Sara Majewski MD, Presenter: Nothing to Disclose

Mark J. Adams MD, MBA, Abstract Co-Author: Nothing to Disclose

John C. Wandtke MD, Abstract Co-Author: Nothing to Disclose

1-The typical radiographic and CT patterns of cardiogenic edema and non-cardiogenic edema will be illustrated. 2-The imaging features most useful in differentiating these patterns will be emphasized. 3-The pathophysiologic mechanisms producing both classic and rare presentations of pulmonary edema will be explained.

1-The major pathophysiologic mechanisms of edema formation, including increased capillary hydrostatic pressure gradient, decreased capillary osmotic pressure gradient and increased capillary permeability will be illustrated. 2- Key imaging features will be demonstrated on plain radiograph and CT for numerous examples. 3D CT imaging will be presented to enhance understanding of lung edema. 3-The utility of clinical history will be discussed. 4- Several common pitfalls will be shown.

1-Cardiogenic edema patterns include: interstital reticular pattern, peribronchial cuffing, subpleural edema, ground-glass opacities, widening of the vascular pedicle, pleural effusions, increased incidence of septal lines and central or bat-wing distribution. 2-Non-cardiogenic pulmonary edema patterns include peripheral or patchy distribution and absence of vascular overload signs.3-Chest imaging is vital in managing pulmonary edema, especially in combination with clinical data.

Majewski, S, Adams, M, Wandtke, J, Cardiogenic versus Noncardiogenic Pulmonary Edema: Pathophysiology, Patterns of Appearance, and Pitfalls.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5001960.html