Percutaneous lung biopsy: comparison between an augmented reality CT navigation system and standard CT-guided technique

• Published in: International journal for computer assisted radiology and surgery Vol. 8; no. 5; pp. 837 - 848
• Main Authors: Grasso, R. F., Faiella, E., Luppi, G., Schena, E., Giurazza, F., Del Vescovo, R., D’Agostino, F., Cazzato, R. L., Beomonte Zobel, B.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2013
• Subjects: Aged; Computer Imaging; Computer Science; Equipment Design; Female; Fluoroscopy - methods; Health Informatics; Humans; Image-Guided Biopsy - methods; Imaging; Lung - diagnostic imaging; Lung - pathology; Lung Diseases - diagnosis; Lung Neoplasms - diagnosis; Male; Medicine; Medicine & Public Health; Middle Aged; Original Article; Pattern Recognition and Graphics; Radiography, Interventional - instrumentation; Radiology; Reproducibility of Results; Retrospective Studies; ROC Curve; Surgery; Tomography, X-Ray Computed - instrumentation; User-Computer Interface; Vision; Lung biopsy; Optical tracking; Virtual navigation guidance; CT scan
• ISSN: 1861-6410; 1861-6429
• DOI: 10.1007/s11548-013-0816-8

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 ( ). 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.