Caudal epidural steroid injection (ESI ... In this study of patients with low back pain and sciatica, Yoon and colleagues used color Doppler ultrasonography guidance to position the needle ...

The yellow arrow indicates the caudal artery along the tail. b: Comparison of fluorescence images after CA or tail vein (IV) injection of near-infrared II nanoparticles. c: Bioluminescence images ...