November 2017 Br J Cardiol 2017;24:156–60 doi:10.5837/bjc.2017.031
Baltej S Pandher, Samuel D Cripps, Andrew Edwards, Nicholas Hollings, Robin van Lingen
Abstract
Introduction
Even with modern high spatial and temporal resolution scanners, image quality obtained during computed tomography (CT) coronary angiography (CTCA) remains highly dependent on stable, regular, low heart rates. To achieve this pre-scan oral and/or intravenous beta blockade is widely used. Anecdotal and published reports suggest a wide variation in the route of administration and quantities of beta blocker used, particularly the intravenous route.1-7 Doses used are commonly far in excess of that recommended by the British National Formulary (BNF)8 to achieve adequate heart rate reduction. This study examines the current CTCA-relate
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