External beam accelerated partial breast irradiation: dosimetric assessment of conformal and three different intensity modulated techniques.

ABSTRACT: Background The aim of the study was to evaluate and compare four different external beam radiotherapy techniques of accelerated partial breast irradiation (APBI) considering target coverage, dose to organs at risk and overall plan quality. The investigated techniques were three dimensional conformal radiotherapy (3D-CRT), "step and shoot" (SS) and "sliding window" (SW) intensity-modulated radiotherapy (IMRT), intensity-modulated arc therapy (RA). Patients and methods CT scans of 40 APBI patients were selected for the study. The planning objectives were set up according to the international recommendations. Homogeneity, conformity and plan quality indices were calculated from volumetric and dosimetric parameters of target volumes and organs at risk. The total monitor units and feasibility w

SUBMITTER: Stelczer G 

PROVIDER: S-EPMC6411019 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature