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Updated: Jun 15, 2026

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
Published on: January 31, 2025
Practical knobology for ultrasound-guided regional anesthesia
Richard Brull1, Alan J R Macfarlane, Cyrus C H Tse
1Department of Anesthesia and Pain Management, Toronto Western Hospital, University Health Network, Ontario, Canada. richard.brull@uhn.on.ca
Abstract:
This article provides an instructive review of the essential functions universal to modern ultrasound machines in use for regional anesthesia practice. An understanding of machine knobology is integral to performing safe and successful ultrasound-guided regional anesthesia.
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