AJR. American journal of roentgenology
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The purpose of our study was to assess the normal range of CT measures of emphysema and air trapping in young men with normal lung function. ⋯ We report the normal range of CT values for young male subjects with normal lung function, which is important to define pulmonary disease.
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AJR Am J Roentgenol · Aug 2012
ReviewPancreatic imaging mimics: part 1, imaging mimics of pancreatic adenocarcinoma.
The purpose of this article is to describe the imaging features of diseases that may closely simulate pancreatic adenocarcinoma, either radiologically or pathologically. ⋯ Neoplastic and inflammatory diseases that can closely simulate pancreatic adenocarcinoma include neuroendocrine tumor, metastasis to the pancreas, lymphoma, groove pancreatitis, autoimmune pancreatitis, and focal chronic pancreatitis. Atypical imaging findings that should suggest diagnoses other than adenocarcinoma include the absence of significant duct dilatation, incidental detection, hypervascularity, large size (> 5 cm), IV tumor thrombus, and intralesional ducts or cysts.
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AJR Am J Roentgenol · Aug 2012
Comparative StudyImproved image quality in dual-energy abdominal CT: comparison of iterative reconstruction in image space and filtered back projection reconstruction.
The purpose of this study is to investigate whether an iterative reconstruction in image space (IRIS) algorithm improves the image quality of dual-energy CT abdominal examinations performed during the hepatic arterial phase. ⋯ Compared with standard FBP reconstruction, an IRIS algorithm enables significant reduction of image noise and improvement of image quality and has the potential to decrease radiation exposure during contrast-enhanced dual-energy CT abdominal examination.
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AJR Am J Roentgenol · Aug 2012
Performing fluoroscopically guided interlaminar lumbar epidural injections.
The purpose of this video article is to provide a step-by-step guide for performing fluoroscopically guided interlaminar lumbar epidural injections, emphasizing the anatomy of the epidural space, anatomic landmarks to aid in needle placement, techniques, and ways of minimizing potential complications. ⋯ Low back pain and radiculopathy afflict millions of people each year with enormous socioeconomic ramifications and individual disability. This condition has a prevalence of at least 13% and is the second most common symptom-related cause for office visits in the United States. Epidural injections have become the most commonly performed intervention in the management of chronic low back pain in the United States.
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AJR Am J Roentgenol · Aug 2012
Use of a simulation laboratory to train radiology residents in the management of acute radiologic emergencies.
Simulation laboratories use realistic clinical scenarios to train physicians in a controlled environment, especially in potentially life-threatening complications that require prompt management. The objective of our study was to develop a comprehensive program using the simulation laboratory to train radiology residents in the management of acute radiologic emergencies. ⋯ Simulation laboratories can be used to teach crisis management and crisis resource management for radiology residents and should be part of the education toolbox. Defined objectives lead to a comprehensive course dealing with the management of acute radiologic emergencies. Such programs can improve the role of radiologists as members of the health care team.