نتایج جستجو برای: riskestimation secondary thyroid cancer and breast radiotherapy
تعداد نتایج: 17174262 فیلتر نتایج به سال:
Background: Streptomyces is one of the most important prokaryotic microorganisms, and their secondary metabolites have high antimicrobial and cytotoxic properties. Three-quarters of the antibiotics known to be produced by these bacteria. As a result, finding new effective compounds from these microorganisms can be a way to treat cancer. The aim of this study was to isolate and screen halophilic...
BACKGROUND The thyroid gland is among the most radiosensitive organs. However, little is known about the long-term risk of developing a thyroid tumor after fractionated external radiotherapy for cancer during childhood. OBJECTIVE To study the long-term risk of developing a thyroid tumor in 4096 three-year survivors of childhood cancer treated between May 1942 and December 1985 in 8 centers in...
BACKGROUND Adjuvant radiotherapy after breast-conserving surgery is indicated in the vast majority of breast cancer patients. Conventionally fractionated radiotherapy with 50 Gy in 25 fractions was considered standard of care for several decades. The recently publishes long-term results of randomized trials that have tested different moderately hypofractionated radiotherapy schedules that may c...
We present three cases of patients with breast cancer and psoriasis who received radiotherapy following breast-conserving surgery. One patient developed an extensive flare-up during chemotherapy. After discontinuing chemotherapy, she conventional to the ipsilateral whole breast, axillary, supraclavicular lymph nodes 50.4 Gy in 28 fractions boosted 10 five tumor bed. Two hypofractionated whole-b...
objectives: the aim of present study was examining the effectiveness of group metacognition treatment on metacognition beliefs in women with breast cancer. method: in a quasi-experimental design, with pre-test and post-test and control group, 24 patients with a diagnosis of breast cancer, among patients who referred to the division of oncology and radiotherapy of imam hossein hospital in teh...
Hadron therapy (HT) with protons and carbon ions is an advanced radiotherapy technique. As the first report addressing this topic, the present study aimed to estimate the number of patients eligible for HT in Fars province and the whole of Iran. The data were collected through direct inspection of medical records of the patients treated at the Radiotherapy Department, Namazi Hospital, Shiraz, I...
BACKGROUND Although ionizing radiation is an established environmental risk factor for thyroid cancer, the effect of chemotherapy drugs on thyroid cancer risk remains unclear. We evaluated the chemotherapy-related risk of thyroid cancer in childhood cancer survivors and the possible joint effects of chemotherapy and radiotherapy. METHODS The study included 12,547 five-year survivors of childh...
We performed a study to investigate the status of thyroid nodules and thyroid functions in Chinese breast cancer women. The clinical data of female patients with breast cancer or benign breast diseases and normal populace were evaluated. The thyroxine(T4) level in initially diagnosed breast cancer patients were significantly higher than those in benign breast diseases patients (7.68±1.51 vs 7.2...
Background In radiotherapy, especially when treating children, minimising exposure of healthy tissue can prevent the development adverse outcomes, including second cancers. this study we propose a validated Monte Carlo framework to evaluate complete patient during paediatric brain cancer treatment. Materials and methods Organ doses were calculated for treatment diffuse midline glioma (50.4 Gy w...
PURPOSE The aim of this study was to investigate the peripheral doses resulting from volumetric modulated arc therapy (VMAT) and intensity modulated radiotherapy (IMRT) techniques in cervical cancer radiotherapy. METHODS Nine patients with cervical cancer had treatment planned with both VMAT and IMRT. A specially designed phantom was used for this study, with ion chambers placed at interest p...
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