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Fig. 3 | BMC Anesthesiology

Fig. 3

From: Preliminary study on the use of perfluoropropane contrast agent in monitoring drug diffusion during fascial plane blocks

Fig. 3

Before and after SNB procedure. A: Illustration of the sciatic nerve in a high-frequency ultrasound image, indicated by the red arrow. B: Illustration of the needle insertion in the plane, indicated by the red arrow pointing to the needle tip. C: Illustration of the ultrasound image after injecting perfluoropropane UCA, with the red arrow pointing to the hyperechoic band indicating the area of drug diffusion. D: Illustration of the ultrasound image after injecting saline, with the red arrow pointing to the hypoechoic area indicating the formation of a fluid-filled space after drug injection

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BMC Anesthesiology

ISSN: 1471-2253

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