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Neuroimaging in Neurologic Disorders
See all quizzes of Neuroimaging in Neurologic Disorders at here:
1 Which of the following investigation is recommended in meningeal
disease ?
A. CT (noncontrast)
B. CT contrast
C. MRI
D. MRI with contrast
2 Which of the following investigation is recommended in
myelopathy ?
A. CT (noncontrast)
B. CT contrast
C. MRI
D. MRI with contrast
3 MRI + contrast is the investigation of choice for all of the following
except ?
A. Neoplasm (primary or metastatic)
B. White matter disorders
C. Infection/abscess
D. Immunosuppressed with focal findings
4 Which of the following is the most sensitive technique for detecting
acute ischemic stroke of brain ?
A. CT angiography (CTA)
B. Perfusion CT (pCT)
C. MR angiography (MRA)
D. Diffusion MR
5 In normal CNS, which of the following structure lacks bloodbrain
barrier (BBB) ?
A. Pituitary gland
B. Choroid plexus
C. Dura
D. All of the above
6 In a routine brain CT study, radiation dose is normally about ?
A. 0.2 to 1 mSv
B. 2 to 5 mSv
C. 6 to 12 mSv
D. 22 to 50 mSv
7 Rise in serum creatinine of at least 1 mg/dL within how many
hours of contrast administration defines contrast nephropathy ?
A. 6 hours
B. 12 hours
C. 24 hours
D. 48 hours
8 Risk factors for contrast nephropathy include all except ?
A. Solitary kidney
B. Diabetes mellitus
C. Hypertension
D. Advanced age (>80 years)
9 What is the eGFR threshold below which iodinated contrast should
not be given ?
A. 90 mL/min/1.732
B. 75 mL/min/1.732
C. 60 mL/min/1.732
D. 45 mL/min/1.732
10 Use of which of the following may reduce the incidence of contrast
nephropathy ?
A. Acetylcysteine
B. Oxygen inhalation
C. Osmolar diuretics
D. Loop diuretics
11 Severe allergic reactions occur in what proportion of patients
receiving nonionic media ?
A. 0.04 %
B. 0.12 %
C. 0.18 %
D. 0.24 %
12 Which of the following is not related to magnetic resonance
imaging (MRI) ?
A. Hydrogen protons in biologic tissues
B. Dynamic magnetic field
C. Static magnetic field
D. Radiofrequency (Rf) waves
13 T2W images are more sensitive than T1W images to all of the
following except ?
A. Edema
B. Fat-containing structures
C. Demyelination
D. Infarction
14 Which of the following statements about gadolinium is false ?
A. Heavy-metal element
B. Paramagnetic substance
C. Chelated to DTPA
D. Approximate dose 2 mL/kg IV
15 Gadolinium is produced both from which of the following
minerals ?
A. Ilmenite
B. Zircon
C. Monazite
D. Sillimanite
16 Which of the following countries has deposits of monazite
sands ?
A. India
B. Brazil
C. South Africa
D. All of the above
17 Symbol of Gadolinium is ?
A. Ga
B. Gd
C. Gl
D. Gm
18 Which of the following is best related to gadolinium contrast
agents ?
A. Nephrogenic diabetes insipidus (NDI)
B. Nephrogenic Syndrome of Inappropriate Antidiuresis
C. Nephrogenic systemic fibrosis (NSF)
D. Nephrotic syndrome
19 Nephrogenic systemic fibrosis (NSF) involves which of the
following parts of the body most ?
A. Upper extremities
B. Between ankles and thighs
C. Trunk
D. Face
20 Nephrogenic systemic fibrosis (NSF) involves which of the
following parts of the body least ?
A. Upper extremities
B. Between ankles and thighs
C. Trunk
D. Face
21 Which of the following is a laboratory biomarker for NSF ?
A. Anti nuclear antibodies
B. Rheumatoid factor
C. Anti-SCL70 antibodies
D. None of the above
22 Which of the following is characteristic and pathognomonic of
NSF ?
A. Proliferation of dermal spindle cells
B. Thick collagen bundles with surrounding clefts
C. Immunohistochemically CD34 reactivity in fibroblast-like cells
D. Absence of mucin and elastic fibers
23 Disorder that causes thickening & hardening of skin of extremities
& trunk is ?
A. Systemic sclerosis
B. Scleromyxedema
C. Eosinophilic fasciitis
D. All of the above
24 Most frequently used radionuclide moiety in Positron Emission
Tomography (PET) is ?
A. 2-[16F]fluoro-2-deoxy-d-glucose
B. 2-[17F]fluoro-2-deoxy-d-glucose
C. 2-[18F]fluoro-2-deoxy-d-glucose
D. 2-[19F]fluoro-2-deoxy-d-glucose
