CT Equipment

5. Computer that serves as a digital post-processing station or an image review station.
7. Radiographic examination that displays sectional anatomic images in axial, sagitall, or coronal planes.
9. Similar to general radiographic tube in a construction and operation.
12. An individual matrix box, each pixel is assigned a CT number.
15. Technique used to view vessels as demonstrated in CT angiography.
18. Replaced the high tension cables and allow for continous rotation of the x-ray tube, which when combined with patient movement through the ganry acquired data in a helical or spiral fashion.
19. Central opening in the gantry
21. Section of the object that is being scanned.
22. Computer workstation a setup in workstation arre situated in other location for us by the radiologist or the technologist .
23. A ratio that reflects the relationship between table spped and slice thickness.
24. Refers to acquistion of a volume of CT data.
25. Undesirable feature or density in an image not representative of anatomy
26. Electronically linked to the ganrey for controlled movement during the can. pt. anatomy with the aperture is the area being scanned at that time.

1. Refers to the range of the CT number that are displayed as shades of gray.
2. image of a CT examination that is used to plan the range of the scan; depending on the vendor, it may be called a topogram/scout.
3. Allows the technologist to control the parameters of the examination.
4. Consists of the x-ry tube, detector array and collimations.
6. Method by which images acquired in the axial plane may be reconstructed in the coronal or sagittal plane.
8. Series of rows and colums (of pixels) that give form to the digitial image.
10. Solid state and composed of photodiodes coupled with scintillation crystal materal such as ocide ceramic crystal, or cadmium tungstate.
11. to reduce patient dose and improves image quality.
13. Number that represents the attenuation value for each pixel, relative to water.
14. Window level-controls image brightness or deternines the CT number that is the center of he window width.
16. predetermined for each producure includes factors such as kilovoltage milliamperage, pitch, field of view. slice thickness, table indexing, reconstruction algorithms, and display window.
17. Adjustment of the window level and window width (brightness and image contrast) by the user.
20. Two types of highly sophisticated software- one for the operating system and one for applications