Imaging

More frequent chest x-ray screenings of children with epicardial pacemakers may help identify those at risk of coronary artery compression, according to the authors of a study published online Aug. 13 in HeartRhythm.
A machine learning algorithm derived from thoracic phase signals can identify obstructive coronary artery disease (CAD) with the same accuracy as existing functional tests, according to a study published Aug. 8 in PLOS One. The signals can be collected in about three minutes and don’t require the patient to exercise or be exposed to radiation, contrast media or pharmacological stress.
Coronary microvascular dysfunction (CMD) identified with cardiac stress PET testing was a better predictor of adverse events among obese patients than body mass index (BMI) and other traditional risk factors, researchers reported in the Journal of the American College of Cardiology.
Instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR) were equally safe in deferring patients from coronary revascularization, according to a pooled analysis of two randomized trials published Aug. 6 in JACC: Cardiovascular Interventions.
In a single-center study of smokers with heart failure, those who also had emphysema identified by CT were twice as likely to be rehospitalized for heart failure in the following two years.
A group of researchers from a Veterans Affairs health system in California shared their experience with limited left ventricular echocardiography, something they believe could reduce the cost and time required for testing in select patients.
Optical coherence tomography (OCT) can detect coronary vascular changes beyond the capabilities of angiography in pediatric heart transplant recipients, according to a study published July 18 in JACC: Cardiovascular Imaging.
Twice as many U.S. deaths due to cardiac amyloidosis were reported in 2015 than in 1979, but a study in JAMA Cardiology suggests the disease remains vastly underdiagnosed.
A quantification of myocardial blood flow using CT perfusion (CTP) imaging was strongly predictive of major adverse cardiac events (MACE) and offered additional prognostic ability when added to coronary CT angiography, researchers reported in JACC: Cardiovascular Imaging.
Interest in Tc 99m PYP is growing as new therapies for cardiac amyloidosis show promise in late-stage clinical trials.
Quantitative flow ratio (QFR) allows for the functional assessment of stenosis on par with fractional flow reserve (FFR) but doesn’t require a guidewire, an international group of researchers reported in the Journal of the American Heart Association.
Patients with stable coronary artery disease (CAD) who were evaluated with either cardiac magnetic resonance (CMR) or conventional angiography showed similar rates of myocardial infarction and death at one and three years of follow-up, according to a study published in JACC: Cardiovascular Imaging.
Hybrid imaging with coronary CT angiography (CCTA) and single photon emission CT (SPECT) can provide powerful prognostic value for patients being evaluated for coronary artery disease, according to a single-center study published online July 3 in Radiology.
Two neurologists from Stanford University believe their specialty must take the lead on ensuring patients with cardiovascular implantable electronic devices (CIEDs) have access to MRI when necessary.
UnitedHealthcare (UHC) will now cover the HeartFlow FFRct Analysis, a noninvasive technology that allows clinicians to view a simulated, three-dimensional model of a patient’s coronary blood flow.
Jun 26, 2018 | Imaging
A novel positron emission tomography (PET) radiotracer could improve upon current methods for identifying bacterial heart infections, according to a presentation at the annual meeting of the Society of Nuclear Medicine and Molecular Imaging in Philadelphia.
Imaging
Coronary artery bypass graft (CABG) surgery guided by fractional flow reserve (FFR) significantly reduced the incidence of death or myocardial infarction when compared to angiography-guided CABG, according to an observational study with an average follow-up of seven years.
Coronary Intervention & Surgery, Imaging
Jun 25, 2018 | Imaging
A deep-learning algorithm can automatically calculate left ventricular ejection fraction (LVEF) with less variability than cardiologists, according to a study presented June 25 at the American Society of Echocardiography’s annual scientific sessions.
Imaging, Conferences
The incidence of abdominal aortic aneurysm (AAA) has dropped by more than 70 percent in the past few decades, ultimately shifting the benefit-to-harm balance of screening for the disease, researchers wrote in The Lancet.
Vascular & Endovascular, Imaging
Jun 15, 2018 | Imaging
The “often overlooked” strategy of stress echocardiography outperformed coronary CT angiography (CTA) in a randomized trial of low to intermediate-risk patients with acute chest pain, resulting in fewer hospitalizations, shorter stays and similar midrange safety outcomes.
Imaging, Acute Coronary Syndrome
Jun 14, 2018 | Imaging
Machine learning models using echocardiographic data and variables from the electronic health record (EHR) can significantly improve mortality predictions compared to traditional risk scores, researchers reported in JACC: Cardiovascular Imaging.
Imaging