Browsing by Department "Radyasyon Onkolojisi"
Now showing items 21-40 of 77
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Definitive Treatment For Locally Advanced Cervical Cancer: A Retrospective Analysis From A Singe Institution
(Akad Doktorlar Yayınevi, 2018)The primary aim of this study was to evaluate the long-term treatment outcomes of definitive chemoradiotherapy (CRT) of locally advanced cervical cancer and beside this to identify prognostic factors and related toxicities. ... -
Dermatofibrosarcoma Protuberans Metastasizing To Cavernous Sinuses And Lungs: A Case Report
(Oxford Univ Press, 2001)Dermatofibrosarcoma protuberans (DFSP) is a locally aggressive tumor with a low potential for distant metastases. We report a 22-year-old female patient with a typical cutaneous DFSP who developed five local recurrences ... -
Determination Of The Planning Target Volume Margin By The Use Of Kv Portal Imaging And Kvcone Beam Computerized Tomography
(Akad Doktorlar Yayınevi, 2013)With portal imaging devices we can easily determine the position of bones in the patient, but we cannot visualize soft tissues. Kilo voltage cone beam computed tomography (CBCT) imaging integrated to treatment machine is ... -
Dosimetric Comparison Of Three‐Dimensional Conformal Radiotherapy And Intensity‐Modulated Radiotherapy For Left‐Sided Chest Wall And Lymphatic Irradiation
(2019)Introduction The aim of this study was to compare five different techniques for chest wall (CW) and lymphatic irradiation in patients with left‐sided breast carcinoma. Methods Three‐dimensional conformal radiotherapy ... -
Evaluation Of Mlc Leaf Positioning Accuracy For Static And Dynamic Imrt Treatments Using David In Vivo Dosimetric System*
(2016)Accuracy and precision of leaf positioning in multileaf collimators (MLCs) are significant factors for the accuracy of IMRT treatments. This study aimed to investigate the accuracy and repeatability of the MLC leaf positioning ... -
Evaluation Of Nanodot Optically Stimulated Luminescence Dosimeter For Cone-Shaped Small-Field Dosimetry Of Cyberknife Stereotactic Radiosurgery Unit: A Monte Carlo Simulation And Dosimetric Verification Study
(2019)Aim: The aim of this study was to investigate the adequacy of nanoDot optically stimulated luminescence (OSL) dosimeter for small field dosimetry before its in vivo applications in CyberKnife SRS unit. Materials and Methods: ... -
Evaluation Of Secondary Malignancy Risk Due To The Whole Body Computerized Tomography Simulation In Radiotherapy Facilities
(Akad Doktorlar Yayınevi, 2013)Nowadays, the use of computed tomography (CT) simulation is getting widespread with the use of new treatment modalities like three dimensional conformal radiotherapy (3D-CRT), intensity modulated radiotherapy (IMRT), ... -
Evaluation Of Skin Dose Associated With Different Frequencies Of Bolus Applications In Post-Mastectomy Three-Dimensional Conformal Radiotherapy
(2009)Background The study aimed to calculate chest-wall skin dose associated with different frequencies of bolus applications in post-mastectomy three-dimensional conformal radiotherapy (3D-CRT) and to provide detailed information ... -
Evaluation Of The Effect Of Changes In Dose Rate On Rat Lung Cells
(Sage Publications Inc, 2015)The aim of this study is to evaluate the effect of dose rate (DR) on lung tissue. The rats included in the study were randomly grouped into 3 groups: Group (G) 1 was defined as control group, and in this group rats were ... -
Ewing Sarcoma In An Infant And Review Of The Literature
(2019)Bedük Esen ÇS, Gültekin M, Aydın GB, Akyüz C, Karlı Oğuz K, Orhan D, Cengiz M, Gürkaynak M, Yıldız F. Ewing sarcoma in an infant and review of the literature. Turk J Pediatr 2019; 61: 760-764. Ewing sarcoma (ES) is a rare ... -
Fare Melanom Tümör Modelinde Radyoterapide Kullanılan Farklı Doz Hızlarının Tümör Mikroçevresi Üzerine Etkileri
(Tıp Fakültesi, 2022)The dose rate is an important variable that affects cell survival. With the introduction of modern accelerators and treatment techniques with high dose rate capacity, it has become important in external radiotherapy (RT) ... -
Gastrointestinal Sistem Kanserli Hastalarda Mide Doluluğunun Radyoterapiye Etkisi
(Kanser Enstitüsü, 2017)In the treatment of gastrointestinal system (GIS) cancers, radiotherapy (RT) is frequently applied as three dimensional conformal RT (3BKRT) or intensity adjusted RT (YART). GIS tumors are very sensitive to environmental ... -
Genişletilmiş Bilgisayarlı Tomografi Skalası Ve Metal Artefakt Azalımı Yöntemlerinin İmplantlı Hastalarda Doz Dağılımına Etkisinin Bireyselleştirilmiş Fantomlar Kullanılarak Analiz Edilmesi
(Kanser Enstitüsü, 2019-09)Analysis of The Effects of Extended Computed Tomography Scale and Metal Artefact Reduction Methods on Dose Distribution of Patient with Implant by Using Individualized Fantoms. Hacettepe University Graduated School of ... -
Helikal Tomoterapi ile Prostat Işınlamalarında Kritik Organ Dozlarının Cihaz İçi Parametrelere göre Değerlendirilmesi
(Sağlık Bilimleri Enstitüsü, 2017)The treatment planning of Tomotherapy depends on three device parameters, i.e. field width (FW), pitch (P) and modulation factor (MF). Various treatment plans can be generated with different combinations of these parameters. ... -
Impact Of Treatment Strategies On Local Control And Survival In Uterine Carcinosarcomas In Turkey
(Asian Pacific Organization Cancer Prevention, 2013)Background: The purpose of this study was to determine the clinical characteristics, patterns of recurrence and survival outcomes in patients with uterine carcinosarcomas treated in our institution. Materials and Methods: ...