FABRICATION OF A FEMALE PELVIC PHANTOM FOR DOSIMETRIC VERIFICATION OF BRACHYTHERAPY TREATMENT OF CARCINOMA CERVIX

Mary Joan; Sathiyan Saminathan

Volume : VIII, Issue : VI, June - 2019

FABRICATION OF A FEMALE PELVIC PHANTOM FOR DOSIMETRIC VERIFICATION OF BRACHYTHERAPY TREATMENT OF CARCINOMA CERVIX

Mary Joan, Sathiyan Saminathan

Abstract :

An accurate way to do radiation dose assessment is with the help of realistic phantoms. For faication of the phantom various anatomical structures were delineated on CT images. The electron density of the materials chosen for faication was based on HU to electron density caliations. The CT numbers of the phantom materials and those of the delineated regions on the patient CT were sampled using the Eclipse planning system and indicates agreement. The doses measured with the TLDs were compared with TPS calculated dose in different locations in the phantom like point A, bladder, rectum, left and right femoral head for ICBT treatment planning. The faicated phantom is a representative female pelvis, realistic in density, size and anatomy and suitable for the evaluation of cervix cancer achytherapy treatments. The dosimetric measurements confirm the suitability of the faicated phantom for the verification of dose delivery in achytherapy of carcinoma cervix.