K-space filling in mri

1. What is k-space filling?
2. What is k-space filling in MRI?
3. How many lines of k-space are filled per tr?
4. Why is k-space useful?

What is k-space filling?

Filling Methods

Centric K space filling involves filling high signal amplitudes or starting in the center of our K space and filling outward to the periphery. This is useful when performing contrast enhanced MRA imaging, because contrast media has high signal intensity data.

What is k-space filling in MRI?

The k-space is an extension of the concept of Fourier space well known in MR imaging. The k-space represents the spatial frequency information in two or three dimensions of an object. The k-space is defined by the space covered by the phase and frequency encoding data.

How many lines of k-space are filled per tr?

Answer: We fill in eight lines of k-space with each TR, each line going to a separate slab within k-space.

Why is k-space useful?

In practice, k-space often refers to the temporary image space, usually a matrix, in which data from digitized MR signals are stored during data acquisition. When k-space is full (at the end of the scan) the data are mathematically processed to produce a final image. Thus k-space holds raw data before reconstruction.