Computer 3D modeling of radiofrequency ablation of atypical cartilaginous tumours in long bones using finite element methods and real patient anatomy

European Radiology Experimental

Table 1 Tissue and material properties

Material/tissue	Electrical conductivity (S/m)	Blood perfusion coefficient (x 10⁻³s⁻¹)	Density (kg/m³)	Specific heat (J/kg ∙ K)	Thermal conductivity (W/m/K)
Active electrode ^a	1.00 R + 08	0	6,450^a	840	18
Tumour	0.4 ^b	0	1,150	3,664	0.487
Trabecular bone	0.05	0.167	1,080	2,060	0.36
Cortical bone	0.022	0.167	1,908	1,313	0.32
Muscle	0.446	.6167	1,090	3,421	0.49

All values were obtained from [30], except where indicated. ^aValues as described in [31], which are of a nickel-titanium electrode, ^bassumptions for the electrical conductivity of the tumour, which are twice the value of normal healthy cartilage, also obtained from [30]