To increase precision in X-ray assisted percutaneous biopsies and other similar needle procedures, Siemens is out with an innovative technology. Unveiled at the ongoing Medica 2008 in Düsseldorf, Germany, the iGuide CAPPA uses electromagnetic tracking and facilitates interventions such as precise and quick needle placements. Ideal for liver biopsies, vertebroplasties to stabilize fractured vertebras, or for cancer pain treatment, this system allows for precise and safe placement of electrodes or biopsy devices even in regions that are difficult to evaluate with conventional fluoroscopy. Such an improvised technology also helps to reduce the need for X-rays and radiation.

Medgadget reports ‘The principle is a simple one: prior to inserting the needle, the Artis zee C-arm generates a 3D soft tissue image of the anatomy to be treated, which is used for orientation by the physician. A sensor in the tip of the needle is tracked in an electromagnetic field created via a field generator. These data are transferred in real time to the iGuide CAPPA system which shows the position of the needle tip on a monitor and superimposes on the previously generated three-dimensional data set of the anatomy. This provides the physician with both the necessary anatomical information as well as the exact position of the needle, so he can safely perform the needle procedures.’

Such a faster and safer navigation will benefit the patient as well the physician.

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