نتایج جستجو برای: x ray computed tomography
تعداد نتایج: 835919 فیلتر نتایج به سال:
Esophageal duplication cyst is a rare congenital foregut anomaly. Making a definite diagnosis is difficult preoperatively, although various imaging techniques can help to localize these lesions and exclude other causes. Here we present a patient who had an esophageal duplication cyst with infection, in which its signs on chest x-ray, computed tomography (CT), and barium swallow examination are ...
Introduction: The basis of image formation in Computed Tomography (CT) lies in the x-ray linear attenuation coefficient of the scanned material. Compton scattering and photoelectric effect are the dominant interactions of the x-ray photons with the subject, in the range of diagnostic radiology. These two coefficients are important in tissue characterization by Dual-Energy CT (D...
ABSTRACTNeuroimaging allows noninvasive evaluation of the anatomy, physiology, and function of the brain. It is widely used for diagnosis, treatment planning, and treatment evaluation of neurological disorders as well as understanding functions of the brain in health and disease. Neuroimaging modalities include X-ray computed tomography (CT), magnetic resonance imaging (MRI), single photon emis...
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