Abstract
Nerve blocks are an attractive interventional therapy in pain medicine. Several image guidance methods are available to secure the safety, accuracy, and selectivity of the nerve block. Computed tomography (CT) guidance provides a clear view of the vital viscera and vessels that should be avoided by the needle, and accurate placement of the needle tip before neuro-destructive procedures. A recent advance in CT technology is multi-slice CT fluoroscopy, which allows for rapid and easy correction of needle tip placement during insertion. To reduce the radiation dose for both patients and staff, the lowest radiation setting, intermittent quick-check fluoroscopy, and shortening of the planning scan should be used. Preliminary CT scanning with excellent spatial resolution may facilitate the application of CT fluoroscopic guidance to various types of nerve blocks. Here we review celiac plexus and splanchnic nerve blocks, trigeminal nerve block, neurolytic sympathectomy, and spinal intervention performed under CT guidance. Additional large-scale studies are needed to optimize the use of image guidance, especially CT fluoroscopy guidance, for nerve blocks.
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Koizuka, S., Nakajima, K. & Mieda, R. CT-guided nerve block: a review of the features of CT fluoroscopic guidance for nerve blocks. J Anesth 28, 94–101 (2014). https://doi.org/10.1007/s00540-013-1675-8
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DOI: https://doi.org/10.1007/s00540-013-1675-8