What happens to scan time when the frequency matrix is increased?

When the frequency matrix is increased, the scan time typically increases. This relationship exists because increasing the frequency matrix means more data points are being acquired in the imaging process. The frequency matrix refers to the number of pixels or samples collected for each slice of an image; thus, doubling the frequency matrix would effectively involve collecting twice as much data. This increased volume of data takes longer to acquire and process, leading to an overall increase in scan time.

Additionally, a larger frequency matrix can enhance the spatial resolution of the image, allowing for finer details to be resolved. However, this improvement in image quality comes at the cost of longer scan times, as the system has to dedicate more time to gather the additional information. It's important to consider this trade-off in clinical settings, as scan time can significantly affect patient experience and workflow.