2D k-Space MRI Spin Visualization
kx (cycles/FOV):
0.0
ky (cycles/FOV):
0.0
Animation:
1.0x
Pause
Reset Phase
Current k-space position:
Reference Frame:
Laboratory Frame
Rotating Frame
Presets:
Center (DC)
Vertical edges
Horizontal edges
Diagonal details
High frequency
Spin Phase Distribution
Net Signal:
1.00
Magnitude:
100%
Phase Map (2D)
Spatial frequencies:
fx:
0.0
| fy:
0.0
k-Space Location
k-vector magnitude:
0.0
Angle:
0°
Understanding 2D k-Space:
Left Panel:
Individual spins in the sample. Color = phase, arrow = magnetization direction
Middle Panel:
2D phase map showing the phase pattern created by (kx, ky)
Right Panel:
Current position in k-space. Red dot shows where you are sampling
k = (0,0):
All spins in phase - captures overall brightness/contrast
kx only:
Creates vertical stripes (horizontal spatial frequency)
ky only:
Creates horizontal stripes (vertical spatial frequency)
Both kx & ky:
Creates diagonal patterns - captures corners and diagonal edges