Exam (elaborations)
Generations of CT Scanners questions n answers
- Course
- Institution
Generations of CT Scanners questions n answers
[Show more]
Content preview
Generations of CT ScannersFirst Generation Scanners - correct answer ✔✔1971
Built by EMI
Pencil beam with a single detector
Source and detector were linearly translated to acquire individual measurements
Rotated 1 degree to next angular position to get next set of images
Total scan time about 5 minutes per image (pt motion)
Second Generation Scanners - correct answer ✔✔Fan beam geometry
1975 EMI introduced 30 detector scanner
(complete scan in 20 seconds)
Used Multiple detectors in a straight line
Tube/detector moved across the patient then rotated 5 degrees
Third Generation Scanners - correct answer ✔✔1975
Systems used today are this type
Fan Beam
Multiple detectors along an arc
Tube and detector rotate around the patient
Total scan time faster than 1 second per image
Incorperated SLIP RINGS
Also called rotate rotate scanners
Fourth Generation Scanners - correct answer ✔✔Fan beam
Multiple detectors encircles the patient
Total scan time is faster than 1 second per image
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 $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now