نتایج جستجو برای: x ray imaging
تعداد نتایج: 1064718 فیلتر نتایج به سال:
Crystal-based X-ray interferometry (CXI) detects phase shifts by using the superposition of waves, and its sensitivity is highest among other phase-detecting methods. Therefore, phase-contrast imaging (PCXI) CXI has density resolution PCXI methods enables fine, non-destructive observation with a below sub-mg/cm3. It thus been applied in wide range fields, including biology, medicine, geology, i...
isolated third nerve palsy develops in numerous intracranial pathologies such as closed head trauma, tumor, and aneurysm. this report describes a 61 years old female with an abrasion on the left forehead and ptosis of the left eye. initial computed tomography did not reveal any causative cerebral and vascular lesions or orbital and cranial fractures. high-resolution and multi-axial enhanced mag...
how trustworthy are clinical examinations and plain radiographs for diagnosis of scaphoid fractures?
conclusions a clinical examination combined with a plain radiograph should be considered to improve the diagnostic precision for patients presenting with scaphoid fractures in an emergency department. in this way, both overtreatment and undertreatment of patients can be avoided. results scaphoid tubercle tenderness had a sensitivity of 95.23% and a specificity of 74.07% in the diagnosis of scap...
Todays, X-ray imaging system for cargo and containers inspecting of country gates are highly regarded. The dual energy imaging system due to the use of two beams with different spectrums can extracts more information about the materials in cargo than the conventional X-ray imaging system. Since the X-ray beam is an ionizing radiation, three parameters should be taken into account including just...
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