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The Use of Magnetic Resonance Imaging to Evaluate the Accuracy of a Handheld Ultrasound Machine in Localizing the Sciatic Nerve in the Popliteal Fossa
- Article from:
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Regional Anesthesia and Pain Medicine
- Article date:
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September 1, 2004
- Author:
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Copyright informationCopyright Churchill Livingstone Inc., Medical Publishers Sep/Oct 2004. Provided by ProQuest LLC. (Hide copyright information)
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Background and Objective: Ultrasound has become an increasingly popular modality in facilitating the performance of peripheral nerve blocks. There is a paucity of data describing techniques of ultrasound-guided sciatic nerve blocks. By using magnetic resonance imaging (MRI) as a gold standard, the objective of this study was to describe the ability of a handheld ultrasound machine to accurately locate the sciatic nerve.
Methods: Ten patients were prospectively enrolled and placed in the prone position. By using a 4- to 7-MHz ultrasound transducer, the sciatic nerve was visualized in short axis between 5 to 10 cm above the popliteal crease. The distance from the skin to the nerve was ...