Practice Exam: CLTM Questions with
verified Solution 2025| Graded A
What is the primary purpose of Positron Emission Tomography (PET) in epilepsy diagnosis?
To assess brain metabolism and identify areas of hypoactivity associated with seizure foci.
What is the main advantage of using Single Photon Emission Computed Tomography (SPECT)
in epilepsy evaluation?
It helps to identify areas of the brain with decreased blood flow, often correlating with
seizure foci.
Which imaging technique is particularly useful for detecting changes in brain oxygenation during
functional tasks?
Functional Magnetic Resonance Imaging (fMRI).
What is the role of an Electroencephalography (EEG) in the pre-surgical evaluation for epilepsy?
EEG helps to identify the location of seizure foci by recording electrical activity in the brain.
What is the most common imaging technique used to assess brain structural abnormalities before
epilepsy surgery?
Magnetic Resonance Imaging (MRI).
1
,In a patient undergoing pre-surgical evaluation for epilepsy, what does the placement of subdural
electrodes aim to identify?
It aims to localize the precise origin of seizures in the brain.
What is the purpose of the Epilepsy Monitoring Unit (EMU) in the context of epilepsy surgery?
It is used to monitor seizures in a controlled environment to gather data for surgical planning.
Which of the following imaging techniques is typically used to assess brain function during pre-
surgical evaluation for epilepsy?
fMRI.
How does functional MRI (fMRI) contribute to language mapping in patients with epilepsy?
It helps to localize language centers in the brain, aiding in planning for surgery near critical
areas.
What type of brain changes does a PET scan typically detect in epilepsy patients?
Changes in brain metabolism, especially hypometabolism in seizure-prone areas.
Which imaging method is considered the gold standard for detecting structural brain
abnormalities like tumors or lesions in epilepsy patients?
MRI.
How does a SPECT scan differ from PET in epilepsy evaluations?
2
, SPECT measures regional blood flow, while PET measures metabolic activity in the brain.
What is the significance of using MRI with contrast in epilepsy surgery evaluations?
It helps to highlight structural lesions, such as tumors or scar tissue, that may be involved in
seizures.
Which of the following best describes a typical sequence in epilepsy surgery planning?
Seizure localization, non-invasive imaging (MRI, SPECT, PET), invasive monitoring
(subdural electrodes), and then surgical resection.
What is the role of neuropsychological testing in the pre-surgical evaluation of epilepsy?
To assess cognitive function and determine the potential impact of surgery on cognitive
abilities.
What is the difference between structural MRI and functional MRI in epilepsy evaluation?
Structural MRI shows anatomical details, while functional MRI shows changes in brain
activity related to specific tasks.
How does magnetoencephalography (MEG) contribute to the evaluation of epilepsy surgery
candidates?
MEG helps to localize the sources of abnormal brain activity with high temporal and spatial
resolution.
3
, Why is it important to perform a comprehensive pre-surgical evaluation in epilepsy surgery
candidates?
To accurately localize the seizure focus and minimize the risk of cognitive impairment post-
surgery.
What information does a CT scan provide in the evaluation of epilepsy surgery candidates?
A CT scan is used to rule out acute structural issues, such as hemorrhage or major brain
malformations.
What is the role of continuous video-EEG monitoring during pre-surgical epilepsy evaluation?
It helps to correlate clinical seizures with EEG findings, aiding in precise localization of the
seizure focus.
What does the use of intracranial EEG (iEEG) offer that scalp EEG cannot?
Intracranial EEG provides more precise localization of seizure foci, especially in cases where
scalp EEG is inconclusive.
What is the purpose of performing a neuropsychological assessment after epilepsy surgery?
To assess any changes in cognitive function post-surgery and monitor for potential cognitive
deficits.
What is the main goal of using functional imaging techniques like fMRI and PET in pre-surgical
epilepsy planning?
4
verified Solution 2025| Graded A
What is the primary purpose of Positron Emission Tomography (PET) in epilepsy diagnosis?
To assess brain metabolism and identify areas of hypoactivity associated with seizure foci.
What is the main advantage of using Single Photon Emission Computed Tomography (SPECT)
in epilepsy evaluation?
It helps to identify areas of the brain with decreased blood flow, often correlating with
seizure foci.
Which imaging technique is particularly useful for detecting changes in brain oxygenation during
functional tasks?
Functional Magnetic Resonance Imaging (fMRI).
What is the role of an Electroencephalography (EEG) in the pre-surgical evaluation for epilepsy?
EEG helps to identify the location of seizure foci by recording electrical activity in the brain.
What is the most common imaging technique used to assess brain structural abnormalities before
epilepsy surgery?
Magnetic Resonance Imaging (MRI).
1
,In a patient undergoing pre-surgical evaluation for epilepsy, what does the placement of subdural
electrodes aim to identify?
It aims to localize the precise origin of seizures in the brain.
What is the purpose of the Epilepsy Monitoring Unit (EMU) in the context of epilepsy surgery?
It is used to monitor seizures in a controlled environment to gather data for surgical planning.
Which of the following imaging techniques is typically used to assess brain function during pre-
surgical evaluation for epilepsy?
fMRI.
How does functional MRI (fMRI) contribute to language mapping in patients with epilepsy?
It helps to localize language centers in the brain, aiding in planning for surgery near critical
areas.
What type of brain changes does a PET scan typically detect in epilepsy patients?
Changes in brain metabolism, especially hypometabolism in seizure-prone areas.
Which imaging method is considered the gold standard for detecting structural brain
abnormalities like tumors or lesions in epilepsy patients?
MRI.
How does a SPECT scan differ from PET in epilepsy evaluations?
2
, SPECT measures regional blood flow, while PET measures metabolic activity in the brain.
What is the significance of using MRI with contrast in epilepsy surgery evaluations?
It helps to highlight structural lesions, such as tumors or scar tissue, that may be involved in
seizures.
Which of the following best describes a typical sequence in epilepsy surgery planning?
Seizure localization, non-invasive imaging (MRI, SPECT, PET), invasive monitoring
(subdural electrodes), and then surgical resection.
What is the role of neuropsychological testing in the pre-surgical evaluation of epilepsy?
To assess cognitive function and determine the potential impact of surgery on cognitive
abilities.
What is the difference between structural MRI and functional MRI in epilepsy evaluation?
Structural MRI shows anatomical details, while functional MRI shows changes in brain
activity related to specific tasks.
How does magnetoencephalography (MEG) contribute to the evaluation of epilepsy surgery
candidates?
MEG helps to localize the sources of abnormal brain activity with high temporal and spatial
resolution.
3
, Why is it important to perform a comprehensive pre-surgical evaluation in epilepsy surgery
candidates?
To accurately localize the seizure focus and minimize the risk of cognitive impairment post-
surgery.
What information does a CT scan provide in the evaluation of epilepsy surgery candidates?
A CT scan is used to rule out acute structural issues, such as hemorrhage or major brain
malformations.
What is the role of continuous video-EEG monitoring during pre-surgical epilepsy evaluation?
It helps to correlate clinical seizures with EEG findings, aiding in precise localization of the
seizure focus.
What does the use of intracranial EEG (iEEG) offer that scalp EEG cannot?
Intracranial EEG provides more precise localization of seizure foci, especially in cases where
scalp EEG is inconclusive.
What is the purpose of performing a neuropsychological assessment after epilepsy surgery?
To assess any changes in cognitive function post-surgery and monitor for potential cognitive
deficits.
What is the main goal of using functional imaging techniques like fMRI and PET in pre-surgical
epilepsy planning?
4
