Biomedical Engineering Reference
In-Depth Information
Field of view (FOV): 12 × 12 mm
Matrix size: 128 × 128
Rapid acquisition with refocused echoes (RARE) factors: 8
Repetition time (TR): 1250 ms
Echo time (TE): 5 ms.
125
Amplitude (water density or content)
max = 125 (arbitrary units)
0
10
0.5
Phase shift (velocity)
mm/s
Phase shift (velocity)
mm/s
0.0
0.0
Figure 4.12
The cross-section of Cucurbita by MRI from intact plant showing distribution of water and flow in
the xylem (left) and phloem (right).
Field of view (FOV): 12.5 × 12.5 nm
Diameter: 7.6 mm
Stationary water/pixel average linear velocity/pixel
(%)
(mm/s)
(A)
(B)
0.4
0
0
100%
0
2
Figure 4.13
Poplar stem sections imaged by MRI showing water distribution (A) and flow in the xylem and
phloem (B).
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