Fig. 1From: Enhancing diagnosis and treatment of superior cluneal nerve entrapment: cadaveric, clinical, and ultrasonographic insightsFlow diagram of the cadaveric study (track 1), human volunteer study (track 2) and clinical trial (track 3) of ultrasound (US) guided injection for the superior cluneal nerves (SCN). PSIS, posterior superior iliac spine; CSA, cross-sectional area; PTT, pain pressure threshold; VAS, visual analogue scale of pain; ODI, Oswestry Disability IndexBack to article page