From 17a7b40ca1ee1e0dd643ff50c9142434f68fc383 Mon Sep 17 00:00:00 2001
From: GitHub Actions The acquisition starts with application of strong magnetic field
B0 (e.g. 1.5 or 3.0 Tesla > 10000x earth’s magnetic field)
which forces the hydrogen nuclei of the abundant water molecules in soft
@@ -410,8 +408,7 @@
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@@ -313,7 +313,7 @@
See all in one page
+
See all in one page
Objectives
You Are Here!
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-Image acquisition
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+You Are Here!
+Image acquisition
Objectives
parameter: echo time (TE)) and how fast you repeat the
tilt-relax process i.e. RF pulse frequency (design parameter:
repetition time (TR)).
Here we see signal from two different tissues as the nuclei are tilted and realigned. The figure on the left shows a single nucleus (i.e. tiny magnet) being tilted away and then precessing back to the the @@ -419,13 +416,11 @@
The dotted-black line represents the epoch when you “listen” to the signal (i.e. echo time or TE).
)
-TE short | TE long (~ T2 of tissue of interest) | @@ -444,8 +439,7 @@Identify demyelination |
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