Radiology
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Comparative Study
Peripheral lung cancer: screening and detection with low-dose spiral CT versus radiography.
To compare low-dose spiral computed tomography (CT) with radiography of the chest for the screening and detection of small peripheral lung cancers in a high-risk population. ⋯ Low-dose spiral CT was superior to chest radiography in the screening and detection of peripheral lung cancer in high-risk individuals. Further large-scale studies are warranted, however, to clarify the efficacy and cost-effectiveness of low-dose spiral CT in a randomized, controlled population.
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To determine the frequency of the computed tomographic (CT) pattern of nonaneurysmal perimesencephalic subarachnoid hemorrhage in the setting of ruptured posterior fossa aneurysms. ⋯ Because ruptured posterior fossa aneurysms manifest with the nonaneurysmal pattern of hemorrhage in approximately 10% of cases, a high degree of suspicion should be maintained even if the pattern of subarachnoid hemorrhage suggests a nonaneurysmal origin and clinical symptoms are mild.