High-resolution MRI demonstrates detailed anatomy of the axillary brachial plexus. A pilot study

Acta Anaesthesiologica Scandinavica
T KjelstrupP K Hol

Abstract

Axillary block is the most commonly performed brachial plexus block and may be guided by nerve stimulation or ultrasound. Magnetic resonance imaging (MRI) has proven to be beneficial in presenting anatomy of interest for regional anaesthesia and in demonstrating spread of local anaesthetic. The aim of this pilot study was to demonstrate the anatomy as shown by MRI of the brachial plexus in the axillary region. Nine volunteers and nine patients were examined in a 3.0 Tesla MR. The patients had two different brachial plexus blocks. Subsequently, they were scanned by MRI and finally tested clinically for block efficacy before operation. Axial images, with and without local anaesthetics injected, were viewed in a sequence loop to identify the anatomy. With the high-resolution MRI, we obtained images of good quality, and cords and all terminal nerves could be identified. When local anaesthetics are injected, neurovascular structures are displaced, and the vein is compressed. Viewing the images in a sequence loop facilitates identification of the different nerves and has high instructive value (links S1-3 to these loops are enclosed). Clinical high-field 3.0 Tesla MRI scanner gives good visualization of brachial plexus in the axilla....Continue Reading

Associated Clinical Trials

Sep 29, 2011·Trygve Kjelstrup, MD

References

Mar 1, 1993·Anesthesia and Analgesia·D L BrownL D Bridenbaugh
Mar 3, 2007·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Vincent W S ChanSherif Abbas
Aug 7, 2010·Current Opinion in Anaesthesiology·Jeff GadsdenAdmir Hadzic

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Citations

Apr 1, 2014·Journal of Computer Assisted Tomography·Wen-Chang ChenChih-Feng Chen
Sep 13, 2014·Journal of Neurosurgery. Pediatrics·Jacob Rahul JosephLynda J S Yang
Aug 25, 2015·Surgical and Radiologic Anatomy : SRA·Joris Van de VeldeTom Van Hoof
Jan 14, 2016·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Matthew C OliffCatherine S Giess
Oct 22, 2013·International Journal of Radiation Oncology, Biology, Physics·Joris Van de VeldeTom Van Hoof
Nov 21, 2015·Journal of Clinical Monitoring and Computing·Trygve KjelstrupPer K Hol
Jul 23, 2014·European Journal of Anaesthesiology·Trygve KjelstrupØivind Klaastad

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