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Journal of Thoracic Imaging:
doi: 10.1097/RTI.0000000000000047
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Computed Tomography and Echocardiography in Patients With Acute Pulmonary Embolism: Part 1: Correlation of Findings of Right Ventricular Enlargement

Wake, Nicole MS*; Kumamaru, Kanako K. MD, PhD; George, Elizabeth MBBS; Bedayat, Arash MD†,‡; Ghosh, Nina MD*; Gonzalez Quesada, Carlos MD§; Rybicki, Frank J. MD, PhD, FAHA, FACR; Gerhard-Herman, Marie MD*

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Abstract

Purpose:

To evaluate the correlation between the computed tomography (CT)-derived right ventricle (RV) to left ventricle (LV) diameter ratio and the RV size determined by echocardiography in patients with acute pulmonary embolism.

Materials and Methods:

Consecutive CT pulmonary angiography examinations (August 2003 to May 2010) from a single, large, urban teaching hospital were retrospectively reviewed. For a cohort of 777 subjects who underwent echocardiography within 48 hours of the CT acquisition, the qualitative RV size (divided into 5 categories) extracted from the echocardiography report was correlated with the CT-derived RV/LV diameter ratio.

Results:

There was moderate correlation (Spearman rank correlation coefficient=0.54, P<0.001) between the CT-derived RV/LV ratio and the RV size as determined by echocardiography. The correlation coefficient and the concordance rate were inversely related to the time difference between the acquisitions of the 2 modalities.

Conclusions:

CT and echocardiography findings to assess the RV size after acute pulmonary embolism have moderate correlation.

Copyright © 2013 by Lippincott Williams & Wilkins

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