There are multiple definitions:

1. Doppler ultrasound(English)

   • Doppler technique, Ultrasound, Medical imaging

2. duplex ultrasound scanning(English)

   • noninvasive and less expensive imaging modality, able to detect endoleaks
   • DUSAS, CTA, EL, EVAR, CA
   • Ultrasound, Monitoring, Vascular disease
   • https://doi.org…003319709348296
   • https://doi.org…5214(98)70134-X