Journal of thoracic imaging
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Review
Computed tomography screening for lung cancer: a survey of society of thoracic radiology members.
This study aimed to determine the availability, attributes, and hindrances of current and developing US lung cancer screening programs. ⋯ In our sample, we found that a majority of respondents were engaged in LDCT screening programs. Growth of such programs is expected in the coming years. Finalizing screening guidelines and insurance reimbursement will likely remove barriers that inhibit further growth of LDCT lung cancer screening programs.
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Aspiration is a common but underrecognized clinicopathologic entity, with varied radiographic manifestations. Aspiration represents a spectrum of diseases, including diffuse aspiration bronchiolitis, aspiration pneumonitis, airway obstruction by foreign body, exogenous lipoid pneumonia, interstitial fibrosis, and aspiration pneumonia with or without lung abscess formation. Many patients who aspirate do not present with disease, suggesting that pathophysiology is related to a variety of factors, including decreased levels of consciousness, dysphagia, impaired mucociliary clearance, composition of aspirate, and impaired host defenses. In this pictorial essay, we will review the different types of aspiration lung diseases, focusing on their imaging features and differential diagnosis.
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Practice Guideline
ACR Appropriateness Criteria® nontraumatic aortic disease.
The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed every 3 years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer-reviewed journals and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances in which evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment. In this document we provided guidelines for use of various imaging modalities for assessment of nontraumatic aortic diseases.
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Fibrin sheaths may develop around long-term indwelling central venous catheters (CVCs) and remain in place after the catheters are removed. We evaluated the prevalence, computed tomographic (CT) appearance, and clinical associations of retained fibrin sheaths after CVC removal. ⋯ Retained fibrin sheaths were seen on CT in a substantial minority of patients after CVC removal; nearly half of them were calcified. They were more common in women and associated with venous occlusion.