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Multicenter evaluation of a new laser guidance system for computed tomography intervention
K Brabrand1, T M Aaløkken, G A Krombach
1Department of Radiology, Rikshospitalet University Hospital, Oslo, Norway. Knut.Brabrand@rikshospitalet.no
Acta Radiologica (Stockholm, Sweden : 1987)
|July 9, 2004
Summary
This study shows a laser-guided system achieves accurate punctures with high success rates on the first attempt. Interventional radiologists found the system easy to use and valuable for computed-tomography-guided procedures.
Area of Science:
- Medical Imaging
- Interventional Radiology
- Surgical Technology
Background:
- Computed-tomography-guided (CT) punctures are crucial for lesion targeting.
- Improving accuracy and efficiency in CT-guided procedures is an ongoing clinical need.
- Novel guidance systems aim to enhance precision and reduce procedural time.
Purpose of the Study:
- To assess the accuracy of a novel laser-guided system for punctures.
- To evaluate the perceived usefulness and ease of use of this laser guidance technology.
- To validate the system in a multicenter prospective trial.
Main Methods:
- A prospective multicenter trial involving 67 patients undergoing CT-guided punctures.
- Lesions were primarily located in the chest and abdomen, with a mean diameter of 3.1 cm.
- A movable laser guide system, independent of the CT unit, was used with manually entered angles.
Main Results:
- High accuracy was achieved, with a mean needle deviation of 1.8 degrees from the preselected angle.
- The target was reached on the first needle pass in 84.6% of patients (mean 1.1 passes).
- Mean targeting time was 15.6 minutes; users rated usefulness (4.5/5) and ease of use (4.7/5) highly.
Conclusions:
- The laser guidance system demonstrated significant accuracy in puncture angle.
- Users across four centers consistently found the system easy to operate and beneficial.
- The developed laser-guided system is a valuable tool for improving CT-guided punctures.