Cardiovascular Imaging

Patients with valvular heart disease were significantly less likely to receive transthoracic echocardiograms (TTEs) within guideline-recommended timeframes if they were women, black, older or used Medicaid insurance, according to a single-center study published in JACC: Cardiovascular 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.