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Original

Radio hyperthermia for re-treatment of superficial tumours

, , , , , , , & show all
Pages 189-198 | Received 21 Apr 2008, Accepted 06 Dec 2008, Published online: 09 Jul 2009

Figures & data

Table I.  Patients and lesions characteristics.

Figure 1. CCMA applicators: from left to right the α, β and γ applicators.

Figure 1. CCMA applicators: from left to right the α, β and γ applicators.

Table II.  Contact curved microstrip applicators (CCMAs) main features according to the Operative Manual of Alba Hyperthermia System.

Figure 2. Experimental normalized distribution of 3D SAR (in dB) of beta-type antenna, (a) on a parallel plane 1 cm under the bolus; (b) on a perpendicular plane. The numerical analysis was performed by BEST, a proprietary FDTD code. Dielectric parameters of various materials were: Bolus: ε (relative dielectric constant) = 78, σ (S/m) (electrical conductivity) = 0.04; Muscle: ε = 56.86, σ (S/m) = 0.8; Applicator substrate: ε = 2.17, σ (S/m) = 0.18.

Figure 2. Experimental normalized distribution of 3D SAR (in dB) of beta-type antenna, (a) on a parallel plane 1 cm under the bolus; (b) on a perpendicular plane. The numerical analysis was performed by BEST, a proprietary FDTD code. Dielectric parameters of various materials were: Bolus: ε (relative dielectric constant) = 78, σ (S/m) (electrical conductivity) = 0.04; Muscle: ε = 56.86, σ (S/m) = 0.8; Applicator substrate: ε = 2.17, σ (S/m) = 0.18.

Figure 3. The increase of blood perfusion in a tissue undergoing a power delivery of typically 75 W.

Figure 3. The increase of blood perfusion in a tissue undergoing a power delivery of typically 75 W.

Table III.  Hyperthermia treatment, main characteristics.

Table IV.  Results per treatment groups.

Table V.  Dose RT-response relationship per treatment groups.

Table VI.  The mean of T max-response relationship per treatment groups.

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