The Normal Chest X-Ray: Reading Like the Pros
The keys to reading x-rays well are a good understanding of normal anatomy and an orderly search pattern. This chapter reacquaints you with the normal anatomy and helps you develop…
Patterns of Lung Disease
We have already seen how disease can consolidate or collapse a segment or lobe. We now look at other patterns of diffuse and focal lung disease. The lung reacts to…
Lobar Anatomy
A “fingertip” knowledge of lobar and segmental anatomy is indispensable for understanding patterns of lung collapse and patterns of lung disease. Some diseases have lobar or segmental distributions; others do…
The Silhouette Sign
If part of the lung is radiodense (alveolar pattern, consolidated, water density, airless), it can affect our ability to see adjacent structures. We can use these changes to help us…
The Radiographic Examination: The Basics
The chest x-ray and computed tomography (CT) are part of every physician’s practice. You should have a basic understanding of the anatomy and pathologic findings visible on these images. In…
Cross-Sectional Imaging Techniques
Three relatively recent imaging techniques, computed tomography (CT), ultrasound (US), and magnetic resonance imaging (MRI), have greatly improved thoracic imaging. In all conventional x-ray techniques, the x-ray beam passes through…
Ablation of Scar-Related Ventricular Tachycardia
Ablation of Scar-Related Ventricular Tachycardia Introduction In addition to the implantable cardioverter-defibrillator, catheter ablation plays an important role in the treatment of patients with scar-related ventricular tachycardia (VT). The purpose…
Unusual Electrophysiologic Phenomena
Unusual Electrophysiologic Phenomena Introduction Electrophysiology has many peculiar arrhythmias and patterns of conduction. One of them is the unexpected conduction of a premature impulse. This is manifested as either the…
Idiopathic Ventricular Tachycardia and Fibrillation
Idiopathic Ventricular Tachycardia and Fibrillation Introduction Idiopathic ventricular tachycardia (VT) and ventricular fibrillation (VF) can occur in the absence of structural heart disease. Two anatomic sites showing a predilection for…
Wide Complex Tachycardias
Wide Complex Tachycardias Introduction The major differential diagnoses of a regular wide complex tachycardia (WCT) are 1) ventricular tachycardia (VT), 2) supraventricular tachycardia (SVT) with aberration or bundle branch block…
