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Imaging: Imaging |

Can CT Attenuation (Hounsfield Unit) Differentiate Between Transudative or Exudative Pleural Effusions? A Controversial Question

Raminderjit Sekhon, MD; Zeron Ghazarian, MD; Tapan Pandya, MD; Michael Hanna, MD; Mourad Ismail, MD
Author and Funding Information

St. Joseph's Regional Medical Center, Paterson, NJ


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016;150(4_S):663A. doi:10.1016/j.chest.2016.08.757
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SESSION TITLE: Imaging

SESSION TYPE: Original Investigation Poster

PRESENTED ON: Wednesday, October 26, 2016 at 01:30 PM - 02:30 PM

PURPOSE: Rates of pleural effusion detection in the hospital setting have increased over the past decade with the use of more imaging modalities such as CT scans. Effusions are classified as exudative or transudative based on Modified Light’s criteria by analyzing the fluid obtained through thoracentesis which helps establish the need for further invasive measures such as tube thoracostomy placement. While Modified Light’s criteria have high specificity and sensitivity to determine effusion type, it requires an invasive procedure. Studies have shown mixed results regarding the utility of CT attenuation in addition to Modified Light’s criteria in identifying effusion type. The goal of our study is to identify if CT attenuation (Hounsfield unit) can help classify tranusdative effusions without the need for a thoracentesis to decrease the number of invasive procedures.

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