Erschienen in:
01.11.2014 | Chest Radiology
C-arm cone-beam computed tomography needle path overlay for percutaneous biopsy of pulmonary nodules
verfasst von:
Chiara Floridi, Alessandra Muollo, Federico Fontana, Nicola Rotolo, Anna Maria Ierardi, Ejona Duka, Carlo Pellegrino, Gianpaolo Carrafiello
Erschienen in:
La radiologia medica
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Ausgabe 11/2014
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Abstract
Purpose
The aim of this study was to evaluate the feasibility of percutaneous transthoracic needle biopsy of pulmonary nodules under cone-beam computed tomography (CBCT) with “XperGuide” navigation guidance.
Materials and methods
From February 2010 to January 2012, 100 patients (63 men and 37 women; mean age 67.27 years; range 21–88 years) with 100 lung nodules (44 ≤ 3 cm, 56 > 3 cm) underwent CBCT-XperGuide guided percutaneous transthoracic needle biopsies. Technical success, diagnostic accuracy, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and complications were evaluated.
Results
Of 100 nodules (mean size 5.19 cm), 68 were diagnosed as malignant, 27 as benign, and five as indeterminate. Technical success was 95 %. Only 33 of 100 patients underwent surgery: the final pathological diagnosis was concordant with the biopsy diagnosis in 26 cases and discordant in 7 cases (false negatives). Accuracy, sensitivity, specificity, PPV and NPV were 92.6, 90.9, 100, 100 and 72 %, respectively.
Conclusions
CBCT-XperGuide navigation is a new, accurate and safe imaging guidance for percutaneous lung biopsies.