Radiology Flashcards
1
Q
Benefits of x-rays
A
- good to look at bones, e.g. to find fractures
- less radiation than CT
2
Q
Disadvantages of x-rays
A
- not good to analyse soft tissue
- cause does dependent DNA damage
3
Q
Advantages of CT scanning
A
- used to show soft tissue pathology
- superior contrast resolution to x-rays
4
Q
Disadvantages of CT scanning
A
- a chest CT, is the same as 250 CXR
- massive dosage of radiation
5
Q
Advantages of ultrasounds
A
- done in real time
- no radiation
- good for soft tissue
6
Q
Disadvantages of ultrasound
A
- gas and bones block ultrasound
- cant be used as easily in overweight people
7
Q
Advantages of MRI
A
- no radiation
- good images
8
Q
Disadvantages of MRI
A
- Expensive
- takes ages
- massive magnetic field
9
Q
How do ultrasounds work?
A
- transmits sound pulses and listens for its return
