The nasopharyngeal radium applicator in the treatment and prevention of deafness.
نویسندگان
چکیده
منابع مشابه
Investigation of Anisotropy Caused by Cylinder Applicator on Dose Distribution around Cs-137 Brachytherapy Source using MCNP4C Code
Introduction: Brachytherapy is a type of radiotherapy in which radioactive sources are used in proximity of tumors normally for treatment of malignancies in the head, prostate and cervix. Materials and Methods: The Cs-137 Selectron source is a low-dose-rate (LDR) brachytherapy source used in a remote afterloading system for treatment of different cancers. This system uses active and inactive sp...
متن کاملComparing experimental assessment of the peripheral dose outside the applicator in electron beams of ELEKTA with Treatment planning system
Introduction: The use of electrons in the electron therapy to destroy tumoral tissue is dedicated significant contribution of different methods of radiation therapy. Scattered radiation due to exited electrons of the applicator affect the dose out of the field in the patient's normal tissue. The aim of this study is to determine the peripheral dose outside the applicator in the...
متن کاملChildren\'s Deafness
This is an article about children's deafness, it's ethiology, diagnosis, treatment, and educational treatment. Here I have given a brief account about the deafness itself and it's individual and social complications, also it's impression on the psychological well baing of the child. Then I have discussed, rather in detail, the ethiology of .children's deafness and I have given some statistic...
متن کاملClival keloid after nasopharyngeal radium irradiation masquerading as skull base malignancy.
OBJECTIVES/HYPOTHESIS Nonchordomatous lesions of the clivus are rare entities. Nasopharyngeal radium irradiation (NRI) treatment consists of application of radium to the posterior nasopharynx near the orifice of the Eustachian tubes, an area adjacent to the clivus. Here we present a unique case of a patient with a history of NRI 70 years prior to presentation with a space-occupying clival lesio...
متن کاملDose Measurements of Parotid Glands and Spinal Cord in Conventional Treatment of Nasopharyngeal Carcinoma Using RANDO Phantom and Thermoluminescent Dosimeters
Introduction Radiotherapy is regarded as the first treatment of choice for nasopharyngeal carcinoma. Despite the advantages of radiotherapy, patients may suffer from a wide range of side-effects due to the presence of many sensitive normal tissues in these regions. If the absorbed dose exceeds the tolerance level in parotid glands and the spinal cord, myelopathy, Lhermitte's sign and xerostomia...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Canadian Medical Association journal
دوره 62 2 شماره
صفحات -
تاریخ انتشار 1950