Tetralogy of Fallot regurgitation energetics and kinetics: an intracardiac flow analysis of the right ventricle using computational fluid dynamics
This study investigates intracardiac flow parameters of the right ventricle (RV) of rTOF by computational fluid dynamics (CFD). cMRI of rTOF patients and controls were retrospectively included. Feature-tracking captured RV endocardial contours from long-axis/short-axis cine. Ventricular motion was reconstructed via diffeomorphic mapping, serving as domain boundary for CFD simulations. Vorticity (1/s), viscous energy loss (ELoss, mJ/L) and turbulent kinetic energy (TKE, mJ/L) were quantified in RV outflow tract (RVOT) and RV inflow. These parameters were normalized against total RV kinetic energy (KE) and RV inflow vorticit...
Source: The International Journal of Cardiovascular Imaging - April 26, 2024 Category: Radiology Source Type: research

Correlations and discrepancies between cardiac ultrasound, clinical diagnosis and the autopsy findings in early deceased patients with suspected cardiovascular emergencies
AbstractCardiac ultrasound (CUS), either focused cardiac ultrasound (FoCUS) or emergency echocardiography, is frequently used in cardiovascular (CV) emergencies. We assessed correlations and discrepancies between CUS, clinical diagnosis and the autopsy findings in early deceased patients with suspected CV emergencies. We retrospectively analysed clinical and autopsy data of 131 consecutive patients who died within 24  h of hospital admission. The type of CUS and its findings were analysed in relation to the clinical and autopsy diagnoses. CUS was performed in 58% of patients - FoCUS in 83%, emergency echocardiography in 1...
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Artificial intelligence-enhanced automation for M-mode echocardiographic analysis: ensuring fully automated, reliable, and reproducible measurements
AbstractTo enhance M-mode echocardiography ’s utility for measuring cardiac structures, we developed and evaluated an artificial intelligence (AI)-based automated analysis system for M-mode images through the aorta and left atrium [M-mode (Ao-LA)], and through the left ventricle [M-mode (LV)]. Our system, integrating two deep neural networ ks (DNN) for view classification and image segmentation, alongside an auto-measurement algorithm, was developed using 5,958 M-mode images [3,258 M-mode (LA-Ao), and 2,700 M-mode (LV)] drawn from a nationwide echocardiographic dataset collated from five tertiary hospitals. The perfor...
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Improvement in right heart function following kidney transplantation in esrd patients: insights from speckle tracking echocardiography analysis
This study aimed to evaluate the effects of KTx on the right heart chambers in ESRD patients. 57 adult KTx candidates were enrolled in this prospective longitudinal study, while 49 of them were included in the final assessment. Patients underwent a comprehensive cardiac assessment, including conventional echocardiography, speckle tracking echocardiography, and three-dimensional heart modeling both before and after surgery. Echocardiographic assessments showed significant increases in right ventricular (RV) ejection fraction, RV fractional area change (RVFAC), tricuspid annular plain systolic excursion, RV fractional shorte...
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Reevaluating aortic imaging: gadolinium-based spectral CT angiography
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Fetal transposition of the great arteries: 3D virtual and physical models from ultrasound datasets
AbstractTransposition of the great arteries (TGA) is a cyanotic congenital heart disease characterized by ventriculoarterial discordance and atrioventricular concordance with the great arteries in a parallel relationship. Prenatal diagnosis of TGA has implications for postnatal outcomes, allowing for planned delivery and perinatal management. Three-dimensional virtual or physical models of fetal TGA allow better understanding of fetal cardiac anomalies by parents and interactive discussion among the multidisciplinary team (obstetricians, pediatricians, maternal-fetal specialists, pediatric cardiologists, and cardiovascular...
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Cracking the heart code: using ChatGPT ’s Data Analyst feature for cardiovascular imaging research
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

NASCI case of the month: desmoplakin cardiomyopathy masquerading as acute myocarditis
We present a case of a young patient with chest pain. Labs and cardiac imaging were suspicious for acute myocarditis. Genetic testing revealed a diagnosis of desmoplakin cardiomyopathy. Desmoplakin cardiomyopathy may be considered in patients with recurrent acute myocarditis or a family history of cardiac disease to avoid the potential for misdiagnosis. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 23, 2024 Category: Radiology Source Type: research

Clinical characteristics, imaging findings, management, and outcomes of patients with scimitar syndrome at a tertiary referral healthcare center in Colombia
AbstractScimitar Syndrome is part of a complex spectrum of congenital cardiovascular anomalies related to anomalous pulmonary venous return. Depending on the extent of involvement, treatment can be either expectant or surgical. Prognosis and survival have been controversial, with some results supporting early surgical management. This research aims to disclose the outcomes and describe the management, clinical and imaging characteristics of patients diagnosed with Scimitar Syndrome treated in a tertiary referral healthcare center. Longitudinal descriptive observational study. The study included all patients diagnosed with ...
Source: The International Journal of Cardiovascular Imaging - April 18, 2024 Category: Radiology Source Type: research

