The International Journal of Cardiovascular Imaging This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Super-resolution 4D flow MRI to quantify aortic regurgitation using computational fluid dynamics and deep learning
AbstractChanges in cardiovascular hemodynamics are closely related to the development of aortic regurgitation (AR), a type of valvular heart disease. Metrics derived from blood flows are used to indicate AR onset and evaluate its severity. These metrics can be non-invasively obtained using four-dimensional (4D) flow magnetic resonance imaging (MRI), where accuracy is primarily dependent on spatial resolution. However, insufficient resolution often results from limitations in 4D flow MRI and complex aortic regurgitation hemodynamics. To address this, computational fluid dynamics simulations were transformed into synthetic 4...
Source: The International Journal of Cardiovascular Imaging - June 1, 2023 Category: Radiology Source Type: research

Convolutional neural networks on risk stratification of patients with suspected coronary artery disease undergoing coronary computed tomography angiography
AbstractTo assess the prognostic value of convolutional neural networks (CNN) on coronary computed tomography angiography (CCTA) in comparison to conventional computed tomography (CT) reporting and clinical risk scores. 5468 patients who underwent CCTA with suspected coronary artery disease (CAD) were included. Primary endpoint was defined as a composite of all-cause death, myocardial infarction, unstable angina or late revascularization (>  90 days after CCTA). Early revascularization was additionally included as a training endpoint for the CNN algorithm. Cardiovascular risk stratification was based on Morise score ...
Source: The International Journal of Cardiovascular Imaging - June 1, 2023 Category: Radiology Source Type: research

Left ventricular global longitudinal strain can detect subclinical left ventricular systolic dysfunction in adult patients with primary nephrotic syndrome
In this study, we aimed to investigate LVGLS in Primary Nephrotic Syndrome (PNS) patients with normal LVEF%. Patients with histopathologically confirmed PNS were evaluated for this prospective single-center study. Patients with similar age and gender characteristics without nephrotic syndrome were included as the control group. LVGLS measurements were performed by 2D speckle tracking echocardiography. A total of 171 patients, 57 with PNS and 114 in the control group, were included in the study. The mean age was 38 ±12 years in the study population, and 95(56%) of the patients were women. LVEF% was 60.2±4.2 in the PNS gro...
Source: The International Journal of Cardiovascular Imaging - June 1, 2023 Category: Radiology Source Type: research

Association of left atrial size and function by cardiac magnetic resonance imaging with long term outcomes in patients with hypertrophic cardiomyopathy
AbstractLeft atrial (LA) function and strain are being investigated as markers of disease progression in hypertrophic cardiomyopathy (HCM). To assess LA function and strain by cardiac magnetic resonance imaging (MRI) in patients with HCM and evaluate the association of these parameters with long-term clinical outcomes. We retrospectively evaluated 50 HCM patients and 50 patients with no significant cardiovascular disease (control) who underwent clinically indicated cardiac MRI. We calculated LA volumes using the Simpson area –length method to derive LA ejection fraction and expansion index. MRI-derived left atrial reserv...
Source: The International Journal of Cardiovascular Imaging - June 1, 2023 Category: Radiology Source Type: research

Associations of cardiovascular and diabetes-related risk factors with myocardial perfusion reserve assessed by 201Tl/99mTc-tetrofosmin single-photon emission computed tomography in patients with diabetes mellitus and stable coronary artery disease
AbstractWe aimed to examine the associations of cardiovascular risk factors with myocardial perfusion reserve (MPR) in patients with type 2 diabetes and stable coronary artery disease. The study patients were retrospectively identified from a database of patients with diabetes and stable coronary artery disease at Asan Medical Center (Seoul, Republic of Korea), covering the period from 2017 to 2019. The primary outcome variable was MPR assessed by dynamic stress201Tl/rest99mTc-tetrofosmin SPECT. Univariable and stepwise multivariable analyses were performed to assess the associations of cardiovascular risk factors with MPR...
Source: The International Journal of Cardiovascular Imaging - June 1, 2023 Category: Radiology Source Type: research