Computed tomography (CT) is commonly used in patients suspected of having a mediastinal mass or vascular abnormality (e.g., an aortic aneurysm). In general, CT is performed in two situations. First, in patients with a mediastinal abnormality visible on plain radiographs,…
S piral (helical) computed tomography (CT) allows the entire chest to be imaged in a few seconds or less (i.e., during a single breath hold), with volumetric acquisition of scan data. Two- and three-dimensional reformations may be performed if desired.…
Spills of Radioactive Materials Accidental spillage of radioactive material is rare; however, spills may occur in the laboratory, in public areas such as facility hallways, in elevators, or in any hospital room or ward through contamination by patient body fluids.…
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This appendix is provided as a guide to the technical aspects of various imaging procedures. Some of the less common procedures have not been included, and the procedures described herein may need to be adjusted, depending on the equipment available…
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