Podcast
Questions and Answers
Which imaging artifact is also known as phase mismapping?
Which imaging artifact is also known as phase mismapping?
- Motion artifact
- Ghosting artifact (correct)
- Saturation artifact
- Pulsatile artifact
What causes phase mismapping?
What causes phase mismapping?
- Respiration
- Vessel pulsation
- Swallowing
- All of the above (correct)
Which remedy can help reduce phase mismapping artifacts?
Which remedy can help reduce phase mismapping artifacts?
- Increasing TR
- Swapping phase and frequency encoding directions
- Using presaturation pulses
- All of the above (correct)
Which direction does phase mismapping occur in an image?
Which direction does phase mismapping occur in an image?
What causes phase mismapping artifact?
What causes phase mismapping artifact?
What can be done to reduce phase mismapping artifacts?
What can be done to reduce phase mismapping artifacts?
Which imaging technique is prone to ghosting artifact from swallowing?
Which imaging technique is prone to ghosting artifact from swallowing?
What is the effect of increasing the TR on phase mismapping artifacts?
What is the effect of increasing the TR on phase mismapping artifacts?
How does swapping the phase and frequency encoding directions help with phase mismapping artifacts?
How does swapping the phase and frequency encoding directions help with phase mismapping artifacts?
What can presaturation pulses do to phase mismapping artifacts?
What can presaturation pulses do to phase mismapping artifacts?
Which type of motion can cause periodic perturbations of the collected data, leading to ghosting artifacts?
Which type of motion can cause periodic perturbations of the collected data, leading to ghosting artifacts?
What is the cause of phase mismapping in an MRI scan?
What is the cause of phase mismapping in an MRI scan?
What can be done to reduce phase mismapping caused by pulsatile flow?
What can be done to reduce phase mismapping caused by pulsatile flow?
