CT CHAP 2 con't Word Scramble
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| Question | Answer |
| What is the average of kV in CT? | 120-140kV |
| What does using a high kV do for the life of the tube? | Reducing heat load= extending life |
| What does high kV do for the patient? | Hardens the beam so that it reduces patient dose. |
| How does having high kV reduce heat? | by being able to use a lower mA. |
| What are some cooling systems that could be located in the gantry? | blowers, filters, or devices that perform oil-to-air heat exchange |
| What is the anode made of and the atomic number? | Tungsten 74 |
| How do you we reduce patient dose and minimize image artifact, improving image quality? | by using a compensating filter to shape the xray beam |
| What do collimators do? | restrict xray beam and reduce scatter |
| What is a common filter? | Bow tie, because of its shape |
| What is the range of sizes of collimators? | 0.5 - 10 mm |
| Describe what predictor collimation. | Located below the patient, shaped the beam after passing thru patient, before hitting the detector, commonly referred to as post patient collimation. |
Created by:
brandyellen
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