Every injection here is placed under ultrasound or fluoroscopy. Not as an upgrade, and not on request — as the default.
Why this is the thing to ask about
A nerve block is only as good as where the needle actually ends up. Placed by surface landmarks alone — feeling for a bony prominence and estimating the rest — the needle goes where the anatomy is usually found. Anatomy varies between people, and around the head and neck the structures you are trying to avoid are millimetres from the ones you are aiming at.
Image guidance replaces the estimate with a picture. It matters in three separate ways: the medication reaches the intended target, so the block is more likely to work; the vessels and nerves you are avoiding are visible, so it is safer; and when a guided block does not relieve the pain, that result is trustworthy. A failed landmark block tells you nothing — it may have missed. A failed guided block tells you the pain is coming from somewhere else, which is diagnostic information you can act on.
Ultrasound
Real-time imaging of soft tissue, with no radiation. It shows nerves, muscle planes and — critically — blood vessels, with live Doppler to confirm which is which. The needle is watched moving through the tissue as it advances.
This is the technique for the stellate ganglion block, where the target sits among the carotid, the jugular, the vertebral artery, the thyroid and the oesophagus; for occipital nerve blocks, where the occipital artery runs alongside the nerve; and for the superficial trigeminal branches.
Fluoroscopy
Live X-ray. Where the target is defined by bone rather than soft tissue, fluoroscopy shows the needle against the vertebral anatomy from multiple angles. Contrast is injected first and watched as it spreads: it confirms the medication will reach the target, and it reveals immediately if the needle has entered a blood vessel — which is the complication that matters most in the neck.
This is the technique for the atlanto-axial (C1–C2) injection, for cervical facet and medial branch work, and for deeper trigeminal approaches.
What this means for you
Practically: a procedure that takes a few minutes longer, and a result you can rely on either way. If you have had an injection elsewhere that did not help, it is worth finding out whether it was image guided. A repeat of the same block done properly is a different test.