# Field-Of-View

The FOV doesn't change. The interval between one point in k-space and the next (Δk_{x}, in the x-direction) doesn't change, and FOV_{x} = 1/Δk_{x}.

Δk_{x }= γ.G_{x}.ΔT_{s}, (units m^{-1}) where γ is the gyromagnetic ratio, G_{x} is the gradient strength in the x-direction, and ΔT_{s} is the "sampling interval": the time to sample just one point of one line in k-space.

All we lose is spatial resolution.

Further reading on this topic:

Books: MRI From Picture to Proton p128, MRI The Basics p160-165, 251