Radiology Quiz 1

Question 1

What is radiology?

Answer 1

Branch of medicine concerned with radiant energy and radioactive substances including x rays, ionizing radiation, radioactive isotopes and the application to prevent, diagnose, and treat.

Question 2

What is another term for medical/diagnostic imaging?

Answer 2

Radiology is also referred to as medical/diagnostic imaging.

Question 3

What modalities are included in radiology?

Answer 3

Ultrasound, MRI, and PET scan.

Question 4

What is musculoskeletal imaging?

Answer 4

A subspecialty of radiology concerned with the diagnostic evaluation of the musculoskeletal system.

Question 5

What tissues can musculoskeletal imaging image?

Answer 5

All tissues, not only bone.

Question 6

What was musculoskeletal imaging previously known as?

Answer 6

Orthopedic radiology.

Question 7

What does ALARA stand for?

Answer 7

As low as reasonably achievable.

Question 8

What is a radiograph?

Answer 8

An x-ray film containing an image of an anatomic part of a patient.

Question 9

What are the requirements for a radiograph?

Answer 9

1. X ray beam source 2. A patient 3. X ray film or other image receptor.

Question 10

What are the three classes of image receptors?

Answer 10

Film radiograph, fluoroscopic imaging, computed.

Question 11

What is radiation?

Answer 11

The energy transmitted through space or matter, differing from mechanical, electrical, thermal, nuclear, and electromagnetic.

Question 12

What is an x-ray?

Answer 12

A form of ionizing electromagnetic radiation similar to visible light but shorter in wavelength.

Question 13

What determines the shade of gray that represents anatomy in x rays?

Answer 13

The molecular interaction of x rays.

Question 14

What is radiodensity?

Answer 14

Combination of physical qualities of an object that determine how much radiation is absorbed from the x ray beam.

Question 15

What does radiolucent mean?

Answer 15

Transparent to x rays.

Question 16

What does radiopaque mean?

Answer 16

Opaque to x rays.

Question 17

What does radiodense mean?

Answer 17

X rays will not pass through.

Question 18

What is radiodensity determined by?

Answer 18

Composition and thickness.

Question 19

What affects the thickness and silhouette of a tissue on a radiograph?

Answer 19

Angles of projection.

Question 20

What is the thinnest curved plane parallel to the image receptor?

Answer 20

Curved plane parallel to image receptor.

Question 21

What is the thickest curved plane perpendicular to the image receptor?

Answer 21

Curved plane perpendicular to image receptor.

Question 22

What is a reminder regarding imaging tests?

Answer 22

Not always the most expensive test gives you the best answer.

Question 23

What does ‘one view is no view’ mean?

Answer 23

Critical diagnostic information is missing if only 1 radiograph is available.

Question 24

What is the upright position?

Answer 24

Seated or standing.

Question 25

What is the seated position?

Answer 25

Sitting up still upright.

Question 26

What is the supine position?

Answer 26

Laying on back.

Question 27

What is the prone position?

Answer 27

Laying on stomach.

Question 28

What is the erect/weight bearing position used for?

Answer 28

Used to clearly establish that the joints are under effects of gravity.

Question 29

What is the recumbent position?

Answer 29

Lying down in any position.

Question 30

What is the Trendelenburg position?

Answer 30

Lying on back with body tilted so that the head is lower than the feet.

Question 31

What are the two markers on each film?

Answer 31

Patient identification and anatomic side markers.

Question 32

What is the anatomical position?

Answer 32

Do not reorient films, always view as if in anatomical position.

Question 33

What are the four image quality factors?

Answer 33

Density, contrast, detail, and distortion.

Question 34

What does density refer to in imaging?

Answer 34

The amount of blackening in the image, controlled by adjusting current and exposure time.

Question 35

What is detail in imaging?

Answer 35

Also referred to as sharpness, resolution, and definition.

Question 36

What is contrast in imaging?

Answer 36

The difference between adjacent densities.

Question 37

What is distortion in imaging?

Answer 37

The difference between the actual object and the recorded image.

Question 38

What type of contrast is used in skeletal radiographs?

Answer 38

High contrast.

Question 39

What type of contrast is used to image the heart and lungs?

Answer 39

Low contrast.

Question 40

What are the categories of imaging?

Answer 40

Conventional radiography and advanced modalities.

Question 41

What is fluoroscopy?

Answer 41

Dynamic/continuous radiographs that provide real-time imaging that can be archived.

Question 42

What does CR stand for?

Answer 42

Contrast enhanced radiographs.

Question 43

What is musculoskeletal CR?

Answer 43

Arthrograms (joints) and myelograms (spine).

Question 44

What is arthrography?

Answer 44

Contrast media study of a joint and its soft tissue structures.

Question 45

What is myelography?

Answer 45

Contrast media study of the spinal cord, dura mater, and nerve roots.

Question 46

What is nuclear imaging?

Answer 46

Specialty that uses radio pharmaceutical (tracer) = radionuclide (emits gamma rays) + pharmaceutical (targeted specific organ).

Question 47

What does windowing refer to in imaging?

Answer 47

The range of radio densities displayed in an image.

Question 48

What does T1 imaging measure?

Answer 48

Measures tissues that give up energy and displays all tissues well.

Question 49

What does T2 imaging measure?

Answer 49

Measures energy not ready releasing energy.

Question 50

What are errors of observation?

Answer 50

Faulty or incomplete search patterns.

Question 51

What are errors of interpretation?

Answer 51

Failure to link radiologic signs to clinic data.

Question 52

What does the A in ABCS search pattern stand for?

Answer 52

Alignment.

Question 53

What does the B in ABCS search pattern stand for?

Answer 53

Bone density.

Question 54

What does the C in ABCS search pattern stand for?

Answer 54

Cartilage space.

Question 55

What does the S in ABCS search pattern stand for?

Answer 55

Soft tissues.

Question 56

What does the alignment search pattern involve?

Answer 56

Looking at general skeletal architecture, general contour of bone, alignment of bones to adjacent bones.

Question 57

What does the bone density search pattern involve?

Answer 57

Looking at general bone density, texture abnormalities, localized density changes.

Question 58

What does the cartilage space search pattern involve?

Answer 58

Looking at joint width space, subchondral bone, and epiphyseal plates.

Question 59

What does the soft tissue search patterns involve?

Answer 59

Looking at muscles, fat pads and lines, joint capsules, periosteum, miscellaneous soft tissue findings.