Pilot Programs in Medical Research

Longtime American Board of Radiology (ABR) Executive Director Dr. Valerie Jackson said she will retire by July 1, 2020.

Valerie P. Jackson, MD, was named president of the Radiological Society of North America (RSNA) Board of Directors, Wednesday, Nov. 28, at its annual meeting in Chicago.

Updating the imaging standard of care to include artificial intelligence as a second reader is one solution that takes some burden off individual physicians.

The tool signicantly helped inexperienced rads and rivaled cardiovascular imaging experts at spotting obstructive CAD.

Coronary artery disease (CAD) is a significant cause of morbidity and mortality. Evaluation of obstructive CAD involves quantifying arterial stenoses to determine whether significant narrowing is present. Lesions with stenosis more than 50 - 70% in diameter accompanied by symptoms are generally considered significant. It has been suggested that noninvasive measurement of fractional flow reserve (FFR) after a positive coronary computed tomography angiography (CCTA) may help rule out CAD and avoid invasive coronary angiography (ICA) in individuals with a low clinical likelihood of significant CAD.

### Learning objectives Coronary computed tomographic angiography (CTA) is now established as a clinically valuable non-invasive anatomical test for the detection and exclusion of significant coronary disease. A number of prospective multicentre trials have shown coronary CTA to be an ideal test for the exclusion and detection of coronary disease using invasive angiography as the reference.1–3 Despite this, owing to its relatively low positive predictive value of 48% and inability to determine functional significance,1 its use in international guidelines has generally been restricted to patients with chest pain at a low-intermediate risk of having coronary artery disease (CAD).4 For patients at an intermediate risk of CAD, functional testing is generally indicated, and for high-risk patients, invasive coronary angiography (ICA) remains the recommended diagnostic test. Although this strategy is designed to determine whether a patient’s symptoms are attributable to CAD, and specifically myocardial ischaemia, recent studies indicate that this approach has important flaws. In a study of almost 400 000 patients, Patel et al showed that up to 62% of the patients who underwent ICA in the USA were subsequently found to have no significant obstructive disease. Furthermore, of those patients with a positive stress test, approximately two-thirds had no obstructive disease and, conversely, 28% of the patients with a negative stress …

Correspondence to: Julinda Mehilli, MD, Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistr. 15, Munich 81377. Email

Background: Myocardial perfusion reflects the macro- and microvascular coronary circulation. Recent quantitation developments using cardiovascular magnetic resonance perfusion permit automated measur

Background: Myocardial perfusion reflects the macro- and microvascular coronary circulation. Recent quantitation developments using cardiovascular magnetic resonance perfusion permit automated measur

Background and Purpose— Numerous imaging techniques have been developed and applied to evaluate brain hemodynamics. Among these are positron emission tomography, single photon emission computed tomog