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COMPUTED TOMOGRAPHY PRELIM_QUIZ1 WITH CORRECT ANSWERS RATED 100%.
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COMPUTED TOMOGRAPHY PRELIM_QUIZ1 WITH CORRECT ANSWERS RATED 100%.
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COMPUTED TOMOGRAPHY PRELIM_QUIZ1 WITH CORRECT ANSWERS RATED 100%.Computed Tomography Scan ANS - Previously known as:
a. Computed Axial Tomography (CAT)
b. Computed Transaxial Tomography (CTAT)
c. Computed Reconstruction Tomography (CRT)
d. Digital Axial Tomography (DAT)
CT Scan ANS - It is a method of acquiring and reconstructing the image of a thin cross section on the basis of measurements of attenuation. Its machines uses a combination of X-rays and radiation detectors coupled with a computer to create cross sectional image of any part of the body
Data Acquisition ANS - Refers to scanning the patient
Image Reconstruction ANS - Refers to the processing of the Data
Image Display ANS - Refers to displaying the image
Advantages of CT Scan ANS - 1. It's painless, non-invasive and accurate (unless its angiography)
2. Has the ability to image multiple organs all at the same time
3. Provides very detailed images of many types of tissue as well as the lungs, bones, and blood vessels 4. It's fast and simple; in emergency cases, they can reveal internal injuries and bleeding
5. It's cost-effective imaging tool for a wide range of clinical problems
6. It's less sensitivities to patient movement than MRI
7. Can be performed if you have implants
8. Provides real-time imaging, making it a good tool for guiding minimally invasive procedures such as needle biopsies and needle aspirations. 9. A diagnosis determined by CT scanning may eliminate need for exploratory surgery and surgical biopsy
10. No radiation remains in a patient's body after a CT examination
11. X-rays used in CT scans should have no immediate side effects
Johann Karl August Radon ANS - He introduced the Radon Transformed He demonstrated that the image of a three-dimensional object can be constructed from an infinite number of two-dimensional images of the object
Godfrey N. Hounsfield ANS - He pioneered the CT scanner making him one of the greats in the history of
radiology and medicine.
For his work, he received the Nobel Prize in Physiology or Medicine in 1979
This was remarkable because he had no experience of working in the medical field but was an engineer who hitherto had spent his career developing computers and radar
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