lesson 4

Question 1

refers to the specialized techniques and instrumentation used to create images or information of the human body for clinical purposes or medical science

Answer 1

medical imaging

Question 2

is the process of examining and passing a judgment on the appropriateness or level of quality standards

Answer 2

Quality evaluation

Question 3

most important basic distinction in evaluation types is

Answer 3

formative and summative evaluation

Question 4

The concept of information entropy was introduced by Claude Shannon in BLANK paper. “A Mathematical Theory of Communication

Answer 4

1948

Question 5

In information theory, the entropy of random variable is the average level of “ information”, “surprise”, or “uncertainty” inherent in the variable’s possible outcomes.

Answer 5

Entropy in Statistics

Question 6

is the discipline that concerns the collection, organization, analysis, interpretation and presentation of data.

Answer 6

Statistics

Question 7

is the randomness collected by an system or application for use in cryptography or other uses that require random data. This randomness is often collected from hardware sources, either pre-existing ones such as mouse movements or socially provided randomness generators.

Answer 7

Entrophy

Question 8

is a process used to encrypt a word, a number in a particular code or pattern based on some set of rules

Answer 8

Coding

Question 9

• is process to decrypt the pattern into its original form from the given codes
• is the ability to break the secret code

Answer 9

Decoding

Question 10

a dramatic change in form or appearance

Answer 10

Transformation

Question 11

Refers to handling images by using the computer. This processing includes many types of techniques and operations such as image gaining, storage, presentation, and communication.

Answer 11

Medical Imaging Processing

Question 12

Iterative reconstruction refers to iterative algorithms that reconstruct 2D and 3D images in certain imaging techniques. For example, in computed tomography, an image must be reconstructed from projections of an object.

Answer 12

Image Reconstruction

Question 13

is the process of removing noise from a signal

Answer 13

Noise reduction

Question 14

Is minimizing the size in bytes of a graphics file without degrading the quality of the image to an unacceptable level. The reduction in file size allows more images to be stored in a given amount of disk or memory space

Answer 14

Image Compression

Question 15

The ability of computer systems or software to exchange and make use of information

Answer 15

Interoperability

Question 16

Radiology was formed in 1998 to address interoperability and information-sharing issues that impact the quality of care in medical imaging. It has developed and documented standards-based solutions to these problems and organized testing and education to foster their adoption

Answer 16

IHE (INTEGRATING the HEALTHCARE ENTERPRISE)

Question 17

Pass (a liquid, gas, light, or sound) through a device to remove unwanted material. “the patient is hooked up to a dialysis machine twice a week to filter out the cholesterol in the blood”

Answer 17

Filtering

Question 18

created by the energy savings trust to address Thermal Bridging performance in SAP calculations for build homes

Answer 18

Construction and Enhancement

Question 19

acquires the image and then processes, archives, and displays it very differently from film-radiography

Answer 19

Digital radiography

Question 20

• the term that was used to reflect exposure to the radiographic film
• the degree of overall blackening from the deposit of black metallic silver in the film emulsion as a result of exposure

Answer 20

Density

Question 21

Four primary image quality factors:

Answer 21

• Image receptor exposure
• contrast
  (are photographic or visibility of detail quality factors)
• Spatial resolution
• distortion
  (are geometric quality factor)

Question 22

The majority of displays used in radiology today are liquid crystal display (LCDs) backlit with cold-cathode fluorescent lamps (CCFLs). New display options include light emitting diode (LED) – backlit displays.

Answer 22

Medical Image Displaying

Question 23

In medical imaging, many applications require visualization and analysis of three-dimensional (3D) objects . Visualization is the process of exploring, transforming , and view data as images to gain understanding and insight into the data, which requires fast interactive speed and high image quality

Answer 23

Medical Image Visualization

Question 24

Paper we discuss the impact of using algorithms for dictionary learning to build adaptive and sparse representations of medical images

Answer 24

Medical Image Representation

Question 25

is a computer–generated environment with scenes and objects that appear to be real, making the user feel they are immersed in their surroundings. This environment is perceived through a device known as a Virtual Reality headset or helmet.

Answer 25

Virtual Reality Technology