Getting the most from ultrasound guidance for CVC insertion.

Ultrasound is an imaging technique that uses ultra-high frequency sound waves. The interaction of the sound waves with body tissue enables an image to be produced. Following guidance from the National Institute for Health and Care Excellence (NICE) (2002), the use of two-dimensional ultrasound imaging for central venous catheter (CVC) insertion has increased. Ultrasound provides the nurse with visualisation of the target vein as well as any other surrounding structures. It also demonstrates any variation in anatomy that the patient may have. Increased first-time puncture rates and decreased complications are among the benefits of ultrasound use for CVC placement described in the literature. However, NICE (2002) guidance recommended that education and training be sought by those using this technology. The aim of this article, therefore, is to provide useful information regarding ultrasound-guided venous access and to describe some techniques to improve image quality.