PURPOSE Historically, treatment of malignant surface lesions has been achieved with linear accelerator based electron beams or superficial x-ray beams. Recent developments in the field of brachytherapy now allow for the treatment of surface lesions with specialized conical applicators placed directly on the lesion. Applicators are available for use with high dose rate (HDR)(192)Ir sources, as w...

AIM The aim of the study was to verify the dose distribution optimisation method in pulsed brachytherapy. BACKGROUND The pulsed-dose rate brachytherapy is a very important method of breast tumour treatment using a standard brachytheraphy equipment. The appropriate dose distribution round an implant is an important issue in treatment planning. Advanced computer systems of treatment planning ar...

As the title implies, this chapter concerns the traits of students who select obstetrics and gynecology (OB/GYN) as a career, and the various factors which attract or inhibit them from entering a residency. Various professional organizations, medical students, residents and authors have differing opinions whether OB/GYN is considered a primary care residency, or a core surgical specialty (Indyk...

PURPOSE To analyze the impact of heterogeneity-corrected dose calculation on dosimetric quality parameters in gynecological and breast brachytherapy using Acuros, a grid-based Boltzmann equation solver (GBBS), and to evaluate the shielding effects of different cervix brachytherapy applicators. MATERIAL AND METHODS Calculations with TG-43 and Acuros were based on computed tomography (CT) retro...

Objective: The COVID-19 is a rapidly ongoing pandemic. 368.513 cases and 10.027 fatalities have been reported in Turkey up to this day. Pregnant women newborns constitute special patient group disease. In our study, we aimed measure the knowledge level, attitude protective measures, perspective of education medicolegal issues obstetricians - gynecologists (OB-GYN) pediatricians on pregnant newb...

The Source Production & Equipment Co. (SPEC) model M-15 is a new Iridium-192 brachytherapy source model intended for use as a temporary high-dose-rate (HDR) brachytherapy source for the Nucletron microSelectron Classic afterloading system. The purpose of this study is to characterize this HDR source for clinical application by obtaining a complete set of Monte Carlo calculated dosimetric pa...

Introduction: Contura is a balloon applicator that used to deliver intra cavity radiation for Partial Breast Irradiation (PBI) treatments. Contura with 4 peripheral lumens surrounding the central, for loading HDR sources from an after loader system can provide an asymmetric dose distribution and gives a more flexible shape of dose than earlier balloon applicators such as Mammo...

background: palladium-103 (103pd) is a brachytherapy source for cancer treatment. the monte carlo codes are usually applied for dose distribution and effect of shieldings. monte carlo calculation of dose distribution in water phantom due to a med3633 103pd source is presented in this work. materials and methods: the dose distribution around the 103pd model med3633 located in the center of 30×30...

Brachytherapy for localized prostate cancer consists in destroying cancer by introducing iodine radioactive seeds into the gland through hollow needles. The planning of the position of the seeds and their introduction into the prostate is based on intra-operative ultrasound (US) imaging. We propose to optimize the global quality of the procedure by: i) using 3D US; ii) enhancing US data with MR...

Combination of interstitial hyperthermia and radiation brachytherapy has been shown to be effective for treatment of a tumor. After increasing the temperature, the tumor becomes sensitive to radiation dose, and as a result the radiation dose can be reduced. The purpose of this study was to identify the appropriate invasive antenna array which can be effectively used on a deep-seated breast tumo...