Table 2.

Cryoablation Treatment Characteristics

Characteristic	Value
Number of tumors	224
Number of procedures	167
Number of tumors treated per procedure, median SD (range)	1.0 ± 0.7 (1–5)
1	126/167 (75)
2	30/167 (18)
3	7/167 (4)
4	3/167 (2)
5	1/167 (1)
Number of tumors treated per patient, median SD (range)	1.0 ± 1.2 (1–6)
1	79/128 (62)
2	23/128 (18)
3	15/128 (12)
4	5/128 (4)
5	2/128 (2)
6	4/128 (3)
Procedure time, min (SD)	77.7 ± 37.9
Freeze duration per tumor, min (SD)	20.6 ± 4.3
Mean number of needles per tumor diameter
0.5–1.0 cm	1.5 ± 0.5
1.1–2.0 cm	1.9 ± 0.6
2.1–3.0 cm	2.4 ± 0.5
≥3.1 cm	3.0 ± 1.4
Anesthesia
General	115 (69%)
Conscious sedation	49 (29%)
Local	3 (2%)
Median overall hospital stay, days (range)	1.0 (0–13)