How does scan time change as the FOV increases?

As the Field of View (FOV) increases in medical imaging, scan time does not inherently change because the parameters of the scan are set to acquire data over the entire area defined by the FOV. The scan time is primarily influenced by factors such as the number of slices being acquired, the timing of the sequence, the chosen resolution, and the specific imaging modality being used (e.g., MRI, CT).

In certain imaging protocols, even with a larger FOV, the system can be designed to maintain a constant scan time by adjusting other parameters, like the matrix size or slice thickness. Thus, increasing the FOV does not necessarily lead to a proportional increase or decrease in scan time; rather, it can remain consistent based on how the imaging protocol is configured.

Understanding this relationship helps imaging professionals effectively plan and execute scans while ensuring optimal image quality and diagnostic accuracy without unnecessarily prolonging patient exposure or discomfort during the imaging process.