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Imaging

 - MRI

Cardiac MR (CMR) can help guide therapy in patients with recurrent pericarditis. One center reported patients who underwent imaging received a smaller total dose of steroids and experienced fewer recurrences than patients who did not get scans.

 - Caution Radiation

Some patients may have greater risk of DNA damage due to radiation exposure from SPECT myocardial perfusion imaging, even though the radiation dose is low, according to a study published Jan. 21 in Circulation: Cardiovascular Imaging.

 - Yellow Pills

Use of short-term, high-dose atorvastatin may help patients avoid contrast-induced kidney injury, according to a meta-analysis published in the February issue of The Journal of Clinical Pharmacology.

 - heart_drawing

An automated ultrasound device for imaging peripheral arteries may provide a way to identify people with subclinical atherosclerotic plaque in populations not well served by risk-factor tools, according to a study published Jan. 12 in Global Heart.

 - plaque

Coronary CT angiography (CCTA) may shed some light on lesions that cause ischemia, based on a study that compared atherosclerotic plaque characteristics by CCTA with lesion-specific ischemia by fractional flow reserve.

 

More Stories

Asymptomatic, moderate regurgitation may not warrant annual echo exam

Frequent echocardiography may not be needed for patients with asymptomatic, moderate aortic or mitral regurgitation, according to a study published online Dec. 10 in the Journal of the American College of Cardiology: Cardiovascular Imaging.

CT angiography helps screen asymptomatic patients

Coronary CT angiography (CCTA) may be justified in asymptomatic patients with a high risk of coronary artery disease (CAD) and might even oust coronary calcium scoring as the best option for screening these patients.

Prognostic value in NIRS? There's a glimmer

Near-infrared spectroscopy (NIRS) may help cardiologists identify at-risk patients with coronary artery disease—one day, that is. In a single-center study, NIRS showed potential as a tool with prognostic value.

Cabin protects head, feet from radiation during device extractions

A cabin that shields operators during cardiac device extractions drastically cut radiation to their heads and feet without requiring heavy lead aprons, according to a study published in the December issue of the Canadian Journal of Cardiology.

CT-based tool finds subgroups with increased risk of secondary stroke

Imaging with CT may help provide clinicians with a clearer picture of a patient’s secondary stroke risk, a group of Canadian researchers found in a study of patients with a transit ischemic attack or a non-disabling stroke. 

MRI safe for some ICD patients with left ventricular leads

With the right setting and monitoring, imaging via MRI is safe for patients with implantable cardioverter-defibrillators (ICD), according to a study published online Nov. 26 in Heart Rhythm.

Quantifying cardiac PET: MFR may be more consistent than MBF

There are a few different quantitative techniques used to measure myocardial blood flow (MBF) and myocardial flow reserve (MFR), both of which have been shown to provide useful information in managing cardiovascular disease. However, MFR measurements appear to be less affected by variables of quantitation when using different arterial input functions and extraction models, according to a comparison study published today in the Journal of Nuclear Medicine.

FDG uptake offers clearer picture of high-risk carotid plaque

Swiss researchers assessing carotid plaque stenoses using FDG-PET found the procedure accurate in detecting high-risk plaques. They also noted a strong correlation between uptake values of FDG and the presence of microembolic signals detected via transcranial Doppler.

Lower scan time, dose in SPECT MPI

A new SPECT protocol allows researchers to not only cut scan times down to a quarter of the average time, but it could also be used to lower dose, according to a study published Nov. 20 in the Journal of Nuclear Medicine.

Cardiac PET/CT: Measuring calcification via low-dose CT

Low-dose CT has become a mainstay for PET attenuation correction, but why not take it a step further by quantifying coronary artery calcium without adding any extra dose, according to an Ottawa Heart Institute study published ahead of print Nov. 20 in the Journal of Nuclear Cardiology.

Cardiac screening of patients with diabetes doesn’t budge outcomes

Routinely screening patients with diabetes for asymptomatic coronary artery disease (CAD) failed to improve outcomes, results published online Nov. 17 in JAMA showed.

FDG PET reigns for diagnosing infected prosthetic heart valves

Infections related to heart valve prosthesis are usually diagnosed with echocardiography, but it can miss key areas of infection. It is here that FDG PET or leukocute scintigraphy can step in, but a recent comparison study of the two nuclear medicine procedures published Nov. 13 in the Journal of Nuclear Medicine shows that FDG PET may be the best option.

Recommendations spell out optimal use for left ventriculography

Sometimes, as with left ventriculography, old techniques may lose prevalence but not relevance. This was the heart of a consensus statement published online Nov. 4 in Catheterization and Cardiovascular Interventions.

Dextran subs for contrast in OCT with similar results

Dextran offers an inexpensive and possibly safe alternative to standard contrast dyes used in coronary optical coherence tomography (OCT) imaging, according to a feasibility study published in the Nov. 1 issue of Catheterization and Coronary Interventions.

CT angiography offers best value for detecting brain aneurysms

CT angiography ousted digital subtraction angiography as the most cost-effective modality for diagnosing certain bleeding strokes in an analysis that took into account the prowess of modern scanners. 

Mind boggling: Brain imaging reveals MI, stroke risks

It's not fortune telling, although the signs are clear: Early brain imaging helps identify, prevent and treat patents at increased risk for heart attack or stroke. In a meta-analysis study, early brain imaging scans revealed changes to brain structure and function, acting as warning signs of cardiovascular and cerebrovascular events to come.

Delayed CT angiography boosts imaging biomarker’s sensitivity

Adding a delayed CT angiography acquisition to an imaging biomarker in patients with spontaneous intracerebral hemorrhage increased the ability to predict hematoma expansion and a poor outcome, according to results published online Oct. 9 in Stroke.

Molecular imaging of stroke

While CT and MR are still the mainstays of detecting ischemic stroke, several SPECT and PET imaging techniques have been developed and are on the way to add comprehensive clinical information in the case of cerebrovascular disease. With this in mind, hybrid imaging such as PET/MR could provide a best-possible map of variables involved in stroke, according to a review published Oct. 9 in the Journal of Nuclear Medicine.

FDA OK’s echo microbubble contrast agent

The FDA approved the microbubble contrast agent Lumason to be used for contrast-enhanced echocardiographic imaging.

MR perfusion looks even better for detecting CAD

Myocardial MR perfusion may deserve a place in clinical practice for assessing patients for coronary artery disease (CAD). Using a gold standard as reference, researchers gave MR perfusion’s diagnostic ability high marks.