Gerard C van Rhoon
Letter to Editor
Deep Hyperthermia Applicators: ÃŽÂ£-60 or ÃŽÂ£-Eye?
Author(s): Daryoush Fatehi and Gerard C van RhoonDaryoush Fatehi and Gerard C van Rhoon
Abstract Aim: The goal of this study was functional evaluation of two deep hyperthermia (DHT) applicators to know whether we can replace Σ-60 with Σ-Eye (or vice versa). Methods: Data of all 48 patients with locally advanced cervical cancer who were treated within both applicators were analyzed. No performance of the longitudinal SAR-steering (SAR: specific absorption rate) option of Σ-Eye was done; thus, Σ-Eye was used as an Σ-60 with a modified water-bolus and shape. Temperature and RF-power (RF: radio frequency) indices were analyzed. Additionally a subgroup-analysis was applied for subgroups, categorized for the reasons of switching between the two applicators. Results: Analysis demonstrated a significant difference for power indices as applied to the two applicators; however, no difference was seen for temperature indices. The subgroup analyses revea.. Read More»