Implementation Technique of Radiotherapy Patients Dose Verification 3DCRT and IMRT

Abstract

The implementation of Patient Dose Verification Techniques 3DCRT and IMRT aims to guarantee that the dosing shines in accordance with planning the therapy conducted in TPS (Treatment Planning System). Research carried out using Variant types of Clinac CX in Radiotherapy Unit hospital Wahidin Sudirohusodo Makassar. Verify patient dose measurement is done using a dose point and a dose plannar by taking 10 cancer patients cervix 3DCRT techniques and 10 engineering nasopharynx cancer patients IMRT. Results of the study 10 point dose cervix cancer patients techniques 3DCRT retrieved the deviation between -0.005% to 0.243%, an average deviation -0.234%, standard deviation -0.186, and CL 0.364. While in nasopharynx cancer patients IMRT technique obtained the deviation between -1,385% to 1.652%, an average deviation 0.146%, standard deviation 0.015, and CL 0.174. Dose plannar measurement 10 samples of cancer patients cervix engineering 3DCRT retrieved gamma index 3% 3 mm on average of 97.26%, standard deviation 0.063, CL 2.772 and 2 mm 2% average 85.91%, standard deviation of 0.007, CL 15.17. While in nasopharynx cancer patient with IMRT techniques acquired gamma index 3% 3 mm average 97.00%, standard deviation 0.016, CL 3.03 and 2% 2 mm average 83.38%, standard deviation 0.016, and CL 16.65.