left ventricular hypertrophy (LVH) is challenging in cases with co-existing hypertension. CMR offers assessment of diffuse myocardial abnormalities via T1 mapping with extracellular volume fraction (ECV) and macroscopic fibrosis via late gadolinium enhancement imaging (LGE). The goal of the study was to understand if CMR parameters can differentiate hypertensive cardiomyopathy (HC) from cardiac amyloidosis (CA) in patients with hypertension and heart failure, using endomyocardial biopsy (EMB) as the gold standard.

Effect of spin-lock frequency on quantitative myocardial T1ρ mapping.

Objectives: To use T1ρ mapping to assess myocardial fibrosis and to provide a reference for future clinical application, it is necessary to understand the factors influencing T1ρ values. This study explored the influence of different spin-locking frequencies on T1ρ values under a 3.0-T MR system.

The Association of Epicardial Adipose Tissue Volume and Atrial Fibrillation in Patients With Hypertrophic Cardiomyopathy: As Assessed by Cardiac MR.

Background: Epicardial adipose tissue (EAT) is a metabolically active visceral fat linked to cardiovascular disease. Prior studies demonstrated the predictive value of EAT volume (EATV) in atrial fibrillation (AF) among hypertrophic obstructive cardiomyopathy patients.

Purpose: To investigate the association between EATV and AF in hypertrophic cardiomyopathy (HCM).

The Prognostic Value of Left Ventricular Entropy From T1 Mapping in Patients With Hypertrophic Cardiomyopathy.

Background: The prognostic value of left ventricular (LV) entropy in hypertrophic cardiomyopathy (HCM) is unclear.

Objectives: This study aimed to assess the prognostic value of LV entropy from T1 mapping in HCM.

Methods: A total of 748 participants with HCM, who underwent cardiovascular magnetic resonance (CMR), were consecutively enrolled.

Motion-robust free-running volumetric cardiovascular MRI.

Purpose: To present and assess an outlier mitigation method that makes free-running volumetric cardiovascular MRI (CMR) more robust to motion.

Methods: The proposed method, called compressive recovery with outlier rejection (CORe), models outliers in the measured data as an additive auxiliary variable. We enforce MR physics-guided group sparsity on the auxiliary variable, and jointly estimate it along with the image using an iterative algorithm.

Changes in subclinical cardiac abnormalities 1 Year after recovering from COVID-19 in patients without clinical cardiac findings.

Aim: To evaluate the subclinical cardiac involvement in COVID-19 patients without clinical cardiac evidence using cardiac MR imaging.

Material And Methods: Participants recovered from COVID-19 without cardiac symptoms and no cardiovascular medical history were enrolled in a prospective cohort study. They underwent baseline cardiac MR and follow-up cardiac MR > 300 days after discharge (n = 20).

The impact of type 2 diabetes mellitus on the clinical profile, myocardial fibrosis, and prognosis in non-ischemic dilated cardiomyopathy: a prospective cohort study.

Background: The impact of the coexistence of type 2 diabetes mellitus (T2DM) in patients with non-ischemic dilated cardiomyopathy (DCM) on clinical profiles, myocardial fibrosis, and outcomes remain incompletely understood.

Method: A total of 1152 patients diagnosed with non-ischemic DCM were prospectively enrolled from June 2012 to October 2021 and categorized into T2DM and non-T2DM groups. Clinical characteristics, cardiac function, and myocardial fibrosis evaluated by CMR were compared between the two groups.

Prognostic value of mid-term cardiovascular magnetic resonance follow-up in patients with non-ischemic dilated cardiomyopathy: a prospective cohort study.

Background: The prognostic value of follow-up cardiovascular magnetic resonance (CMR) in dilated cardiomyopathy (DCM) patients is unclear. We aimed to investigate the prognostic value of cardiac function, structure, and tissue characteristics at mid-term CMR follow-up.

Methods: The study population was a prospectively enrolled cohort of DCM patients who underwent guideline-directed medical therapy with baseline and follow-up CMR, which included measurement of biventricular volume and ejection fraction, late gadolinium enhancement, native T1, native T2, and extracellular volume.