[Anesthesia in surgery].
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Anesthesia, Conduction↗
Biomedical subjects
U Straubel
Publications and source records attributed to U Straubel.
[Puncture, catheterization and drainage. 1].
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Catheterization, Central Venous↗
[Puncture, catheterization and drainage. 2].
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Catheterization, Peripheral↗
[Quality control in computed tomography].
In comparison to the constancy checks in conventional roentgenography, quality control in computed tomography (CT) should be limited to a few simple but essential checks for image quality and radiation burden. These requirements, however, can only be fulfilled in part, because of the complexity of CT systems. Possible parameters are: water and air values, pixel noise/contrast resolution, spatial resolution, artifacts, homogeneity, contrast scale/tube voltage, slice thickness, positioning accuracy, image quality of the topogram, radiation dose and film imaging. With a simple test program, comprising 4 CT-scans and a camera test image that is presently being tested, most of the mentioned quantities can be checked.
Quality Control↗