نتایج جستجو برای: received skin dose
تعداد نتایج: 752644 فیلتر نتایج به سال:
background: to reduce the dose to normal tissues surrounding the treated breast, a uniform magnetic field was used within a humanoid phantom in breast radiotherapy. materials and methods: monte carlo simulations were performed with geant4, irradiating humanoid phantoms in a magnetic field. to reconstruct phantoms, computed tomography (ct) data slices of four patients were used for the monte car...
patients receiving diagnostic doses of radiopharmaceuticals become a source of contamination and exposure for those who come in contact with them, such as nuclear medicine technologists, relatives and nurses. therefore, the measurement of external radiation dose from these patients is necessary. in this study, the dose rates at distances of 10, 50 and 100cm from 70 patients who received diagnos...
BACKGROUND TGF-β has potent profibrotic activity in vitro and has long been implicated in systemic sclerosis (SSc), as expression of TGF-β-regulated genes is increased in the skin and lungs of patients with SSc. Therefore, inhibition of TGF-β may benefit these patients. METHODS Patients with early, diffuse cutaneous SSc were enrolled in an open-label trial of fresolimumab, a high-affinity neu...
This study aimed to obtain the absorbed dose distribution in a heterogeneous head simulator object where brain tumor of 2 cm diameter was located. Materials equivalent and were created. For simulation, elemental composition (H, C, N, O, others) mass density ρ respectively used. X-ray spectra 6, 10 18 MV used for exposures, projecting field 3×3 cm2 tumor, with an isocentric source distance 100 c...
Dose received by external genital organs during preoperative radiotherapy for rectal cancer patients
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