Journal of contemporary brachytherapy · 2010
Modified Heyman packing performed with small number of Simon-Norman catheters.
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Pálvölgyi Jenö, Agyemang-Prempeh Kofi
Аннотация
PURPOSE: Modified Heyman packing method, performed usually with 6-11 flexible catheters is one out of many brachytherapy treatments. We described the insertion and dose planning method, with the use of 4-6 Simon-Norman catheters positioned to the fundus uteri, which is the most frequent source of the endometrial cancer.
MATERIAL AND METHODS: We investigated the dose distribution of the main classes of regular catheter insertions with Simon-Norman applicators using dose profiles, obtained in lateral and axial direction at the fundus, and compared with the dose distribution of the Y-shaped catheter arrangements.
RESULTS: The insertions with five and six Simon-Norman catheters produced higher dose at the fundus uteri, compared with the Y-shaped applicator.
CONCLUSIONS: Insertions performed with small number of catheters permits to perform dosimetry optimisation for each treatment fraction.
MATERIAL AND METHODS: We investigated the dose distribution of the main classes of regular catheter insertions with Simon-Norman applicators using dose profiles, obtained in lateral and axial direction at the fundus, and compared with the dose distribution of the Y-shaped catheter arrangements.
RESULTS: The insertions with five and six Simon-Norman catheters produced higher dose at the fundus uteri, compared with the Y-shaped applicator.
CONCLUSIONS: Insertions performed with small number of catheters permits to perform dosimetry optimisation for each treatment fraction.