Tatjana Gruber-Rouh, Presenter: Nothing to Disclose

Boris Schulz MD, Abstract Co-Author: Nothing to Disclose

Nagy Naguib Naeem Naguib MD, MSc, Abstract Co-Author: Nothing to Disclose

Katrin Eichler MD, Abstract Co-Author: Nothing to Disclose

Thomas Josef Vogl MD, PhD, Abstract Co-Author: Nothing to Disclose

Julian Lukas Wichmann MD, Abstract Co-Author: Nothing to Disclose

Martin Beeres MD, Abstract Co-Author: Nothing to Disclose

Stefan Zangos MD, Abstract Co-Author: Nothing to Disclose

To analyse the radiation dose, accuracy and speed of needle interventions using a laser navigation system (LNS) compared with conventional method (control group) in the first study with patients

In the prospective randomized comparison study 58 patients (19 w: 39m; mean age, 62.9 years; range, 39-87 years) were punctured either with LNS (n=29) or with conventional method with a mark of the puncture site using a pen (n=29). In the LNS method the injection site has been marked with laser without taking X-ray images at the mark. The needle intervention of thorax and abdomen was respectively performed in 30 and in 28 patients. Fifteen patients got drainage, 43 patients had a needle biopsy of tumors. Radiation dose and time of the procedures were analysed.

All interventions could be performed successfully. Mean target access path within the patients in LNS-group was 6.0 cm (min 3.0cm, max 10.1cm) und in conventional group 6.0 cm (min 1.0 cm, max 10.3 cm), time duration of complete intervention in LNS-group was 28:00 min (min 14:00min, max 57:00min) and in control-group was 29:09 min (min 12:00min, max 53:00min). The radiation dose (DLP) of intervention scan of LNS-group was 42.3 mGycm (min 10 mGycm, max 125. mGycm), and of control-group 59.7 mGycm (min 25 mGycm, max 176.42 mGycm).

When using the LNS in an intervention suite, faster needle-based interventional punctures are possible with a low dose.  

When using the LNS in an intervention suite, faster needle-based interventional punctures are possible with a low dose.  

Gruber-Rouh, T, Schulz, B, Naguib, N, Eichler, K, Vogl, T, Wichmann, J, Beeres, M, Zangos, S, Radiation Dose, Accuracy and Speed of Needle Interventions Using a Laser Navigation System (LNS) Compared with Conventional Method.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14007749.html