نتایج جستجو برای: ct scan
تعداد نتایج: 180359 فیلتر نتایج به سال:
Background: Human Resources in the health sector not only is the most crucial source in health providing but account for nearly three-quarters of the health sector's costs. The purpose of this study was to estimate the required Human Resources of the CT scan department of the Reza Radiotherapy-Oncology Center based on the workload indicator of staffing needs in 2019. Materials and Methods: Thi...
Abstract Aims and objectives: Pneumothorax is a common finding after trauma and with a wide range of clinical manifestations, from a concealed pneumothorax detectable only by a CT scan accidentally, to a potentially fatal tension pneumothorax. Pneumothorax can gradually progress to tension pneumothorax and become an emergency, consequently, a timely diagnosis is essential. Most traumatic patie...
سردبیر محترم ct scan تنها 13% از کل آزمون های رادیولوژیکی را تشکیل می دهد در حالی که در 70% دوز تجمعی بیماران سهم دارد.1 پژوهش گران برآورد کرده اند که 29000 سرطان آینده ناشی از ct scan های انجام شده در ایالات متحده آمریکا در سال 2007 است.2 دوز تحویلی به اندام های حساس به پرتو بیماران (گناد، چشم، تیرویید و پستان) به دلیل اثرات ژنتیکی و سرطان زای پرتو باعث ایجاد نگرانی جهانی شده است.3 به عنوان مث...
ارزیابی سطح دوز مرجع تشخیصی ناشی از آزمایشات سی‌تی‌اسکن در گروه سنی بزرگ‌سالان در تهران: گزارش کوتاه
Background: Today, a CT scan examination play an important role in disease diagnosis and thus allocates a significant dose of medical X-ray examinations. One of the important principles in the use of ionizing radiations is to observe radiation protection principles. Evaluating patient's absorbed dose and implementing the strategies for reducing dose are prior in safety issues. To achieve this p...
background: computed tomography (ct) scan is one the most useful devices in chest imaging. ct scan can be used in mediastinal abnormality, lungs, and pleural evaluations. according to the high prevalence and different causes of pulmonary nodules, we designed this study to evaluate the prevalence and the types of pulmonary nodules in noncancerous patients who underwent chest multi-detector ct (m...
The interpretation of ultrasonic B-Scan images can be a time consuming process, its success is also very dependant on operator skill sand experience [1]. Removal of the image background will potentially improve its quality and hence improve operator diagnosis. An automatic background noise removal algorithm is proposed enabling the highlighting of defects and aiding the operator in the location...
hepatosplenic candidiasis is a fungal infection, which mostly affects patientswith hematologic malignancies such as leukemia. the pathogenesis of thisinfection is not clear yet, and the liver is the most commonly affected organ.diagnosis of hepatosplenic candidiasis can be only established via biopsy,since computed tomography (ct) scan, ultrasonography, and magneticresonance imaging (mri) yield...
background: this prospective study was conducted to evaluate and compare the efficacies of nasopharyngoscopy and ct scan in the diagnosis of local failure of external beam radiotherapy (ebrt) for nasopharyngeal carcinoma. methods: total 52 patients of histopathologically proven nasopharyngeal carcinoma treated with external beam radiotherapy (ebrt), were included in this study. for every patien...
Primary Hyperparathyroidism is a fairly common disease that is much more predominant in females. Treatment is surgery and includes removing the parathyroid adenoma or the hyperplastic parathyroid glands. Considering the difficulty of this operation procedure, localization test are utilized including ultrasound, MRI, CT scan, Thallium-Technesium subtraction scan, MIBI scan and a series of other ...
Background: Pneumothorax may be associated with penetrating or blunt chest traumas' that need early diagnosis and treatment. Today the diagnosis modalities are CXR and CT-Scan that are not suitable for unstable patients. Chest sonography can be a fast diagnostic method at patient bedside. The purpose of this study was to evaluate the accuracy of bedside ultrasonography in diagnosis of pneumotho...
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