A question-by-question guide that defines vertebral artery hypoplasia on ultrasound, separates it from stenosis and atresia, gives the diameter and flow criteria used in practice, covers the left versus right variants, and states when it actually matters clinically - every answer closing on a practical takeaway tied to accredited vascular ultrasound training.

A comparison-led guide that sets the world's carotid stenosis grading systems (NASCET, ECST, and the different PSV/ICA-CCA ratio thresholds labs rely on) side by side, then shows why a multi-parameter reading - including contralateral disease and arrhythmia - gives the most reliable result, closing with how the Carotid and Vertebral Arteries master course teaches the full assessment.

A myth-busting clinical FAQ for vascular sonographers: what a triphasic waveform really indicates, why location and lesion length matter, how short stenoses and collaterals preserve distal waveforms, why B-mode/colour Doppler/PSV/PSV ratio/spectral broadening and pre-, intra- and post-stenotic haemodynamics must be read together, why absolute PSV alone cannot grade the 180/345 cm/s example as >75% stenosis, acknowledged variation in grading criteria, and a short practical scanning checklist.

Explore the world of carotid atherosclerotic plaques with ABC Vascular's latest eBook, "A Practical Guide on the Ultrasound Assessment of Carotid Atherosclerotic Plaques". This guide offers healthcare professionals a comprehensive understanding of carotid plaque ultrasound assessment and its role in cardiovascular risk management.