Recently, ultrasonography (US) is an indispensible imaging technique in regional anesthesia practice. 
ultrasonography
Recently, ultrasonography (US) is an indispensible imaging technique in regional anesthesia practice.  With the guidance of US, various invasive interventions in chronic pain pathologies of the musculoskeletal system, peripheral and neuroaxial pathologies has become possible.  Besides these the US also protects the team from ionic radiation that one encounters when using flouroscopy or computed tomography.  Latest publications in this field show that applicability of US in chronic pain syndromes is rapidly expanding with a good future.  The additional equipment (echogenic needles, 3-D US etc.) will also expand its applications in algology practice.  This review highlights different applications of US in chronic pain conditions.
US
Besides these the US also protects the team from ionic radiation that one encounters when using flouroscopy or computed tomography. 
flouroscopy
Besides these the US also protects the team from ionic radiation that one encounters when using flouroscopy or computed tomography. 
computed tomography