Data on the prognostic value of incidental coronary artery calcium (CAC) from nongated chest computed tomography scans are limited. Using paired computed tomography scans from the MESA (Multi-Ethnic Study of Atherosclerosis) exam 5, we evaluated the relationship between nongated CAC, gated CAC, and future cardiovascular events.

Peritricuspid, or cavotricuspid isthmus-dependent, atrial flutter is the most common arrhythmia in patients with dextro-transposition of the great arteries treated with atrial switch surgery, but its underlying mechanisms remain poorly understood.

Optimal treatment of coronary artery disease in patients undergoing transcatheter aortic valve implantation remains debated. Here, our aim was to analyze the impact of the diameter and location of coronary stenosis on outcomes in patients undergoing percutaneous coronary intervention (PCI) with transcatheter aortic valve implantation.

Cardiovascular imaging plays a central role in the diagnosis, risk stratification, and longitudinal management of cardiovascular disease during pregnancy. Physiological adaptations-including increased blood volume, cardiac output, and chamber remodeling-pose important challenges for image acquisition and interpretation, necessitating a nuanced understanding of normal versus pathological findings. This review provides a practical, cardiology-focused framework for the use of imaging in pregnant patients with suspected or established cardiovascular disease. We emphasize key aspects relevant to cardiac imagers, including appropriate modality selection, pregnancy-adapted imaging protocols, and interpretation of findings in the context of dynamic physiological changes. Transthoracic echocardiography remains the first-line modality, while cardiovascular magnetic resonance offers complementary, radiation-free evaluation in selected cases. Imaging techniques involving ionizing radiation, such as computed tomography and invasive angiography, should be reserved for acute or high-risk scenarios and carefully optimized to minimize fetal exposure. We further discuss common diagnostic pitfalls, limitations of each modality, and areas of uncertainty, including the use of contrast agents and thresholds for advanced imaging. The importance of integrating imaging findings into multidisciplinary decision-making within Pregnancy Heart Teams is highlighted. By providing a structured, clinically oriented approach, this review aims to support cardiac imagers in delivering safe, accurate, and evidence-informed care to this complex patient population.

Technetium-based cardiac amyloid radionuclide imaging enables noninvasive diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM), but conventional planar and visual semiquantitative approaches have important limitations. We developed the quantitative 3-dimensional Mayo 3D Score, defined as the ratio of mean left ventricular myocardial radiotracer uptake to right atrial blood-pool uptake using computed tomography (CT)-fused single-photon emission CT (SPECT) volumes of interest, and sought to validate its diagnostic performance against myocardial pathology.

Cardiac allograft vasculopathy (CAV) remains a major cause of morbidity and mortality after orthotopic heart transplantation. Although positron emission tomography myocardial perfusion imaging with quantitative myocardial blood flow (MBF) effectively detects CAV, access remains limited. Cadmium-zinc-telluride (CZT) single-photon emission computed tomography (SPECT) enables quantitative MBF assessment and may provide a more accessible alternative. However, the diagnostic and prognostic value of quantitative CZT SPECT-derived MBF for CAV is unknown.