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. 2023 May 15;13(7):4475–4492. doi: 10.21037/qims-22-1394

Figure 1.

Figure 1

Measurement of paraspinal muscle parameters. (A) Preoperative lumbar spine magnetic resonance imaging; (B) ImageJ software. The red region indicates intramuscular fat, soft tissue, and subcutaneous fat through the threshold technique. MF, multifidus; ES, erector spinae; PSE, paraspinal extensor muscle; PS, psoas major; VB, vertebral body; SF, subcutaneous fat.