Three-dimensional ultrasound imaging.PURPOSE OF REVIEW

Three-dimensional ultrasound imaging
Several investigations have utilized 3-D ultrasound as a tool to study anatomical spatial relationships, evaluate local anesthetic spread, or optimize nerve block needle or catheter positioning.  At present, there are limited data regarding the use of 3-D ultrasound and a complete lack of randomized controlled clinical trials evaluating the potential benefits of real-time 3-D (4-D) ultrasound. 
3-D ultrasound
This article reviewed the current literature regarding the use of 3-D and 4-D ultrasound technology in a regional anesthesia setting.


 There are only a few case reports available demonstrating the feasibility of 4-D ultrasound for nerve block performance.



4-D ultrasound