CT-GUIDED INTERVENTION BY ON-TARGET LASER GUIDANCE

Purpose: The present study evaluates the use of a laser guidance syste m far CT-guided intervention, Material and methods: 94 cases of diagno stic biopsies and lumbar sympathectomies (54 cases with laser guidance system and 40 without) were compared. Results: Using the laser guidan ce system, the number of control scans decreased by 30 to 50%, and nec essary corrections of needle location were reduced by a maximum of 30% . The average target: deviation of the needle decreased to less than 5 mm in 50% of cases. Conclusion: The laser guidance system is strongly recommended in CT-guided interventions for quality assurance and high er efficiency. The advantage is especially marked if the target area i s small.