A comparative analysis of deep learning-based location-adaptive threshold method software against other commercially available software
This study aimed to analyze the performance of the coronary artery segmentation of a software platform with a deep learning-based location-adaptive threshold method (DL-LATM) against commercially available software platforms using CCTA. The dataset from intravascular ultrasound (IVUS) of 26 vessel segments from 19 patients was used as the gold standard to evaluate the performance of each software platform. Statistical analyses (Pearson correlation coefficient [PCC], intraclass correlation coefficient [ICC], and Bland-Altman plot) were conducted for the lumen or plaque parameters by comparing the dataset of each software pl...
Source: The International Journal of Cardiovascular Imaging - April 18, 2024 Category: Radiology Source Type: research

Multimodality imaging of eosinophilic myocarditis (loeffler ’s endocarditis) in a patient with idiopathic hypereosinophilic syndrome
AbstractEosinophilic myocarditis can result in endomyocardial fibrosis affecting both ventricles, leading to restrictive cardiomyopathy. Multimodality imaging is crucial for diagnosis, as demonstrated in this case of a patient presenting with symptoms of heart failure. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 18, 2024 Category: Radiology Source Type: research

Assessment of atherosclerotic plaque burden: comparison of AI-QCT versus SIS, CAC, visual and CAD-RADS stenosis categories
This study assesses the agreement of Artificial Intelligence-Quantitative Computed Tomography (AI-QCT) with qualitative approaches to atherosclerotic disease burden codified in the multisociety 2022 CAD-RADS 2.0 Expert Consensus. 105 patients who underwent cardiac computed tomography angiography (CCTA) for chest pain were evaluated by a blinded core laboratory through FDA-cleared software (Cleerly, Denver, CO) that performs AI-QCT through artificial intelligence, analyzing factors such as % stenosis, plaque volume, and plaque composition. AI-QCT plaque volume was then staged by recently validated prognostic thresholds, and...
Source: The International Journal of Cardiovascular Imaging - April 17, 2024 Category: Radiology Source Type: research

Radiomics-based detection of acute myocardial infarction on noncontrast enhanced midventricular short-axis cine CMR images
In this study we want to assess whether characterizing this inherent contrast pattern of noncontrast-enhanced short axis (SAX) cine images via radiomics is sufficient to distinguish subjects with acute myocardial infarction (AMI) from controls. Cine balanced steady-state free-precession images acquired at 1.5  T from 99 AMI and 49 control patients were included. First, radiomic feature extraction of the left ventricular myocardium of end-diastolic (ED) and end-systolic (ES) frames was performed based on automated (AUTO) or manually corrected (MAN) segmentations. Next, top features were selected based on optimal classifica...
Source: The International Journal of Cardiovascular Imaging - April 17, 2024 Category: Radiology Source Type: research

The impact of severe obesity on image quality and ventricular function assessment in echocardiography and cardiac MRI
This study sought to evaluate the impact of severe obesity on image quality and ventricular function  assessment in cardiovascular magnetic resonance (MRI) and trans-thoracic echocardiography (TTE). We studied 100 consecutive patients who underwent clinically indicated cardiac MRI and TTE studies within 12 months between July 2017 and December 2020; 50 (28 females and 22 males; 54.5 ± 18.7  years) with normal body mass index (BMI) (18.5–25 kg/m2) and 50 (21 females and 29 males; 47.2  ± 13.3 years) with severe obesity (BMI ≥ 40 kg/m2). MRI and TTE image quality scores were compared within and across...
Source: The International Journal of Cardiovascular Imaging - April 16, 2024 Category: Radiology Source Type: research

Prediction of heart failure and all-cause mortality using cardiac ultrasomics in patients with breast cancer
AbstractBreast cancer chemotherapy/immunotherapy can be associated with treatment-limiting cardiotoxicity. Radiomics techniques applied to ultrasound, known as ultrasomics, can be used in cardio-oncology to leverage echocardiography for added prognostic value. To utilize ultrasomics features collected prior to antineoplastic therapy to enhance prediction of mortality and heart failure (HF) in patients with breast cancer. Patients were retrospectively recruited in a study at the West Virginia University Cancer Institute. The final inclusion criteria were met by a total of 134 patients identified for the study. Patients were...
Source: The International Journal of Cardiovascular Imaging - April 16, 2024 Category: Radiology Source Type: research