Radiology Flashcards
1
Q
Radiology
A
the branch of medicine that deals with imaging technology for diagnosing and treating illness and disease
- includes X-rays, CT scans, MRIs, Ultrasound and Nuclear Imaging
2
Q
What are the three basic means by which radiologic images are produced?
A
- Transmission of energy: X-rays: Radio-opaque/lucent
- Emission of energy: MRI: Hyper/hypo-intense
- Transmission and Reflection of energy: USG: Hperechoic/hypoechoic
3
Q
X-Rays
A
The absorption of x-rays by different tissues within the body depends on the atomic number, thickness, and density of the tissues
4
Q
What are the 5 densities that are seen on standard radiographs?
A
- Air
- Fat
- Water/tissue
- Bone
- Metal
