MODULE 1: Introduction to Digital Radiography

Question 1

What kind of Radiography uses film & intensifying screen in the image formation process and involves automatic & manual processing in the darkroom

Answer 1

Conventional Radiography

Question 2

It allows text, photos, drawings, animations & video to appear on the internet

Answer 2

Digital Imaging

Question 3

Any imaging acquisition that produces an electronic image that can be viewed & manipulated on a computer

Answer 3

Digital Imaging

Question 4

The first CT unit was built by?

Answer 4

Godfrey Hounsfield

Question 5

It took how how long for the CT unit to acquire a single slice of information?

Answer 5

several hours

Question 6

First commercial CT scanners were built to image what?

Answer 6

the head only

Question 7

What digital imaging was introduced commercially for health care use in the early 1980s?

Answer 7

Magnetic Resonance Imaging (MRI)

Question 8

Who published the theory behind MRI in March 1973?

Answer 8

Paul C. Lauterbur

Question 9

What is the study of moving body structures?

Answer 9

Fluoroscopy

Question 10

What modality occurs when a continuous x-ray beam that is passed through the body part being examined?

Answer 10

Fluoroscopy

Question 11

Who introduced the concept of moving images digitally in his experimentation with Teleradiology

Answer 11

Dr. Albert Jutras (Canada, 1950s)

Question 12

What was introduced commercially in the US in 1983 by Fuji Medical Systems?

Answer 12

Computed Radiography

Question 13

What is a digital acquisition modality that uses storage phosphor plates to produce projection images and is a Cassette-based DR (Digital Radiography)

Answer 13

Computed Radiography

Question 14

True or False

Coventional Radiography uses film and intensifying screens in the image formation process

Answer 14

TRUE

Question 15

He developed a mechanism to encode spatial information into NMR signal using magnetic field in September 1971

Answer 15

Paul C. Lauterbur

Question 16

It uses an x-ray absorber material coupled to a flat panel detector(FPD) or a charged coupled device (CCD) to form the image

Answer 16

Digital Radiography

Question 17

Direct capture devices converts the incident x-ray energy directly into an?

Answer 17

Electrical Signal

Question 18

Indirect capture DR devices absorbs x-rays and converts them into _______ then converted into an _________ signal?

Answer 18

Light, electrical

Question 19

What does PACS stand for?

Answer 19

PICTURE ARCHIVAL AND COMMUNICATION SYSTEM

Question 20

What does DICOM stand for?

Answer 20

DIGITAL IMAGING AND COMMUNICATIONS IN MEDICINE

Question 21

Early PACS was developed by the?

Answer 21

U.S. Military

Question 22

What does PSP stand for?

Answer 22

Photostimuable Phosphor

Question 23

It is also sometimes reffered as Daylight Processing?

Answer 23

Computed Radiography