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(A) Right femoral nerve in cross section. The femoral nerve (arrow) at the level of the inguinal crease appears as a superficially located hyperechoic oval
structure lateral to the femoral artery and vein. The iliopsoas muscle is lateral and deep to the nerve, and the fascia iliaca covers the muscle and nerve
superficially, then passes beneath the femoral artery. Injection of anesthetic must be deep to the fascia iliaca to ensure a successful block. (B) Close-up of
the right femoral nerve in cross section. The fascia lata is seen as an echogenic horizontal band in the central near field in line with the upper border of the
anechoic femoral artery. The femoral nerve appears as a flattened hyperechoic structure lateral and somewhat inferior to the artery in the center of the
sonogram. The fascia iliaca (iliopectineal fascia) can be seen as a thin echogenic line located just above the femoral nerve, then continuing medially
Source: Chapter 22. Additional Ultrasound-Guided Procedures, Ma and Mateer's Emergency Ultrasound, 3e
beneath the femoral artery. A = femoral artery, V = femoral vein.
Citation: Ma O, Mateer JR, Reardon RF, Joing SA. Ma and Mateer's Emergency Ultrasound, 3e; 2014 Available at: http://mhmedical.com/
Accessed: May 06, 2017
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