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. 2018 Dec 31;12:171–177. doi: 10.2147/JPR.S181915

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(A) Oblique view for C6 ultrasound-guided CTFESI under fluoroscopy; (B), anteroposterior view for C6 ultrasound-guided CTFESI under fluoroscopy; (C), oblique view for C6 ultrasound-guided SNR under fluoroscopy; (D): anteroposterior view for C6 ultrasound-guided SNR under fluoroscopy. Yellow dotted lines, contrast medium surrounding the spinal nerve; red dotted lines, contrast medium in epidural space.

Abbreviation: CTFESI, cervical transforaminal epidural steroid injection; SNR, selective nerve root.