Investigation of The Effect of Intermediate Dose Calculation Module on Dose Dıstrıbutıon in Lung Cancer Radiotherapy Patients

Year 2019, Volume: 5 Issue: 3, 142 - 146, 30.11.2019

Yonca Yahşi Çelen , Hazım Orhan Kızılkaya

https://doi.org/10.22399/ijcesen.626510

Abstract

The aim of this study was to
investigate the effect of the use of intermediate dose calculation module on
dose volume histogram (DVH) during dose optimization in the treatment plans of
radiotherapy patients diagnosed with lung cancer.

This study was carried out by using
Eclipse (Version 15.3) treatment planning system with Trilogy model Linear
Accelerator device in Radiation Oncology Department of Şişli Hamidiye Etfal
Training and Research Hospital. Ten patients with lung cancer were included in
the study. In this study, critical organ doses, conformity index (CI) and
homogenity index (HI) were compared by making optimization in cases where
intermediate dose calculation module was active and inactive.

The plans using the Intermediate
dose calculation model are more homogeneous and uniform. Differences between
critical organ doses, conformity index (CI) and homogenity index (HI) were
statistically significant when using the Intermediate dose calculation module.

It has been demonstrated that the
intermediate dose calculation method in heterogeneous lung cancer patients is
superior in terms of dose homogeneity and tumor volume enveloping, which
improves the quality of treatment plans.

Keywords

Lung Cancer, IMRT, Intermediate Dose Calculation, Optimization

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