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Which statement is true about the relaxation time? (choice maybe more than one)

ID: 173999 • Letter: W

Question

Which statement is true about the relaxation time? (choice maybe more than one)

A. A very slow tissue relaxation time results in a very large amount of energy being lost due to absorption.

B. A very fast tissue relaxation time results in a very small amount of energy being lost due to absorption.

C. A very slow tissue relaxation time results in a very small amount of energy being lost due to absorption.

D. A very fast tissue relaxation time results in a very large amount of energy being lost due to absorption.

Explanation / Answer

B. A very fast tissue relaxation time results in a very small amount of energy being lost due to absorption

A. A very slow tissue relaxation time results in a very large amount of energy being lost due to absorption

Reason:

In nuclear magnetic resonance spectroscopy (NMR), a very fast relaxation time or a very slow tissue relaxation time can be observed according to tissue nature. Relaxation time T1 is mainly relied upon the absorbed energy into the tissue where movement of signal with significant loss of energy (a very small amount of energy being lost through absorption). T2 is the relaxation time mainly depends on the loss of signal intensity gradually with high amount of energy finally a very slow tissue relaxation time results in a very large amount of energy being lost due to absorption