نتایج جستجو برای: lung tissue dosimetry
تعداد نتایج: 1182379 فیلتر نتایج به سال:
Title: Evaluation of expression and methylation of promoter of JAK2 and STAT3 genes in lung cancer tissue and its comparison with adjacent healthy tissue in 75 people with this cancer. Objective: Lung cancer is a disease that affects lung tissue cells. It is a common cancer in the world and is one of the deadliest cancers. Molecular variations of genes have a significant effect...
This study is the first to use 10- to 90-kg tissue-equivalent phantoms as patient surrogates to measure peripheral skin doses (Dskin) in lung cancer treatment through Volumetric Modulated Arc Therapy of the Axesse linac. Five tissue-equivalent and Rando phantoms were used to simulate lung cancer patients using the thermoluminescent dosimetry (TLD-100H) approach. TLD-100H was calibrated using 6 ...
Online light dosimetry with real-time feedback was applied for temoporfin-mediated interstitial photodynamic therapy (PDT) of dog prostate. The aim was to investigate the performance of online dosimetry by studying the correlation between light dose plans and the tissue response, i.e., extent of induced tissue necrosis and damage to surrounding organs at risk. Light-dose planning software provi...
Background: Soft tissue sarcoma is a relatively rare disease from mesenchymal cells . Lung metastases occur in many of the patients with limb sarcoma . The aim of this study was the evaluation of lung metastasis due to limb osteogenic and soft tissue sarcoma in the hospitalized patients at Al-Zahra hospital in Isfahan between 1995 and 2008. Methods: This descriptive cross sectional study wa...
UNLABELLED (64)Cu-DOTA-AE105 is a novel positron emission tomography (PET) tracer specific to the human urokinase-type plasminogen activator receptor (uPAR). In preparation of using this tracer in humans, as a new promising method to distinguish between indolent and aggressive cancers, we have performed PET studies in mice to evaluate the in vivo biodistribution and estimate human dosimetry of ...
The behavior of airborne particles in the human respiratory system is closely related to local tissue dosimetry and its associated health risks. inhalation these known be origin lung diseases, such as cancer, chronic obstructive pulmonary disease, cardiovascular disease. To compensate for difficulty experiments involving volunteers, silico studies using numerical models have been adopted promis...
Background and purpose: Breast cancer is the most common type of cancer among women. In radiation therapy for breast cancer it is important to prevent damage to normal tissues particularly to lung tissue. In this study, we investigated the incidence of damage in patients with breast cancer by clinical and dosimetric parameters to identify the predictive factors. Materials and methods: An exp...
introduction the gamma knife system is designed solely for non-invasive treatment of brain disorders, and it benefits from stereotactic surgical techniques. dose calculations required in the system are performed by gammaplan code; in this code, brain tissue is considered uniform. in the present study, we evaluated the effect of gamma knife system on the obtained dose through simulating a real h...
the production of colony-stimulating factors (csf) is delicately controlled through a complex network of humoral and environmental factors. we have studied some of the mechanisms which regulate the production of csf as compared to general protein synthesis in the lung tissue ill vitro. when lung tissue from mice was cultured for various times in serum free medium, the first detectable level of ...
Background: Increasing number of patients facing end-organ failure, as well as the therapeutic challenges surrounding allotransplantation, has catalyzed the evolution of tissue engineering and regenerative medicine. The successful recapitulation of development requires choosing an ideal scaffold material as a mediator of biochemical and biophysical signals. The extracellular matrix (ECM) functi...
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