MRI K Space

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

The number of rows of K Space filled per TR period in a Spin Echo sequence is

1

In K Space, the data containing signal and contrast information are located

Along the central lines

In K Space, the data containing high resolution are located

Along the outer lines

Echoes with the lowest phase encoding gradient (highest signal) are places where in K Space?

Center

The high amplitude signals are stored where in K Space?

Center (where contrast information is also found)

Acquiring a bit more than half the phase dimension k space samples, then interpolating the data with zeroes for the remaining half is a technique known as

Half Fourier, or Zero Fill.

Center of K Space=

Maximum Signal

When only half the views of K Space are filled in the frequency axis, this is known as

Partial of Fractional Echo (an acceleration technique used to shorten TR and TE)

Reducing the number of lines filled in K Space will

Produce an image with decrease in spatial resolution

The number of rows of K Space filled per TR period in a Fast Spin Echo Sequence is

The same as ETL (or TSE factor)

K Space is defined as

The storage location of the MR signal data

Collecting the low frequency (high amplitude signal) data points in K Space at the start of the scan (in a spiral fashion) is known as

elliptic centric k-space filling


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