Thromb Haemost 2017; 117(11): 2146-2155
DOI: 10.1160/TH17-05-0332
New Technologies, Diagnostic Tools and Drugs
Schattauer GmbH Stuttgart

Perivascular Perfusion on Contrast-Enhanced Ultrasound (CEUS) Is Associated with Inflammation in Patients with Acute Deep Vein Thrombosis

Mathias Kaspar
,
Stephan Imfeld
,
Sasan Partovi
,
Markus Aschwanden
,
Thomas Baldi
,
Alexander Dikkes
,
Deborah R. Vogt
,
Dimitrios A. Tsakiris
,
Daniel Staub
Further Information

Publication History

15 May 2017

08 July 2017

Publication Date:
30 November 2017 (online)

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Abstract

Background Inflammatory processes of the venous wall in acute deep vein thrombosis (DVT) play a role in thrombus formation and resolution. However, direct evaluation of the perivascular inflammation is currently not feasible.

Objective To assess perivascular perfusion in acute proximal DVT using contrast-enhanced ultrasound (CEUS) reflecting perivenous inflammation and its association with systemic inflammatory markers in a single-centre, prospective observational study.

Patients/Methods Twenty patients with proximal DVT underwent CEUS imaging in the thrombosed and contralateral popliteal vein at baseline and after 2 weeks and 3 months. Perfusion was quantified by measuring peak enhancement (PE) and wash-in rate (WiR) in a perivenous region after bolus injection of the contrast agent. High-sensitive C-reactive protein (hsCRP) and interleukin-6 (IL-6) were determined at the time of each CEUS imaging.

Results PE and WiR were significantly higher in the thrombosed compared with the unaffected leg at baseline (1,007 vs. 34 au and 103 vs. 4 au/s) and 2-week follow-up (903 vs. 35 au and 70 vs. 4 au/s). Compared with baseline, PE and WiR in the thrombosed leg significantly decreased to 217 au and 18 au/s at 3-month follow-up.

At baseline, hsCRP and IL-6 were elevated at 20.1 mg/mL and 8.2 pg/mL and decreased significantly to 2.8 mg/mL and 2.6 pg/mL at 2-week follow-up, remaining low after 3 months. There was a weak association between the level of inflammatory markers and the CEUS parameters at baseline on the thrombosed leg.

Conclusion Elevated perivascular perfusion assessed by CEUS imaging is associated with the inflammatory response in acute DVT.

Funding Resources

This investigator-initiated prospective study was supported by a research grant to D. S. from the Swiss National Science Foundation (PZ00P3_142419), the University of Basel, the University Hospital of Basel and the Swiss Society of Phlebology. D. S. has also received an unrestricted research grant from Bracco SA. 3D measurement system for oedema measurement was provided by Bauerfeind AG.