diplomsko delo
Eva Imenšek (Author), Iris Petruz (Author), Valerija Žager (Mentor), Sabina Androjna (Co-mentor)

Abstract

Uvod: Rak dojk je v razvitem svetu najpogostejši rak pri ženskah. Obsevanje izvajamo v različnih položajih, kot recimo v AP položaju s pomočjo fiksacijske podlage Breastboard. Ta položaj se najpogosteje uporablja za obsevanje bolnic z manjšimi dojkami. Drugi način je obsevanje v PA položaju na fiksacijski podlagi Sagittilt. V tem položaju obsevamo bolnice z večjimi dojkami (najmanj košarica C). Kontraindikacija za tovrstni položaj pri obsevanju je nezmožnost ležanja na trebuhu. Namen: V diplomskem delu smo želeli raziskati, pri katerem od položajev pri geometrični verifikaciji pred obsevanjem nastanejo večja odstopanja od izocentra v lateralni, longitudinalni oziroma v vertikalni smeri ter kako veliki so ti premiki. Poleg tega smo raziskali, kako starost bolnice in število frakcij obsevanja vplivata na velikost interfrakcijskih premikov. Metode dela: Uporabili smo deskriptivno raziskovalno metodo in statistično analizo podatkov. Primerjali smo podatke o interfrakcijskih premikih pri 50 bolnicah, pri čemer se je 25 bolnic obsevalo v AP položaju na podlagi Breastboard ter 25 bolnic v PA položaju na podlagi Sagittilt, proizvajalca Orfit. Bolnice so se obsevale na linearnem pospeševalniku Elekta Synergy na Onkološkem inštitutu Ljubljana. Rezultati: Iz dobljenih rezultatov in statistične analize smo ugotovili, da so interfrakcijski premiki večji pri obsevanju v PA položaju, kjer se največji premik pojavi v lateralni smeri. Ugotovili smo tudi, da starost in število frakcij obsevanja ne vplivata na velikost interfrakcijskih premikov. Razprava in zaključek: Sklenemo lahko, da se večji premiki pojavijo v PA položaju obsevanja, na kar lahko v večji meri vpliva neudobje bolnice, ne pa tudi starost bolnice ali število frakcij obsevanja. Pri obsevanju je pomembna zagotovitev enakega položaja in preprečevanje nastavitvenih napak, kar dosežemo z dnevno geometrično verifikacijo.

Keywords

diplomska dela;radiološka tehnologija;rak dojke;obsevanje raka dojke;interfrakcijski premiki;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL ZF - University College of Health Studies
Publisher: [E. Imenšek
UDC: 616-07
COBISS: 76165379 Link will open in a new window
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Downloads: 61
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Other data

Secondary language: English
Secondary title: Evaluation of breast cancer irradiation in supine and prone position
Secondary abstract: Introduction: Breast cancer is the most common cancer among women. It can be irradiated in different positions, such as supine position on Breastboard. This position is the most usable for patients with small breasts. Breast cancer can also be irradiated in prone position on Sagittilt. Patient with larger breasts (at least bra size C) are irradiated in this position. Not being able lying on patient's abdomen is the greatest contraindication. Purpose: In our diploma work we wanted to figure out in which position during geometric verification before radiotherapy, appear to be bigger isocentric deviation in lateral, longitudinal or vertical direction and how big are those. In addition we have researched if and how patient's age and number of fractions affect size of interfraction movements. Methods: We have used descriptive method and statistical data analysis. We have compared interfraction movements of 50 patients; 25 patients had been irradiated in supine position on Breastboard and 25 patients had been irradiated in prone position on Sagittilt (Orfit). All patients had been irradiated with linear accelerator Elekta Synergy at Onkološki inštitut Ljubljana. Results: From obtained results and statistical analysis we found out that the interfraction movements are bigger in prone position, namely in lateral direction. We have also found out that patient's age and number of fractions do not have any effect on interfraction movements. Discussion and conclusion: To conclude larger movements are bigger in prone position; this can be mostly due to patient's discomfort, but not patient's age or number of fractions. It is important to ensure same position during radiotherapy and to prevent set-up errors, which can be reached using daily geometric verification.
Secondary keywords: diploma theses;radiologic technology;breast cancer;breast cancer irradiation;interfraction movements;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Zdravstvena fak., Oddelek za radiološko tehnologijo
Pages: 26 str., [3] str. pril.
ID: 13381058