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Neuroimaging CLTM – Questions & Answers
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Neuroimaging CLTM – Questions & Answers
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Neuroimaging CLTM – Questions & Answerscomputed tomography (CT) ✔️Ans - what does CT stand for
bleeds, strokes, fx, and tumors (bony structures and soft tissues) ✔️Ans - CT
high definition can detect
white= bone, gray=tissue and fluid, Black=air ✔️Ans - What are the colors
white, gray and black in CT
vascular changes, white and gray matter, edema ✔️Ans - MRI detects
changes of what (3)
Hippocampal sclerosis ✔️Ans - What is the most common type of
neuropathological damage seen in patients with TLE
Hippocampal sclerosis (HS, aka MTS) ✔️Ans - a type of neuronal cell loss
seen in 65% of TLE
magnets and radio waves ✔️Ans - CT and xray use radiation, what does MRI
use
spatial & temporal mapping ✔️Ans - MRI is used for _____ & ______mapping of
interictal epileptiform discharges
temporal ✔️Ans - What measures brain activity and has good spatial and
excellent ______ resolution
structure and function ✔️Ans - CCEEG is sensitive to changes in both brain
_______ and _______
MTS, cortical dysplasia, tuberous sclerosis, gliomas ✔️Ans - MRI can detect
these anomalies in epileptic pts (4)
Loss of volume of T1 imaging and High T2 signal ✔️Ans - What are the key
features that MRI detect for HS
MRI ✔️Ans - What is the gold standard for assessing MTS
, Nickel-chromium ✔️Ans - MRI electrodes are made of _____ _______ composite
Presurgical workup ✔️Ans - MRI is part of what surgical work-up
BOLD (Blood Oxygen Level Detection) Hemodynamic response related to
neural function ✔️Ans - fmri measures
spatial focal changes ✔️Ans - fMRI detects _____ ______ changes in blood flow
and oxygenation (BOLD)
sensory, motor, and language ✔️Ans - fMRI can also map
no ✔️Ans - can fmri map seizure focus
spectroscopy, chemical, graphically ✔️Ans - fmri is a combination of MRI
and __________. This takes quantitative ______________ information and
displays________
Magnetic Resonance Spectroscopy, metabolites ✔️Ans - M.R.S. measures
levels of different _______ in the body tissues
75% ✔️Ans - M.R.S and lateralize H.S. in approx. ____% of cases
Positron Emission Tomography ✔️Ans - What does PET
FDG (Fluorodeoxyglucose) PET, disease ✔️Ans - What is the radioactive
tracer called used in PET, and what does it look for?
Glucose metabolism ✔️Ans - PET measures _______ _________
DECREASED GLUOSE UPTAKE ✔️Ans - Patient interictal PET scans with Left
temporal lobe epilepsy will show decreased _______ _______
Hypometabolism ✔️Ans - During interictal PET scan, seizure focus is hyper
or hypo metabolism
single photon emission computed tomography (SPECT) ✔️Ans - SPECT
stands for
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