Prepcat (brand name Lafayette) is a barium sulfate suspension for computed tomography examinations of the gastrointestinal (GI) tract. The dosage and application depend on the specific procedure.
UPPER G.I. OPACIFICATION: The patient should drink 300 mL of ready-to-use Prepcat approximately 2 hours before the CT scan and an additional 300 mL approximately 15 minutes prior to examination.
If rapid upper gastrointestinal tract transit is desired, administer the product chilled.
TOTAL BOWEL OPACIFICATION: The patient should drink 300 mL the night preceding the examination, 300 mL two hours prior to the examination and 300 mL approximately 15 minutes prior to examination.

The basis of pulmonary scintigraphy is the detection of gamma rays emitted from the lung after administration of a radioactive tracer.
See Lung Scintigraphy.

See also Aerosol Ventilation Scintigraphy, Gas Ventilation Scintigraphy, Pulmonary Perfusion Scintigraphy, Computed Tomography Pulmonary Angiography and Lung Imaging.

Reno-60® is radiopaque contrast agent with a wide range of indications. Reno-60 should be at body temperature when injected and may need to be warmed before use. Following intravascular injection, iodinated contrast materials are transported through the bloodstream to the kidneys and excreted by glomerular filtration.

A slice is a tomographic section of an object. A slice is defined by position and thickness; each slice is divided into a matrix of voxels. In computed tomography, a motorized table slips the patient through the gantry and slices are made when the x-ray tube rotates in a circle around the patient.

Syringeless CT power injectors (also called pressure injectors) have been developed as a solution to reduce contrast fluid waste. The Joint Commission does not allow the reuse of unused cans from disposable syringes, so the syringeless option allows facilities to use contrast media as efficiently as possible.
A syringeless CT (computed tomography) contrast media injector permits delivery to be made directly from standard contrast media bottles, featuring multi-dosing and programmable automatic saline flush. This higher loading capacity for contrast agent ( up to two contrast bottles or 1000 ml) and a bag of saline at initial setup, enables to perform multiple contrast enhanced CT scans without reloading contrast agent; resulting in increased efficiency and less waste.

See also Single-Head Contrast Media Injector, Dual-Head CT Power Injector, CT Power Injector, Multi-Head Contrast Media Injector.