Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes
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To determine which of several variables--age, serum level of prostate-specific antigen (PSA), findings of transrectal ultrasonography (TRUS) and findings of digital rectal examination (DRE)--are the best predictors of positive prostate biopsy results. ⋯ Men in whom there is a clinical concern for prostate cancer should undergo prostate biopsy if there is any elevation of age-specific PSA, particularly if the findings of TRUS are also abnormal. Because DRE alone was not predictive of biopsy outcome, algorithms for prostate cancer detection that rely on abnormal DRE results to identify men who should undergo biopsy will miss a significant number of cancers.
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To assess the prevalence of high-attenuation mucous plugs observed on chest computed tomography (CT) scans in patients with allergic bronchopulmonary aspergillosis. ⋯ High-attenuation mucous plugs occur in approximately one quarter of patients with allergic bronchopulmonary aspergillosis and may be more common in patients with unilobar plugging.
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Randomized Controlled Trial Comparative Study Clinical Trial
A prospective randomized clinical trial comparing two film-screen systems for chest radiography.
To compare conventional and asymmetric film-screen chest radiography systems in a prospective, randomized trial. ⋯ In general, the asymmetric system was superior for assessing mediastinal features and inferior for assessing the lateral subpleural zones in the posteroanterior radiographs. The asymmetric system was superior for assessing retrosternal lung markings and inferior for assessing fissures in the lateral radiographs. The results for the posteroanterior radiographs were consistent with the results of nonblinded studies reported elsewhere.