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Which slice thickness would be most suitable for a soft-tissue neck study?

For which of the following studies would there be slices from just below the aortic arch to just above the frontal sinus?

During CT scanning of the head, the gantry should be angled ____.

What is a typical injection protocol for a routine exam of the brain?

Which anatomic structure is indicated by the number 3 in the image below?

Why is the supraorbital meatal line the preferred method for determining the slice angle on a routine CT scan of the brain?

What anatomical structure is indicated by the number 3 shown in the CT image below?

What is a typical injection protocol for a CT soft-tissue neck?

Which anatomic structure is indicated by the number 5 in the image below?

Which slice thickness would be most suitable for a CTA of the carotids and Circle of Willis?