Medical Imaging

Physicians utilize medical imaging to see inside the body to diagnose and treat patients. This includes computed tomography (CT), magnetic resonance imaging (MRI), X-ray, ultrasound, fluoroscopy, angiography,  and the nuclear imaging modalities of PET and SPECT. 

ASNC Releases Dose-Reduction Guidelines for Nuclear Cardiology

Technological improvements in image acquisition and software processing in nuclear cardiology should allow physicians to shave patient imaging times dramatically or cut radiation doses fourfold, according to a new preferred practice statement from the American Society of Nuclear Cardiology (ASNC).

Radiology: Decision support reins in CT pulmonary angiographic exams

Evidence-based decision support programs may be able to reduce the number of unnecessary CT pulmonary angiographic exams used to evaluate pulmonary emboli in the emergency department, according to a study published online Dec. 20 in Radiology.

HeartRhythm: Cost-effective ECG screening for athletes may be feasible

Implementing a widespread, cost-effective electrocardiographic screening program for young athletes could be feasible and potentially could help reduce the rate of sudden cardiac death, according to a study published in the October issue of HeartRhythm.

ASE: Are cardiovascular sonographers at high risk of radiation exposure?

There is growing concern among cardiac sonographers about the amount of radiation exposure they experience on the job and few say their workplace has a formal policy to address radiation safety for sonographers, according to a survey conducted by the American Society of Echocardiography.

Study: Buried data in ECGs predict risk of death after ACS

A multidisciplinary team of engineers and cardiologists reported that what appears to be noise on electrocardiograms (ECGs) contains useful information for estimating the risk of death for patients who experience acute coronary syndrome (ACS). In a study published in the Sept. 28 issue of Science Translational Medicine, the team proposed that sophisticated computational techniques applied to routinely collected ECG data could be integrated into clinical practice to provide more accurate risk stratification.

ACC: No pre-hospital ECG = 62% longer D2B times

NEW ORLEANS--For those with a suspected ST-elevation MI (STEMI), calling an ambulance as opposed to arriving at the hospital by other means, can fast-track access to care. Also, patients who have an electrocardiogram (ECG) in the ambulance en-route to the hospital receive first-line care in half the time, yet nearly half of patients elect not to take an ambulance and among those who do, many do not get an ECG, according to data from the ACTIVATE-SF registry presented April 2 at the American College of Cardiology (ACC) scientific sessions.

Will ECG Become Standard Screening Tool for Young Athletes?

The prevalence of sudden cardiac death (SCD) in young athletes is relatively low. The most common cause of SCD in this population is congenital cardiovascular disease, with hypertrophic cardiomyopathy being the most common cause. The American Heart Association calls for screening with physical history and exam, but others, notably in Europe, include a 12-lead ECG to the screening paradigm.

Study: ECG screening helps prevent SCD during sports

Sudden cardiac death (SCD) of a young athlete represents the first manifestation of cardiac disease in up to 80 percent of young athletes who remain asymptomatic before sudden cardiac arrest occurs, which explains the limited power of screening modalities based solely on history and physical exam, according to a paper in the April issue of European Journal of Cardiovascular Prevention & Rehabilitation.

Around the web

Several key trends were evident at the Radiological Society of North America 2024 meeting, including new CT and MR technology and evolving adoption of artificial intelligence.

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.