Seminars in ultrasound, CT, and MR
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Over the past 15 years there have been dramatic changes in the approach to imaging acute cervical spine trauma. This article addresses the current thoughts and controversies regarding the most appropriate techniques to evaluate the patient with cervical spine trauma, with an emphasis on the role of computed axial tomography (CT) and magnetic resonance imaging (MRI). The issue of clinical versus radiographic evaluation of low-risk patients is also discussed.
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With recent improvements in ultrasound (US) imaging equipment and refinements in scanning technique, an increasing number of peripheral nerves and related pathologic conditions can be identified. US imaging can support clinical and electrophysiologic testing for detection of nerve abnormalities caused by trauma, tumors, and a variety of nonneoplastic conditions, including entrapment neuropathies. This article addresses the normal US appearance of peripheral nerves and discusses the potential role of US nerve imaging in specific clinical settings. A series of US images of diverse pathologic processes involving peripheral nerves is presented.
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Semin. Ultrasound CT MR · Feb 2000
ReviewTargeted helical CT of the acute abdomen: appendicitis, diverticulitis, and small bowel obstruction.
CT, especially helical CT, provides a fast and reliable modality for evaluation of the patient presenting with acute abdominal pain. Helical CT can provide an accurate diagnosis in the majority of patients and has found great utility in the evaluation of acute gastrointestinal emergencies, including acute appendicitis, diverticulitis, and small bowel obstruction. This article reviews proper helical CT technique, diagnostic imaging findings, and pitfalls of interpretation in evaluation of these acute abdominal disorders.
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Fungal diseases of the paranasal sinuses can be categorized into the invasive and noninvasive varieties. The invasive form has been classified as acute fulminant fungal sinusitis, granulomatous invasive fungal sinusitis, and chronic invasive fungal sinusitis. The noninvasive form can be classified as the fungus ball and the allergic fungal sinusitis. The following review discusses the various types of fungal sinusitis with a special emphasis on the CT and MR imaging features.