FOV

Select an FOV that covers the anatomy of interest.

• Anatomy outside the FOV in the phase direction results in aliasing.
• Decrease the FOV and the Signal-to-Noise Ratio (SNR) decreases, the spatial resolution increases, and the minimum Time of Echo (TE, and echo space) can increase.
• For EPI scans, as the number of shots decreases, consider increasing the FOV to decrease geometric distortion.
• For 2D and 3D Chemical Shift Imaging (CSI) spectroscopy, the FOV refers to the Point RESolved Spectroscopy (PRESS) volume. The FOV value must be larger than the PRESS Region Of Interest (ROI) deposited in Graphic Rx.
• When using a 3D acquisition as a localizer, make sure the FOV of the prescription intersects the localizer. To avoid FOV restrictions, use a center slice.
• The frequency gradient slope determines FOV. As the FOV decreases, gradient heating and minimum TE increase. This can lead to a reduction of slices.