Doppler ultrasound and contrast-enhanced ultrasound in detection of stent stenosis after iliac vein stenting

Abstract Background To compare the diagnostic accuracy of Doppler ultrasound (DUS) with contrast-enhanced (CEUS) for detection iliac vein stent stenosis using multidetector computed tomography venography (MDCTV) as reference method. Methods Patients obstructive disease treated nitinol stents (Smart Control, Cordis, USA) between January 2016 and December 2017 were consecutively included in this study. DUS, CEUS, MDCTV carried out all patients within one week each other at 1 year post stenting to investigate presence compression in-stent restenosis (ISR). Results The study 139 (87 females; mean age 58 ± 15 years). For detecting compression, kappa coefficient modality gray-scale imaging was 0.901, indicating very good agreement these two modalities. ISR detected 50, 61, 65 by MDCTV, respectively. DUS CEUS (kappa = 0.449) 0.516) had moderate diagnosis, while which 0.884) agreement. sensitivity specificity diagnosing 63.1% 90.8%, 87.8% 97.3%, Conclusions is probably superior terms follow-up stenosis.