Peripheral Nerve Block - Radial Region

RADIAL NERVE IN THE UPPER ARM

 

Anatomical Correlation

 

Arrow = deep brachial artery and superficial veins of upper limb

 

Arrowhead = radial nerve

 

H = humerus

Arrow = deep brachial artery and superficial veins of upper limb

Arrowhead = radial nerve

 

B = brachialis muscle

 

H = humerus

A linear 10 MHz probe over the upper 1/3 of the arm to visualize the radial nerve as it crosses the humeral shaft
A. Transverse scan showing the radial nerve (yellow arrowhead) and the deep brachial artery (red arrowhead).

 

H = humerus

B. The use of Color Power Doppler to identify the deep brachial artery lateral to the radial nerve (yellow arrowhead).

 

H = humerus

 

RADIAL NERVE ABOVE THE ELBOW (4-5 CM ABOVE)

 

Anatomical Correlation

 

The solitary radial nerve appears predominantly hyperechoic at this region.

 

B = brachialis muscle

 

BR = brachioradialis muscle

 

H = humerus

 

R = radial nerve

B = brachialis muscle

 

BR = brachioradialis muscle

 

Box = scan area

 

H = humerus

 

R = radial nerve

 

RADIAL NERVE AT THE ELBOW

 

Anatomical Correlation

 

The radial nerve (arrowheads) becomes elliptical and linear as it divides into the superficial and deep branches.
Arrowheads = branching of radial nerve

 

BR = brachioradialis muscle

 

H = humerus

 

RADIAL NERVE IMMEDIATELY BELOW THE ELBOW

 

The radial nerve (arrowheads) is visualized below the elbow lying immediately next to the radius bone.

 

VIDEO GALLERY

 

Radial Nerve Block (Out of Plane Approach) in Mid-Arm