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Updated: Dec 9, 2025

Ultrasonographic Assessment During Cardiopulmonary Resuscitation
Published on: October 24, 2020
Use of Contrast-Enhanced Ultrasound to Determine Thoracic Duct Patency
Erika J Mejia1, Hansel J Otero1, Christopher L Smith1
1Cardiac Center, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, 3401 Civic Center Boulevard Philadelphia, PA, 19104.
Abstract:
The aim of this study was to determine the feasibility of using contrast-enhanced ultrasound (CEUS) evaluation to determine thoracic duct (TD) outlet patency. Nine patients referred for lymphatic imaging and intervention underwent percutaneous intranodal ultrasound contrast injection and conventional lymphangiography (CL). Eight of 9 patients had a patent TD by CEUS and CL. One patient did not have a patent TD. There was 100% agreement between CEUS and CL. These results suggest that CEUS is an imaging modality that might be as accurate as CL in determining TD patency.
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