Artificial intelligence (AI)-enhanced coronary computed tomography angiography (CCTA) analyses may enhance the detection of chronic coronary total occlusions (CTOs) and facilitate pre-procedural planning for CTO percutaneous coronary intervention (PCI).
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Applying dual energy computed tomography to postmortem coronary computed tomographic angiography
Medical examiners’ offices are increasingly utilizing postmortem computed tomography (CT). While dual energy CT (DECT) has been applied in both clinical and postmortem settings, research on the application to postmortem coronary computed tomographic angiography (PMcCTA) is extremely limited. This study aims to evaluate whether DECT performed following PMcCTA using two contrast agents with differing chemical and physical properties allows for agent discrimination and simultaneous characterization…
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Preoperative imaging accuracy and resource utilization in sinus venosus atrial septal defects
Sinus venosus atrial septal defects (SVASDs) have a strong association with partial anomalous pulmonary venous return (PAPVR). Symptoms are uncommon in childhood and the diagnosis may be delayed for several years. Surgery is typically postponed to pre-school age as the lesion is well-tolerated. Preoperative follow-up commonly includes periodic transthoracic echocardiograms (TTE) and electrocardiograms (ECG). An important component of preoperative planning includes accurate delineation of PAPVR w…
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Photon-counting detector computed tomography for evaluation of coronary artery disease in older adults
Coronary computed tomography angiography (CCTA) in older adults is often limited by heavy coronary artery calcification and associated blooming artifacts. Photon-counting detector CT (PCD-CT) offers higher spatial resolution and reduced artifacts compared with conventional energy-integrating detector CT (EID-CT). We sought to investigate diagnostic performance and clinical impact of PCD-CT in older adults.
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Ultrahigh-resolution photon-counting detector coronary CT angiography: Practical insights and workflow integration from a high-volume center
Ultra-high-resolution (UHR) photon-counting detector CT represents a significant advancement in coronary CT angiography (CCTA), offering 0.2 mm spatial resolution and enhanced spectral capabilities. This article presents practical insights and optimized protocols from a high-volume center, focusing on acquisition, reconstruction, and contrast techniques tailored for UHR cardiac imaging. Recommendations address patient selection, workflow integration, and technical challenges, aiming to guide bro…
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Reply: Balancing innovation and evidence: Coronary computed tomography angiography in preoperative valve surgery
We welcome Celik et al.’s1 thoughtful comments on our recent article, “Coronary CT angiography versus invasive angiography for preoperative coronary assessment prior to valve surgery”.2 We appreciate the opportunity to clarify and expand on several important issues they have raised.
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The role of serum phosphate and calcium levels in coronary artery calcification progression: A multicenter, longitudinal cohort study
Table of Contents Summary Higher serum phosphate levels within the normal range were associated with a higher likelihood of prevalent CAC, higher baseline CAC scores, and faster longitudinal CAC score progression. The effect of phosphate on CAC progression had a synergistic interaction with baseline CAC scores and serum calcium levels. Our results identify phosphate as a target to slow CAC progression and ultimately to lower cardiovascular risk.
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Implications of computed tomography reconstruction algorithms on coronary atheroma composition: A head-to-head comparison with multimodality near-infrared spectroscopy intravascular ultrasound imaging
To evaluate the performance of various computed tomography angiography (CTA) reconstruction methods in assessing coronary plaque composition using near-infrared spectroscopy-intravascular ultrasound (NIRS-IVUS) as the reference standard.
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Deep-learning analysis of computed tomography coronary angiography data enables more accurate computation of the shear stress distribution than conventional analysis by experts: A head-to-head comparison with near-infrared spectroscopy-intravascular ultrasound-based modelling
Coronary computed tomography angiography (CTA) is the primary non-invasive test for detecting coronary artery disease (CAD) and constitutes an attractive alternative to intravascular imaging for the study of pathophysiological mechanisms that are involved in atherosclerotic evolution. Deep learning (DL) methodologies offers potential to overcome limitations in CTA analysis enabling reproducibly and fast and accurate segmentation of large datasets however their value in assessing coronary physiol…
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Use of cardiac CT in the preoperative assessment for non-cardiac surgery – What are the guideline recommendations?
Peri-operative cardiovascular complications remain a leading cause of morbidity and mortality in patients undergoing non-cardiac surgery (NCS). Demographics of patients undergoing surgery show trends towards increasing numbers of elderly patients and increasing numbers of patients with multiple cardiovascular comorbidities.1 Given the rising prevalence of cardiovascular disease (CVD) and the more than 300 million surgical procedures performed worldwide each year, accurate risk stratification is …