AJR. American journal of roentgenology
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AJR Am J Roentgenol · Dec 1995
Pneumatosis intestinalis in adults with AIDS: clinical significance and imaging findings.
The significance of pneumatosis intestinalis in adults with AIDS is unknown. Adults with AIDS are predisposed to pneumatosis intestinalis. The purpose of this study is to determine the clinical significance and to characterize the imaging appearance of this finding in patients with AIDS. ⋯ Pneumatosis intestinalis is a late-stage phenomenon in adult patients with AIDS that characteristically involves the cecum or right colon. Pneumatosis in patients with AIDS may be an indolent abnormality and does not necessarily constitute a surgical emergency or a sign of impending bowel necrosis.
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AJR Am J Roentgenol · Nov 1995
Quantification of pneumothorax size on chest radiographs using interpleural distances: regression analysis based on volume measurements from helical CT.
The aim of this study was to define the relationship between interpleural distance measurements on an erect posteroanterior chest radiograph and pneumothorax size as measured by helical CT in a series of patients. ⋯ This study identified a formula for accurately calculating percentage pneumothorax size as determined by helical CT from an erect posteroanterior radiograph. Using this formula with the clinical status of the patient should more easily identify patients requiring active intervention.
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AJR Am J Roentgenol · Nov 1995
Comparative StudyInformed consent for percutaneous lung biopsy: comparison of two consent protocols based on patient recall after the procedure.
Informed consent is now required for the majority of radiologic procedures, but few studies have evaluated the efficacy of informed consent protocols. We compared our standard consent protocol of obtaining consent prior to percutaneous lung biopsy with a modified protocol by using patients' recall of procedure risks after the biopsy as an indicator of patients' comprehension. ⋯ The standard consent procedure for lung biopsy appears inadequate when patients' recall of procedure risks later is used as a measure of the patients' comprehension. Based on this study, the informed consent process may be improved substantially by teaching patients to recite the procedure risks to the physician as part of the informed consent protocol.