Exam (elaborations)
Imaging Equipment: Chapter 28- Computed Tomography (CT) fully solved
- Course
- Institution
Imaging Equipment: Chapter 28- Computed Tomography (CT) fully solved
[Show more]
Content preview
Imaging Equipment: Chapter 28-Computed Tomography (CT)
what is performed by moving a tube and an IR around a point of focus? - correct answer ✔✔computed
tomography
what is considered axial tomography because the plane of the image is parallel with the long axis of the
body? - correct answer ✔✔conventional tomography
what is it called when images are produced perpendicular with the long axis of the body and is also
called transverse tomography? - correct answer ✔✔transaxial tomography
why is it called "computed tomography"? - correct answer ✔✔because it was created by a computer
who developed computed tomography? - correct answer ✔✔an engineer named Godfry Newbold
Hounsfield
when and where did Hounsfield develop computed tomography? - correct answer ✔✔in England in the
late 1960s
when was the first CT brain machine used? - correct answer ✔✔used in clinical studies in 1971
when was the CT scanner able to be used diagnostically? - correct answer ✔✔in the 1980s with the
invention of supercomputers
what generation of CT scanners used a pencil shaped x-ray beam and had 1 single detector? - correct
answer ✔✔first generation
what generation of CT scanners had a fan shaped beam with a multiple detector array? - correct answer
✔✔2nd generation
, what are the advantages and disadvantages between the 1st and 2nd generation CT scanners? - correct
answer ✔✔advantage- it was much faster
disadvantage- increased scatter radiation
what generations of CT scanners used linear array? - correct answer ✔✔first and second
what generation of CT scanners used curvilinear array? - correct answer ✔✔3rd and on
what generation of CT scanners operated in the rotate only mode with a fan x-ray beam and multiple
detector array revolving concentrically around the patient? - correct answer ✔✔3rd generation
what is a disadvantage of the 3rd generation CT scanner? - correct answer ✔✔it has a ring artifact
what is a ring artifact? - correct answer ✔✔happens when one detector is defective and a ring is noticed
on the image
what generation of CT scanners has rotate-stationary configuration and has detectors that are stationary
all around the patient and the tube rotates? - correct answer ✔✔4th generation
what generation of CT scanners is the fastest of all and may scan a whole body part in seconds? - correct
answer ✔✔5th generation
what generation of CT scanners utilizes many rows of detectors and constant movement of the tube
along with advanced interpolation and extrapolation algorithms to produce images? - correct answer
✔✔5th generation
what uses slip ring technology for continuous movement of the x-ray tube and is also called multi-slice or
helical tomography? - correct answer ✔✔5th generation CT scanners
what are the two processes for reconstruction? - correct answer ✔✔interpolation and extrapolation
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now