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. 2020 Mar 7;2020:1035182. doi: 10.1155/2020/1035182

Figure 1.

Figure 1

(a) The QL3 block. (a) The ultrasound image before injection. Arrow indicates needle trajectory and injection point between QLM (quadratus lumborum muscle) and PM (psoas major muscles). ESM: erector spinae muscle; L4 TP: L4 transverse process; PC: peritoneal cavity. (b) The QL3 block. Figure 1(b) shows the ultrasound image after injection. Arrow indicates needle trajectory and injection point between QLM (quadratus lumborum muscle) and PM (psoas major muscles). ESM: erector spinae muscle; L4 TP: L4 transverse process; PC: peritoneal cavity. LA: local anesthetics.