Table 5. Differences in variables between success and failure according to imaging subgroups.

Subgroup	Variables	Total, median (interquartile range)	Success of biopsy	Median (interquartile range)	P value
					Raw	Adjusted
None	Core tissue percentage (%)	100.00 (75.00–100.00)	Success (n=11)	100.00 (66.70–100.00)	0.214	0.641
			Failed (n=39)	100.00 (100.00–100.00)
	Maximal diameter (cm)	1.00 (1.00–1.50)	Success (n=11)	1.50 (1.00–2.00)	0.129	0.386
			Failed (n=39)	1.00 (0.80–1.50)
	Volume (cm3)	0.20 (0.10–0.45)	Success (n=11)	0.23 (0.15–1.20)	0.095	0.285
			Failed (n=39)	0.20 (0.10–0.39)
Either	Core tissue percentage (%)	100.00 (75.00–100.00)	Success (n=33)	100.00 (66.70–100.00)	0.621	>0.99
			Failed (n=42)	100.00 (100.00–100.00)
	Maximal diameter (cm)	1.00 (1.00–1.50)	Success (n=33)	1.50 (1.00–2.00)	0.168	0.505
			Failed (n=42)	1.00 (1.00–1.50)
	Volume (cm3)	0.20 (0.10–0.45)	Success (n=33)	0.23 (0.20–0.60)	0.186	0.559
			Failed (n=42)	0.20 (0.10–0.45)
Both	Core tissue percentage (%)	100.00 (75.00–100.00)	Success (n=195)	100.00 (75.00–100.00)	0.668	>0.99
			Failed (n=31)	100.00 (83.35–100.00)
	Maximal diameter (cm)	1.50 (1.00–2.00)	Success (n=195)	1.50 (1.00–1.80)	0.723	>0.99
			Failed (n=31)	1.50 (1.00–2.00)
	Volume (cm3)	0.45 (0.20–0.68)	Success (n=195)	0.45 (0.20–0.68)	0.856	>0.99
			Failed (n=31)	0.45 (0.13–0.80)

Core tissue percentage is defined as the percentage of core tissue adequately obtained from the total puncture attempts. Maximal diameter was the longest dimension of the obtained core tissue. Volume was estimated by multiplying the length, height, and width of the tissues. None group: defined as having cancer findings on neither CT or PET/CT readings; Either group: defined as having cancer findings on either CT or PET/CT scan; Both group: defined as having cancer findings on CT and PET/CT. CT, computed tomography; PET, positron emission tomography.