Exponential changes

Question 1

What are exponential change concerned with?

Answer 1

Quantities that change with time or distance

Question 2

What is exponential change?

Answer 2

one that accelerates/decelerates with time or distance

Question 3

Where are exponential changes observed?

Answer 3

1. Physical system
2. Imaging system
3. Biological system

Question 4

What are the knowledge of exponential function allow us to do?

Answer 4

1. Predict constrast behaviour of imaging method
2. Determine physical properties of tissues from appropriate images
   Determine decay rate for certain types of processes in certain type of tissue, useful for research

Question 5

When does exponential change occur?

Answer 5

When the rate at which something changes is proportional to the size of that something at a given time

Question 6

What are examples of exponential decay?

Answer 6

T2 decay in MRI
Radioactive decay
X-ray absorption
MRI diffusion - weighting