نتایج جستجو برای: chest ct
تعداد نتایج: 194602 فیلتر نتایج به سال:
Background: Bismuth composites are new and non-lead shields that are capable of breast dose reduction while preserving image quality. In this study, different percentages of Bismuth were used in designing and constructing polymer composites as breast shields in chest CT. Materials and Methods: Micro particles of Bismuth with a ratio of 1% to 15% in Silicone matrix with two thicknesses were use...
AIM To evaluate the diagnostic sensitivity and accuracy and the cost-effectiveness of this technique in the detection of gastroenteropancreatic carcinoid tumors and their metastases in comparison with conventional imaging methods. METHODS Somatostatin receptor scintigraphy (SRS) was performed in 24 patients with confirmed carcinoids and 7 under investigation. The results were compared with th...
Introduction: Cauda equina secondary to metastatic follicular thyroid cancer of the lumbosacral area is a rare entity. Case Report: We report an unusual case of a 52-year-old male who presented with backache, lower limb weakness, and perianal numbness. A CT-scan of the lumbosacral area showed an enhancing mass at the L4, L5 and S1 vertebrae. Histopathology after excision revealed a metast...
conclusion scout views may be useful in determining dose and image quality in ct scanning; however, it is necessary to first determine the most appropriate scout view for ct scans. background while using the automatic exposure control technique in computed tomography (ct), the scout view determines the radiation dose for the ct scan by taking anatomical morphology into consideration. objectives...
conclusion ct scan is highly accurate in differentiating malignant pleural mesothelioma and metastatic pleural diseases. pleural thickening and thickening of interlobar fissure lead us to the diagnosis of mpm and massive free pleural effusion is more commonly seen in metastatic pleural malignancy. background malignant pleural mesothelioma (mpm) is a rare malignant neoplasm of the pleura that ty...
ABSTRACT Background: While the benefits of Computed Tomography (CT) are well known in accurate diagnosis, those benefits are not risk free. CT is a device with higher patient dose in comparison with other conventional radiological procedures. Is the reduction of exposures by requiring optimization of CT procedures [a principle concern in radiological protection]? In this study, the radiatio...
PURPOSE The aim of this study was to assess the role of pre-operative chest computed tomography (CT) compared with abdominopelvic CT (AP-CT) and chest radiography (CXR) for detecting pulmonary metastasis in patients with primary colorectal cancer (CRC). METHODS We retrospectively analyzed the data of 619 patients with primary CRC who simultaneously received a preoperative chest CT (chest CT g...
Procedure Appropriateness Category Relative Radiation Level CTA chest with IV contrast Usually Appropriate ☢☢☢ US echocardiography transesophageal May Be Appropriate O MRA chest without IV contrast May Be Appropriate O MRA chest without and with IV contrast May Be Appropriate O CT chest without IV contrast May Be Appropriate ☢☢☢ CT chest with IV contrast Usually Not Appropriate ☢☢☢ Aortography ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید