ISSN: 1899-0967
Polish Journal of Radiology
Established by prof. Zygmunt Grudziński in 1926 Sun
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1/2020
vol. 85
 
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Interventional radiology
abstract:
Original paper

Percutaneous transthoracic needle biopsy for pulmonary nodules: a retrospective study of a comparison between C-arm cone-beam computed tomography and conventional computed tomography guidance

Surasit Akkakrisee
1
,
Keerati Hongsakul
1

1.
Prince of Songkla University, Songkhla, Thailand
Pol J Radiol 2020; 85: e309-e315
Online publish date: 2020/06/18
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Purpose
To evaluate the safety and diagnostic performance of pulmonary nodule biopsies using cone-beam computed tomography (CBCT) guidance compared with conventional CT (CCT) guidance.

Material and methods
Patients who had pulmonary nodules and underwent a transthoracic needle biopsy at the interventional unit from January 1, 2013 to June 30, 2018 were enrolled. CBCT with XperGuide software was used to biopsy 100 nodules, and CCT guidance was used to biopsy 266 nodules. The two techniques were compared in terms of radiation exposure, complications, and diagnostic accuracy. The p values of less than 0.05 were considered statistically significant.

Results
The characteristics of the nodules were similar between CBCT and CCT guidance. The median radiation doses were not significantly different between the two groups (5.6 mGy vs. 5.4 mGy; p = 0.78). All minor, major, and overall complications were insignificant (25% vs. 24.4%, 3% vs. 4.9% and 28% vs. 29.3%, respectively). Although CBCT guidance showed higher sensitivity and accuracy than CCT guidance (93.3% vs. 84.1% and 95.0% vs. 89.9%), both techniques had similar specificity (100% vs. 100%) in the diagnosis of malignancy.

Conclusions
CBCT guidance in pulmonary nodule biopsy provided higher diagnostic sensitivity and accuracy than CCT guidance. However, the complication rates and effective radiation doses did not differ between both techniques.

keywords:

biopsy, pulmonary nodules, cone-beam CT, conventional CT, accuracy, safety

 
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