Setup Errors in Interfraction Radiotherapy in Patients of Head and Neck Cancer

R Yadav; AK Chauhan; P Kumar; P Kumar; J Nigam; NS Silambarasan

doi:10.21761/jms.v7i02.04

R Yadav Ex- Junior Resident, Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India
AK Chauhan Professor,Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India
P Kumar Professor ,Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India
P Kumar Associate Professor Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India.
J Nigam Assistant Professor Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India.
NS Silambarasan Assistant Professor Department of Radiation Oncology, SRMS Institute of Medical Sciences, Bareilly, Uttar Pradesh, India.

DOI: https://doi.org/10.21761/jms.v7i02.04

Keywords: Head neck cancers, Radiotherapy, Set up errors.

Abstract

Reproducibility of daily position is necessary for
efficacious delivery of radiotherapy. There are uncertainties
during the delivery of radiotherapy which increases the risk of
inadequate dose delivery to the target as well as unnecessary
irradiation of nearby normal tissues. These uncertainties, known
as setup errors, should be clinically in order to attain optimum
planning target volume (PTV) margins. The present study aims
to find out the optimum PTV margins in our department with
existing immobilization system and imaging facilities.

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