نتایج جستجو برای: external radiation
تعداد نتایج: 420496 فیلتر نتایج به سال:
Following the Chernobyl accident of April 26, 1986, two population groups were primarily exposed to radiation: emergency workers involved in mitigation of the accident consequences (liquidators) and residents of contaminated territories. A dramatic increase in thyroid cancer incidence among residents exposed as children has been apparent since 1992. However, there remains considerable uncertain...
PURPOSE Prostate specific antigen velocity 2.0 ng/ml per year or greater in the year before prostate cancer diagnosis is associated with cancer specific survival following radical prostatectomy and radiation therapy. We evaluated the relationship between prediagnosis prostate specific antigen velocity and cancer progression following primary radiation therapy. MATERIALS AND METHODS We analyze...
Radiation safety is an integral part of targeted radionuclide therapy. The aim of this work was to study the external dose rate and retained body activity as functions of time in differentiated thyroid carcinoma patients receiving 131I therapy. Seventy patients were stratified into two groups: the ablation group (A) and the follow-up group (FU). The patients' external dose rate was measured, an...
PURPOSE The purpose of this study was to examine factors associated with the presence of secondary external and internal lymphedema in patients with head-and-neck cancer (HNC). METHODS AND MATERIALS The sample included 81 patients ≥3 months after HNC treatment. Physical and endoscopic examinations were conducted to determine if participants had external, internal, and/or combined head-and-nec...
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