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Post-Test 1: Getting to Know CT || WELL-ENLIGHTENED WITH COMPLETE SOLUTIONS!!

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Wilhelm Conrad Rontgen correct answers Which of the following men was awarded the first Nobel Prize in Physics in 1901? a. Geoffrey Newton b. Godfrey Newbold Hounsfield c. Wilhelm Conrad Rontgen d. Albert von Kolliker 1, 2 & 3 correct answers Which of the following was a reason to develop ...

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  • August 19, 2024
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  • CT
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Post-Test 1: Getting to Know CT || WELL-
ENLIGHTENED WITH COMPLETE SOLUTIONS!!
Wilhelm Conrad Rontgen correct answers Which of the following men was awarded the first
Nobel Prize in Physics in 1901?

a. Geoffrey Newton
b. Godfrey Newbold Hounsfield
c. Wilhelm Conrad Rontgen
d. Albert von Kolliker

1, 2 & 3 correct answers Which of the following was a reason to develop tomographic
imaging techniques?
1. conventional radiographs superimposed anatomy
2. conventional radiographs are limited in their ability to show the difference between tissues
with similar densities
3. physicians wanted to be able to see inside a patient in a manner similar to surgical
exploration

a. 1 & 2
b. 1 & 3
c. 2 & 3
d. 1, 2 & 3

film was used correct answers Which of the following is a characteristic of the tomographic
systems which existed before the first CT scanners?

a. film was used
b. a computer was used to reconstruct the images
c. a detector array was used
d. it was used only for extremity imaging

1, 2 & 3 correct answers Conventional tomography was NOT clinically useful because:
1. the images were often blurry
2. it took too long to make an image
3. the images lacked detail

a. 1 & 2
b. 1, 2 & 3
c. 1 & 3
d. 2 & 3

digital subtraction angiography correct answers CT is commonly referred to as all of the
following names EXCEPT:

a. digital subtraction angiography
b. computed tomography
c. CAT-scan
d. computerized axial tomography

, measure the x-rays that pass through the patient's body correct answers The detectors:

a. shield the patient from the x-rays
b. produce the beam of x-rays
c. increase the x-ray exposure of the film
d. measure the x-rays that pass through the patient's body

2 only correct answers Detectors were incorporated into CT scanner designs to replace film
because detectors:
1. are more sensitive than film
2. converted the x-ray attenuation information into an electrical signal which could be used
by a computer
3. are safer than film

a. 1 & 2
b. 2 only
c. 3 only
d. 1 only

1970s correct answers The first commercial CT scanner was available during the:

a. 1990s
b. 1980s
c. 1960s
d. 1970s

used a pencil beam of x-rays correct answers A first-generation scanner:

a. used a curved array of detectors
b. produced an image in less than 5 seconds
c. used multiple detectors
d. used a pencil beam of x-rays

allows for much faster data collection than using a single detector correct answers A detector
array:

a. is stationary in all scanner designs commercially available today
b. was first seen on third-generation CT scanners
c. rotates around the patient in all scanner designs
d. allows for much faster data collection than using a single detector

have a detector ring which does not rotate correct answers Fourth-generation CT scanners
______________ while second-generation CT scanners do not.

a. use multiple detectors
b. have a detector ring which does not rotate
c. have a rotating ring of detectors
d. apply fan beam geometry

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