By Dr NG Boyle & Dr DH Do


Over 1 million pacemakers and approximately 325,000 ICDs were implanted worldwide in 2009, and this number continues to rise annually [1]. It is likely that over 50% of patients
with a cardiac implanted electronic device (CIED) will have a clinical requirement for magnetic resonance imaging(MRI) following device implantation [2].

By Christan Santos, Ami Grek, Diane McLaughlin & Dr Jose L. Diaz-Gomez

In the United States, ultrasound examinations can be carried out by non-medically qualified personnel such as nurse practitioners and physisican assistants, collectively known
as Advanced Practice Providers (APPs).

This article summarizes a recently published study describing a training curriculum on Focussed Transthoracic Echocardiography (FoTE) and created for critical care APPs. It is shown that, with training, APP’s can successfully achieve echocardiogram images equivalent to their physician counterparts.

Invasive coronary angiography (ICA) is considered the gold standard for determining the percent of stenosis due to plaque in a coronary artery. However, the degree of stenosis on ICA is not always an accurate predictor of heart attack risk because it gives no information on perfusion. Cardiac hybrid imaging combining coronary CT angiography (CCTA) and SPECT myocardial perfusion imaging (MPI) has shown promise to address this issue but so far studies have been limited to short-term observations. This article summarizes the result of a recent study of the long-term prognostic value of hybrid CCTA - SPECT MPI.

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By Dr N Saltybaeva & Prof. H Alkadhi

Automatic tube current modulation (TCM) is an important method for the reduction of the radiation dose to which the patient is exposed in CT examinations, while still maintaining
image quality. Optimal implementation of TCM relies on accurate estimates of patient size as derived from projection localizer radiographs, which however can be significantly affected by non-optimal positioning, or off-centering, of the patient.

By Dr S. Morozov, Dr E Guseva, Dr N Ledikhova, Dr A Vladzymyrskyy & Dr D Safronov

Peer-review in radiology

Currently, the increasing requirement of quality control in modern radiology means that this vital aspect of the profession is becoming ever-more time-consuming and expensive. Peer review is a widely accepted approach that enables quality measurements to be carried out in routine practice, with the goal of improving overall performance through the recognition of initially unnoticed findings in diagnostic studies and the identification of appropriate corrective measures. In fact, peer review is an obligatory component of many radiological services.

The American Dental Association has reported that 100 million amalgam filling procedures are performed every year in the United States. However, since 2008, the use of amalgam fillings has been forbidden or restricted in Sweden, Norway, Denmark, and Germany. In addition, the European Parliament has adopted a ban on the use of amalgam in clinical practice for children younger than 15. Nevertheless, the use of dental amalgam fillings remains popular despite the controversy surrounding its potential effects on human health.

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