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. 2017 Feb;9(2):333–343. doi: 10.21037/jtd.2017.02.16

Table 2. Diagnostic yield of CT-guided percutaneous transthoracic needle biopsy.

Parameters Lesion size Overall (n=560)
≤1 cm (n=61) 1.1–2.0 cm (n=214) 2.1–3.0 cm (n=285)
True positive 30 118 163 311
True negative 23 85 111 219
False positive 0 0 0 0
False negative 4 8 10 22
Inconclusive 4 3 1 8*
Diagnostic accuracy (%) 86.9 94.9 96.1 94.6

*, final diagnosis of the 8 lesions is benign disease for 3 lesions and malignant disease for the other 5 lesions.