Journal of computer assisted tomography
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J Comput Assist Tomogr · Nov 2001
Case ReportsMalignant epithelioid renal angiomyolipoma in a patient with tuberous sclerosis.
A21-year-old man with a history of tuberous sclerosis and hematuria was found to have multiple renal angiomyolipomas and a highly malignant epithelioid renal angiomyolipoma. Radiologic and pathologic findings are described.
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J Comput Assist Tomogr · Nov 2001
Assessing the adequacy of peripherally inserted central catheters for power injection of intravenous contrast agents for CT.
The purpose of this work was to determine the tolerance of silicone peripherally inserted central catheters (PICCs) of different sizes and lengths to power injection of contrast materials at flow rates suitable for CT studies. ⋯ The 3F catheters were unsuitable for power injection for CT studies because they could not accommodate adequate flow rates. The 4F single-lumen and 6F double-lumen catheters withstood flow rates that were marginally adequate for CT studies. The 5F single-lumen and 7F double-lumen PICCs tolerated peak flows and pressures well within the range necessary to allow power injection of contrast materials for CT studies. For each size of PICC, the 35 cm length withstood higher flow rates than the 45 cm length before failure.