Development and comparison of a vmat classsolution versus 3d conformal radiotherapy fortangential breast cancer treatments
Başlık çevirisi mevcut değil.
- Tez No: 726992
- Danışmanlar: Belirtilmemiş.
- Tez Türü: Yüksek Lisans
- Konular: Radyasyon Onkolojisi, Radyoloji ve Nükleer Tıp, Radiation Oncology, Radiology and Nuclear Medicine
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2015
- Dil: İngilizce
- Üniversite: Swansea University / Prifysgol Abertawe
- Enstitü: Prifysgol Abertawe
- Ana Bilim Dalı: Yurtdışı Enstitü
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 178
Özet
Özet yok.
Özet (Çeviri)
Background: Radiation therapy has an important role on the treatment of breast cancer. With improvements in medical physics and advancing technology several radiotherapy treatment techniques have been introduced. Volumetric modulated arc therapy (VMAT) is one of the newest techniques that is being clinically used today. Purpose: The aim of this study is to develop and compare a VMAT class solution versus 3D conformal radiotherapy (3D CRT) for tangential breast cancer treatments. Additionally the effects of changing the isocentre position, adding an additional dummy volume and modification of the target volume delineation are investigated as well. Methods: Eight left sided breast cancer patients who were previously treated with 3D CRT at Singleton Hospital (Swansea) under FAST-FORWARD trial protocol are selected for this study. The VMAT plans are created in the treatment planning system (TPS) Oncentra Masterplan® for Elekta Synergy® linac with 80-leaf multileaf collimator (MLC). Full double arc VMAT plans (WS) and two partial arc VMAT plans (CS) which is the class solution are optimized with patient specific DVO designation for all eight patients. Additionally, four extra plans are created for three of the patients by changing the isocentre position (ISO1 and ISO2), adding an additional dummy volume (POPTV) and modification of the target volume delineation (PTVM). Results: PTV V95% is generally comparable for CS (about 93%) to 3D CRT (about 94%) while WS (about 91%) shows worse PTV coverage. Average of HI and CI values for each plan for 8 patients are HI: 0.1267 (3D CRT), HI: 0.1474 (WS), and HI: 0.1162 (CS); CI: 0.9455 (3D CRT), CI: 0.9178 (WS), and CI: 0.9335 (CS). CS presents better OAR sparing compared to 3D CRT specifically for low dose levels (e.g. heart V5%) and for higher dose levels of the OARs, CS is comparable to 3D CRT. Doses to the OARs are increased for the WS plans. CS is comparable to 3D CRT for relatively high dose levels (e.g. 40% and 50%) while 3D CRT is superior to CS with regard to the body dose especially for low dose levels (e.g.
Benzer Tezler
- Beyin tümörlü olgularda tedavi planlamalarının dozimetrik karşılaştırılması
Dosimetric comparison of treatment plannings in brain tumorous cases
ONUR BÜYÜKOK
Doktora
Türkçe
2020
Fizik ve Fizik MühendisliğiEge ÜniversitesiNükleer Bilimler Ana Bilim Dalı
DOÇ. DR. BERKAY CAMGÖZ
- Kranyospinal ışınlamaların vmat radyoterapi tedavi tekniğinde çoklu-alan merkezi uygulamalarının dozimetrik olarak karşılaştırılması
Dosimetric comparison of multi-isocenter applications in vmat technique for craniospinal irradiation
MUSTAFA ÖZER
Yüksek Lisans
Türkçe
2017
OnkolojiUludağ ÜniversitesiRadyasyon Onkolojisi Ana Bilim Dalı
PROF. DR. ZEKİ GÖKAY KAYNAK
- Meme radyoterapisinde alan içinde alan ve yoğunluk ayarlı radyoterapi tedavi tekniklerinin dozimetrik olarak karşılaştırılması
Dosimetric comparison of field in field and intensity-modulated radiotherapy treatment techniques in breast radiotherapy
FUAT AKMEN
Yüksek Lisans
Türkçe
2022
Radyasyon Onkolojisiİstanbul Aydın ÜniversitesiSağlık Fiziği Ana Bilim Dalı
DR. ÖĞR. ÜYESİ KAMİL TEMİZYÜREK
- Tekli ve çoklu beyin metastazlarının stereotaktik radyocerrahisinde düzlemsel ve düzlemsel olmayan tedavi planlarının dozimetrik incelenmesi
Single and multiple brain metastases in stereotactic radio surgery plane and non planar treatment dosimetric analysis of plans
ESRA İLGÜN
Yüksek Lisans
Türkçe
2023
Radyasyon OnkolojisiAnkara Yıldırım Beyazıt ÜniversitesiRadyoloji Ana Bilim Dalı
DR. ÖĞR. ÜYESİ HÜSEYİN FURKAN ÖZTÜRK
- Farklı IGRT yöntemlerinin 6 boyut düzeltme değeri doğruluğunun karşılaştırılması
Comparison of 6 dimensional correction value for different IGRT methods
ŞEYMA ÇAVDAR
Yüksek Lisans
Türkçe
2019
OnkolojiAcıbadem Mehmet Ali Aydınlar ÜniversitesiSağlık Fiziği Ana Bilim Dalı
PROF. DR. KAZIM MERİÇ ŞENGÖZ