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Pulmonary Embolism and Pulmonary Arterial Hypertension: Concepts and Controversies


08:30 AM – 10:00 AM


Lacey Washington, MD, Sanjeev Bhalla, MD, Diana Litmanovich, MD, and Aletta Ann Frazier, MD

Code: RC601


This session has four sections. First is Acute Pulmonary Embolism, which highlights population trends in the evaluation of patients with suspected PE. This section discusses the prevalence and clinical significance of subsegmental PE. It also presents evidence-based guidelines for the imaging evaluation of patients with suspected pulmonary embolism. The second section is Chronic Pulmonary Embolism. It reviews the clinical condition of chronic pulmonary embolism (PE), and the diagnosis of chronic PE. Attendees will understand how findings can direct patient management in treating pulmonary hypertension associated with chronic PE.

Third section is Dose Concerns and Reduction Strategies. It discusses general aspects of radiation dose in CT and radiation risk. It also summarizes the available data on reducing radiation dose exposure in routine CT pulmonary embolism protocols. This section also discusses the effect of changing parameters on image quality. It also highlights specific aspects of dose reduction in special categories of patients: pregnant patients and pediatric population. The section summarizes the results of previous radiation dose reduction studies, and reviews potential guidelines for dose reduction in clinical practice. The fourth section is Pulmonary Arterial Hypertension. It reviews the pathophysiologic mechanisms underlying PAH. It will also illustrate the histologic and gross anatomic changes of PAH with radiologic-pathologic correlation. This section highlights the spectrum of diseases associated with PAH and potentially distinctive radiologic features.


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