Stručni rad
https://doi.org/10.55378/rv.46.1.5
Delineating organs at risk in radiotherapy
Ivan Balentović
orcid.org/0000-0001-5126-0097
; Klinički bolnički centar Rijeka
Sažetak
The goal of radiotherapy, as one of the oncology treatment procedures is tumour growth control considering possible complications on healthy tissue. It is necessary to deliver prescribed absorbed doze to the aimed area of interest while delivered doze to surrounding healthy tissue, specially organs sensitive to ionizing radiation must be as low as possible. While planning radiotherapy treatment special attention must be payed to organs at risk (OAR) to avoid pathological changes to healthy tissue with irreversible damages.
OAR-s are clearly shown by division into anatomical groups (head and neck, chest, abdominal and pelvic region). Their sensitivity to absorbed doze depending on their structure and division is divided into serial and parallel OAR and is described considering their tolerance to absorbed doze affects, treatment planning and prescribed tumour doze. There is a chart with doze limitations for each OAR prescribed.
To conduct radiotherapy treatment there must be a team of radiation oncologists, medical physicists and radiation technologists (RTT). Precise delineation of target volume and OAR´s is an important factor for the outcome of radiotherapy. Planning radiation therapy, isocenter determination and treatment itself are followed after target volume determination.
This article presents a multidisciplinary model with a goal to improve the quality of treatment planning.
Ključne riječi
Radiotherapy, organs at risk, target volume, dose limits
Hrčak ID:
276178
URI
Datum izdavanja:
6.5.2022.
Posjeta: 1.681 *