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Clinical Radiology
Volume 65, Issue 9
, Pages
677-684
, September 2010
Cardiac drugs used in cross-sectional cardiac imaging: what the radiologist needs to know
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(a) First-degree heart block. The PR interval is longer than 0.2
s. A QRS complex follows every P wave. (b) Second-degree heart block, Mobitz type 1. There is progressive lengthening of the PR interval(a) First-degree heart block. The PR interval is longer than 0.2
s. A QRS complex follows every P wave. (b) Second-degree heart block, Mobitz type 1. There is progressive lengthening of the PR interval until eventually a QRS is dropped. (c) Second-degree heart block, Mobitz type 2. The PR interval is uniform, but the QRS is intermittently dropped. (d) Third-degree heart block. The P waves are completely disassociated from the QRS complexes. All these ECG traces reprinted with permission by Remedica from Arrhythmia (Chapter 8) in E.A. Ashley and J. Niebauer, Editors, Cardiology Explained, © 2004.
PII: S0009-9260(10)00151-0
doi: 10.1016/j.crad.2010.04.002
© 2010 The Royal College of Radiologists. Published by Elsevier Inc. All rights reserved.
« Previous
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Clinical Radiology
Volume 65, Issue 9
, Pages
677-684
, September 2010
