Gadolinium (Gd) shortens T1 recovery times for molecules tumbling near the Larmor frequency. It allows rapid water exchange, bringing water molecules close enough to alter their relaxivity. Fat molecules are too large to be affected.

Hydrogen nuclei in fat molecules consist of the following:Select all that apply

The Nyquist theorem states that the sampling frequency must be at least twice the highest frequency to prevent aliasing.

Which of the following tissues would show high signal intensity on T1-weighted images?

Of the following, which may be used when referring to the 1H protons aligned with the βο?

The echo readout is determined by the Time of Echo (TE).

Which of the following is true regarding proton density (PD) weighting?

What is the gyromagnetic ratio used for?

Which of the following describes spin-spin relaxation?

Which factor can be adjusted by the MRI technologist to influence image contrast weighting?