Radiología
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Takayasu arteritis is a chronic inflammatory obliterative disease of the great vessels that mainly affects the aorta and its primary branches. In its early phase, the clinical presentation and laboratory tests are nonspecific, so accurate diagnosis frequently depends on imaging studies. The aim of this study was to review the main features of Takayasu's arteritis and the usefulness of different noninvasive imaging techniques in the early diagnosis and follow-up of this entity. ⋯ Noninvasive imaging techniques are fundamental in the early diagnosis of patients with Takayasu's arteritis. CT angiography and MR angiography provide additional information about the inflammatory activity of the disease.
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To evaluate the feasibility of small-bore chest tube placement to treat pneumothorax caused by percutaneous procedures. ⋯ Small-bore chest tube placement is the treatment of choice for iatrogenic pneumothorax greater than 20% or less than 20% when symptomatic or occurring in patients with emphysema. The procedure is easy, effective, and well tolerated; furthermore, it shortens the hospital stay. The effectiveness of the procedure makes it possible to safely perform percutaneous procedures on patients with emphysema or difficult lesions and to finish an interventional procedure when pneumothorax occurs.
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To evaluate the role of MRI in the early diagnosis and therapeutic assessment of pyomyositis. ⋯ Pyomyositis is a primary bacterial infection of skeletal muscle. In recent years pyomyositis has increasingly been diagnosed even in patients without predisposing factors. There is a male predominance. Imaging is essential for the diagnosis of the pyomyositis, and radiologists play a crucial role in the early diagnosis of this infection. MRI is the imaging method of choice for characterizing the infection.
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This paper describes the specific tasks of the neuropsychologist in a medical imaging department during the study of the relations between the brain and behavior. The neuropsychologist's role as a member of a multidisciplinary team centers on paradigm design (motor, visual, language, memory, etc.), supervising subjects' (patients' or controls') behavior during functional magnetic resonance acquisition, and interpreting the results. Thus, it is essential for the neuropsychologist to know the characteristics, possibilities, and limitations of the imaging technique as well as aspects directly related to neuropsychology, such as cognitive processes and their components. We also introduce some common concepts in functional magnetic resonance and review some of the paradigms that are most frequently employed in clinical concepts.