Exam (elaborations)
CTMR 403 Questions Exam And Accurate Answers
- Course
- Institution
CTMR 403 Questions Exam And Accurate Answers ...
[Show more]
Content preview
CTMR 403 Questions Exam AndAccurate Answers
165 Answer How many questions is the ARRT CT boards exam?
Computed Tomography (CT) Answer The radiological society of North America's
established term for the radiographic technique discovered by hounsfield that produces
an image of a detailed cross-section of tissue
superimposition Answer what issue from conventional radiography did CT overcome?
cross-sectional; 3-D Answer CT differs from conventional radiography in many ways:
-shows _____-________ (trans-axial) views of patient anatomy
-shows _-_ images that are computer generated with use of the trans-axial data set
-superimposition
-contrast
-subject contrast Answer CT's goal is to overcome the previously limitations by:
-minimizing _____________
-improving image ______
-recording very small differences in ________ _______
godfrey Newbold Hounsfield Answer Discovered that measurements of x-rays passing
through an object from all directions could be formed into a 3-D image
allan macleod cormack Answer developed solutions to the mathematical problems that
plagued early CT development
dr. robert ledley Answer -employed as a professor of radiology, physiology, and
biophysics at Georgetown University
-developed the first whole-body CT scanner in 1974
1975 Answer Dynamic spatial reconstructor (DSR) is installed for dynamic volume
scanning at Mayo Clinic
1983 Answer U.S. Food and Drug Administration approves electron beam CT (EBCT)
scanner
, 1989 Answer first report of practical spiral CT scanner was presented at the
Radiological Society of North America (RSNA) meeting in Chicago
1998 Answer Multi-slice CT introduced at RSNA meeting
generation Answer term used to refer to the method scanning in computed tomography
first- seventh generations Answer How many generations of CT scanners have been
released?
first generation Answer Identify type of generation:
-singe detector
-x-ray tube and detector rotate 180 degrees using a pencil beam geometry
second generation Answer identify type of generation:
-detector array
-x-ray tube and detector rotate 180 degrees using a small fan beam geometry
third generation Answer identify type of generation:
-detector array
-x-ray tube and detector rotate 360 degrees using a wider fan beam geometry
-fan beam geometry
3rd Answer which CT generation design is most commonly used today?
data acquisition, image reconstruction, image display (manipulation, storage,
recording, and communication) Answer 3 steps of CT image formation process
data acquistion Answer -refers to the collection of x-ray transmission measurements
from the patient
-special electronic detectors measure the attenuation of the x-ray beam as it passes
through the patient
straight line; volume scanning; spiral/helical Answer -the first CT scanners required the
x-ray tube and detectors to move in a ________ ___ across the patient's head. (going from
left to right, rotate 1 degree, then move from right to left; repeated for 180 degrees and
process termed translate-rotate-stop-rotate or scanning)
-more efficient schemes used today for patient scanning involving _______ _______ and
______/________
slice by slice Answer -the x-ray tube rotates around the patient and collects data from
the first slice
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 Zayla. 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)
75619 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now