Question

What will happen to SAR when the number of slices acquired increases?

1) SAR will decrease
2) SAR will remain the same
3) SAR will increase
4) Cannot be determined

Answer 1

SAR (Specific Absorption Rate) will increase when the number of slices acquired in an MRI scan increases.

Step-by-step explanation:

SAR (Specific Absorption Rate) is a measure of the rate at which energy is absorbed by the body when exposed to electromagnetic waves, such as those used in MRI scans. As the number of slices acquired increases, the SAR will increase. This is because acquiring more slices requires the MRI scanner to emit a larger amount of electromagnetic energy, resulting in a higher SAR.

For example, let's say the number of slices acquired is doubled. This means that the MRI scanner will emit twice as much electromagnetic energy, leading to an increase in SAR.

The subject of this question pertains to the Specific Absorption Rate (SAR), which relates to Physics, particularly in the context of magnetic resonance imaging (MRI). When the number of slices acquired increases, the SAR can either increase, remain the same, or decrease, depending on various factors including the sequence used, power deposition, and timing parameters. However, without additional specific information on scan parameters, it is not possible to determine the exact effect on SAR.