Brain imaging techniques

Which imaging technique measures brain activity by detecting changes in blood flow?

• • MRI

• • fMRI

True or False: An advantage of MRI is that it does not use ionizing radiation.

• True

• False

fMRI can only capture static images of the brain and not dynamic brain activity.

• True

• False

What is one major disadvantage of MRI?

• • High cost

• • High radiation exposure

• • Inability to detect soft tissue

• • Limited to only structural imaging

What type of information does fMRI primarily provide?

• • Anatomical structure

• Chemical composition of brain tissue.
• • Blood flow and brain activity

• • Genetic information

Which imaging technique is best for detecting tumors?

• • MRI

• • fMRI

MRI is particularly useful for examining soft tissues, including the brain and spinal cord.

• True

• False

Brain imaging techniques can sometimes lead to misdiagnoses due to false positives.

• True

• False

What is one limitation of brain imaging techniques in general?

• They can all be performed in real-time.

• • They cannot be used on patients with claustrophobia

• • They often require specialized training and expertise.

• • They are not useful in clinical settings

38. Which of the following is a significant disadvantage of using fMRI?

• • It is relatively inexpensive.

• • It has low spatial resolution

• • It can be affected by movement and artifacts.

• It cannot be used for functional imaging.