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Erschienen in:
01.09.2013 | Original Article
Percutaneous lung biopsy: comparison between an augmented reality CT navigation system and standard CT-guided technique
Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 5/2013
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Purpose
Percutaneous lung biopsies (PLBs) performed for the evaluation of pulmonary masses require image guidance to avoid critical structures. A new CT navigation system (SIRIO, “Sistema robotizzato assistito per il puntamento intraoperatorio”) for PLBs was validated.
Methods
The local Institutional Review Board approved this retrospective study. Image-guided PLBs in 197 patients were performed with a CT navigation system (SIRIO). The procedures were reviewed based on the number of CT scans, patients’ radiation exposure and procedural time recorded. Comparison was performed with a group of 72 patients undergoing standard CT-guided PLBs. Sensitivity, specificity and overall diagnostic accuracy were assessed in both groups.
Results
SIRIO-guided PLBs showed a significant reduction in procedure time, number of required CT scans and the radiation dose administered to patients (\(p<0.001\)). In terms of diagnostic accuracy, SIRIO proved to be more accurate for small-sized lesions (\(<\)20 mm) than standard CT-guidance.
Conclusion
SIRIO proved to be a reliable and effective tool when performing CT-guided PLBs and was especially useful for sampling small (\(<\)20 mm) lesions.