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Article10.1118/1.4924754

SU‐E‐T‐393: Evaluation of Large Field IMRT Versus RapidArc Planning for Carcinoma Cervix with Para‐Aotic Node Irradiation

Srinivas Raman,Y Girigesh,M. Mishra,K Lalit-2015-06-01-Medical Physics
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TL;DRAbstract

Purpose: The objective of this work is to evaluate and compare Large field IMRT and RapidArc planning for Carcinoma Cervix and Para‐aotic node irradiation. Methods: In this study, ten patients of Cervix with para‐aotic node have been selected with PTV length 35+2cm. All plans were generated in Eclipse TPS V10.0 with Dynamic IMRT and RapidArc technique using 6MV photon energy. In IMRT planning, 7 fields were chosen to get optimal plan and in RapidArc, double Full arc clockwise and counter clockwise were used for planning. All the plans were generated with single isocenter and calculated using AAA dose algorithm. For all the cases the prescribed dose to PTV was same and the plan acceptance criteria is; 95% of the PTV volume should receive 100% prescribed dose. The tolerance doses for the OAR's is also taken in to account. The evaluation criteria used for analysis are; 1) Homogeneity Index, 2) Conformity Index, 3) Mean Dose to OAR's, 4)Total monitor units delivered. Results: DVH analysis

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Purpose: The objective of this work is to evaluate and compare Large field IMRT and RapidArc planning for Carcinoma Cervix and Para‐aotic node irradiation. Methods: In this study, ten patients of Cervix with para‐aotic node have been selected with PTV length 35+2cm. All plans were generated in Eclipse TPS V10.0 with Dynamic IMRT and RapidArc technique using 6MV photon energy. In IMRT planning, 7 fields were chosen to get optimal plan and in RapidArc, double Full arc clockwise and counter clockwise were used for planning. All the plans were generated with single isocenter and calculated using AAA dose algorithm. For all the cases the prescribed dose to PTV was same and the plan acceptance criteria is; 95% of the PTV volume should receive 100% prescribed dose. The tolerance doses for the OAR's is also taken in to account. The evaluation criteria used for analysis are; 1) Homogeneity Index, 2) Conformity Index, 3) Mean Dose to OAR's, 4)Total monitor units delivered. Results: DVH analysis

Keywords

MedicineNuclear medicineIsocenterRadiation treatment planningCERVIX CARCINOMARadiation therapyMedical physicsCervical cancer

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