Artifacts

Question 1

Three causes of artifacts

Answer 1

1. Improper handling
2. Exposure
3. Processing

Question 2

What are three problems that result from artifacts

Answer 2

1. Mimic disease
2. Mask disease
3. Non diagnostic

Question 3

Six types of artifacts

Answer 3

1. Film fog
2. Exposure lines
3. Black boarders
4. White areas
5. Decreased detail
6. Grid lines

Question 4

What is film fog

Answer 4

development of unexposed silver halide crystals in the film

Question 5

What causes exposure lines (2)

Answer 5

1. Rough handling (scratches or bends)
2. Static discharge

Question 6

What causes black boarders

Answer 6

film bin/ box leaks

Question 7

What five things can cause white area artifacts

Answer 7

1. Foreign material in cassette
2. Spilled ocntrast
3. Screen damage
4. Scratches during developing
5. Cassette in upside down

Question 8

Name four things that can cause decreased detail

Answer 8

1. Motion
2. Poor screen film contact
3. increased object to film distance
4. Decreased SID