PMC5899876_01
Ultrasound image showing subcutis, trapezius muscle, erector spinae muscle, transverse process of T7 (TP), needle path (in red), and spread of local anesthetic (LA).
CRIA2018-5492527.001.jpg
PMC5899876_01_CRIA2018-5492527.001.jpg
fig1
T7 transverse process was located just 3 cm laterally from the midline using a 15-6 MHz linear ultrasound probe (SonoSite, X-Porte, Bothell, Washington) oriented sagittally (Figure 1). The cross-sectional view of the transverse process was centered on the ultrasound screen and the overlying trapezius, and erector spinae muscles were identified.
PMC5899876_02
PMC5899876_03