Feasibility of intensity-modulated radiotherapy to treat gastric cancer.

ABSTRACT:

Aim

To present a proposed gastric cancer intensity-modulated radiotherapy (IMRT) treatment planning protocol for an institution that have not introduced volumetric modulated arc therapy in clinical practice. A secondary aim was to determine the impact of 2DkV set-up corrections on target coverage and organ at risk (OAR).

Methods and materials

Twenty consecutive patients were treated with a specially-designed non-coplanar 7-field IMRT technique. The isocenter-shift method was used to estimate the impact of 2DkV-based set-up corrections on the original base plan (BP) coverage. An alternative plan was simulated (SP) by taking into account isocenter shifts. The SP and BP were compared using dose-volume histogram (DVH) plots calculated for the internal target volume (ITV) and OAR

SUBMITTER: Skrobala A 

PROVIDER: S-EPMC6240630 | biostudies-literature | 2019 Jan-Feb

REPOSITORIES: biostudies-literature