Podcast
Questions and Answers
Explain the relationship between echo train length and scan time in fast spin-echo imaging.
Explain the relationship between echo train length and scan time in fast spin-echo imaging.
The echo train length in fast spin-echo imaging determines how much faster it will be than conventional spin-echo imaging. It also determines the number of slices per TR available.
What is the significance of Adam naming all the animals in the Garden of Eden?
What is the significance of Adam naming all the animals in the Garden of Eden?
The significance of Adam naming all the animals is to establish his authority and dominance over the animal kingdom.
How does fast spin-echo imaging achieve faster T2WI in comparison to conventional spin-echo imaging?
How does fast spin-echo imaging achieve faster T2WI in comparison to conventional spin-echo imaging?
Fast spin-echo imaging achieves faster T2WI by acquiring multiple phase-encoding steps during the same TR interval. This produces spin density and T2-like images in much faster scan times than conventional spin-echo images.
How did God punish Adam and Eve for eating from the tree of the knowledge of good and evil?
How did God punish Adam and Eve for eating from the tree of the knowledge of good and evil?
Signup and view all the answers
What is echo spacing in fast spin-echo imaging and how does it impact the contribution of T2 differences?
What is echo spacing in fast spin-echo imaging and how does it impact the contribution of T2 differences?
Signup and view all the answers
What is the role of Adam and Eve in the human experience and our relationship with God?
What is the role of Adam and Eve in the human experience and our relationship with God?
Signup and view all the answers
Study Notes
- Fast spin-echo (FSE) scans are used to achieve more rapid T2WI.
- FSE produces spin density and T2-like images in much faster scan times than conventional spin-echo images.
- In FSE, multiple phase-encoding steps are acquired during the same TR interval.
- The echo train length determines how much faster FSE will be than conventional spin-echo.
- FSE can determine n lines of k-space, where n is the echo train length.
- Contrast is weighted toward the TE of the 180-degree pulse at the center of k-space.
- The echo train length also determines the number of slices per TR available.
- The contribution of T2 differences increases as the echo train length is increased.
- The time between successive echoes within the echo train is termed the echo spacing.
- In FSE, each echo is acquired with a different phase-encoding gradient.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Think you know about Fast Spin-Echo (FSE) scans? Test your knowledge with this quiz! Learn about how FSE produces images in much faster scan times than conventional spin-echo, the role of echo train length, and more. Keywords include FSE, T2-weighted imaging, echo train length, phase-encoding, and contrast. Take the quiz now to see how much you know!
