Table 4. Local Tumor Recurrence.

Anatomical location of local recurrences which occurred during the 60 procedures in this study. Of the five total recurrences, three (1 lung, 2 liver) satellite recurrences were noted to have occurred within the presence of major vasculature. While it is possible these recurrences may be attributed to adjacent microscopic satellite foci, it is also possible the vessels created a “heat-sink” affect resulting in incomplete ablation of all tumor margins.

Location		# of Tumors	Average Tumor Diameter (cm)	Procedural (Type 1)	Satellite (Type 2)	Total Local Recurrences	Mean Time to Recurrence (months)
Lung		20	2.6	1	1	2	4
Liver		9	2.7		2	2
Soft Tissue	Superficial	12	2.8		1	1	10
	Adrenal	7	4.3
	Para-aortic or isolated	2	2.2
	Bone	10	4.3				2
	Subtotal	31	3.6
Total		60	3.1	1	4	5
Total (%)				1.7%	6.7%	8.3%