<unk>  is an ultrasound-based diagnostic imaging technique to evaluate structural details of the<unk>  arteries.<unk>  ultrasound is used to diagnose<unk>  artery stenosis (CAS) and can assess atherosclerotic plaque morphology and characteristics.<unk>  duplex and contrast-enhanced ultrasound are two of the most common imaging techniques used to evaluate<unk>  artery disease.
Carotid ultrasonography
Acoustic angiography
Vertebral artery test
Retinal vessel analysis
Intracoronary optical coherence tomography
Sphygmograph
Transcranial pulsed ultrasound
Digital variance angiography