Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physics > Artefacts > Flashcards

Artefacts Flashcards

1
Q

Name the artefact, cause and correction

A

BEAM HARDENING

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the artefact, cause and correction

A

PARTIAL VOLUME ARTEFACT

  • > differs from PV averaging
  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Name the artefact, cause and correction

A

PHOTON STARVATION

  • Cause: severe attenuation, loss of photons reaching detector
  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the artefact, cause and correction

A

UNDERSAMPLING / ALIASING

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the artefact, cause and correction

A

HIGH DENSITY MATERIAL ARTeFACT

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the artefact, cause and correction

A

MOTION ARTEFACT

  • Patient based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name the artefact, cause and correction

A

DETECTOR FAILURE / NON-LINEARITY (Ring artefacts)

  • Scanner based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the artefact, cause and correction

A

EDGE GRADIENT ARTEFACT

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Name the artefact, cause and correction

A

TRUNCATION

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name the artefact, cause and correction

A

HELICAL ARTIFACT (Windmill)

  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Name the artefact, cause and correction

WHAT SETTINGS SHOULD BE USED TO VIEW BULLAE WITH FLUID?

A

POINT SPREAD EFFECT (also review blooming)

  • Physics based artefact
  • > Bullae with fluid: Apparent thickening -> worse when use low freq, low and narrow WW/WL due to reduced inherent contrast in this situation cf air-filled bullae which have more contrast. -> BASICALLY MAKE MORE LIKE A BONE WINDOW!
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Name the artefact, cause and correction

A

EDGE ENHANCEMENT ARTIFACT = Rebound / Uberschwinger

  • > see pulmonary margin and region of epidural space
  • Physics based artefact
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Name the artefact, cause and correction

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Name the artefact, cause and correction

A

GRATING LOBE -> notice not a mirror! No reflective interface, no mirroring. Rather just lateral displacement and less echoic version of liver

21
Q

Name the artefact, cause and correction

A
22
Q

Name the artefact, cause and correction

A
23
Q

Name the artefact, cause and correction

A
24
Q

Name the artefact, cause and correction

A
25
Q

Name the artefact, cause and correction

A
26
Q

Name the artefact, cause and correction

A
27
Q

Name the artefact, cause and correction

A
28
Q

Name the artefact, cause and correction

A
29
Q

Name the artefact, cause and correction

A
30
Q

Name the artefact, cause and correction

A
31
Q

Name the artefact, cause and correction

A
32
Q

Name the artefact, cause and correction

A
33
Q

Name the artefact, cause and correction

A
34
Q

Name the artefact, cause and correction

A
35
Q

Name the artefact, cause and correction

A
36
Q

Name the artefact, cause and correction

A
37
Q

Name the artefact, cause and correction

A
38
Q

Name the artefact, cause and correction

A
39
Q

Name the artefact, cause and correction

A
40
Q

Name the artefact, cause and correction

A
41
Q

Name the artefact, cause and correction

A
42
Q

Name the artefact, cause and correction

A
43
Q

Name the artefact, cause and correction

A
44
Q

Name the artefact, cause and correction

A
45
Q

Name the artefact, cause and correction

A
46
Q

Name the artefact, cause and correction

A
47
Q

Name the artefact, cause and correction

A
48
Q

Name the artefact, cause and correction

A
49
Q

Describe DENSITY THRESHOLD artefact (Radiography). Image not found!

A

Physics (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions