US Alexandrov 1

Question 1

What is the level of the carotid bifurcation

Answer 1

4th cervical vertebrae

Question 2

Where does vertebral artery enter vertebrae?

Answer 2

at c6

Question 3

Frequency range of transducer for neck vs intracranial imaging?

Answer 3

Neck - 4-12 MHz

Intracranial 2-4 MHz

Question 4

Where do you begin the carotid study in transverse plane

Answer 4

anterior to SCM

Question 5

Go through main starting points steps of insonating carotid artery

Answer 5

1. Transverse -start anterior to SCM
2. Longitudinal - start anterior to SCM
3. Color flow doppler - return to longitudinal image of proximal carotid artery

Question 6

Steps of doppler insonation of cervical ICA

Answer 6

1. Longitudinal prox ICA w/ color flow on
2. Adjust scale first to minimize aliasing
3. Adjust gain and power to minimize bleeding

Question 7

Where is starting gate and power?

Answer 7

Starting gate 10-15mm, power 100%