Diffusion and Perfusion Imaging Practice Questions

Question 1

Which of the following is not a differential diagnosis of non-accidental injury?

Accepted Answer

Osteopetrosis

Answer

Osteogenesis imperfecta

Answer

Scurvy

Answer

Caffey's disease

Question 2

Which of the following appears the same on both T1 and T2 weighted MRI sequences?

Accepted Answer

Fat

Answer

Gall bladder

Answer

Kidney

Answer

CSF

Question 3

A 65-year-old male presents with acute onset of right-sided weakness and facial droop. CT shows no hemorrhage, but MRI with DWI reveals hyperintense lesions in the left MCA territory. What is the next best step?

Accepted Answer

IV thrombolysis

Answer

Cerebral angiography

Answer

Anticoagulation

Answer

CT perfusion

Question 4

False regarding Alzheimer's disease (AD) is:

Accepted Answer

Extracellular inclusion (lesion) can occur in the absence of intracellular inclusions to make pathological diagnosis of AD

Answer

Number of neurofibrillary tangles is associated with the severity of dementia

Answer

Number of senile (neuritic) plaques correlates (increases) with age

Answer

Presence of tau protein suggest neurodegeneration

Question 5

In Spot Map, what do dots of different colors typically represent?

Accepted Answer

Different diseases

Answer

Different age groups

Answer

Different time periods

Answer

Different outcomes

Question 6

A polytrauma patient's CT brain shows a crescent-shaped extra-axial collection with a concave inner margin. What is the most likely diagnosis?

Accepted Answer

SDH

Answer

EDH

Answer

Contusion

Answer

Diffuse axonal injury

Question 7

MUGA scan is not useful in:

Accepted Answer

Regional wall perfusion

Answer

Stroke volume

Answer

Left ventricular ejection fraction

Answer

Regional wall motion

Question 8

In a child, non-functioning kidney is best diagnosed by:

Accepted Answer

DTPA renogram

Answer

Ultrasonography

Answer

IVU

Answer

Creatinine clearance

Question 9

What is the primary principle behind BOLD (Blood Oxygen Level Dependent) contrast in functional MRI?

Accepted Answer

Paramagnetic properties of deoxyhemoglobin

Answer

Increased water diffusion in active tissue

Answer

Accumulation of gadolinium in active neurons

Answer

Increased fat content in metabolically active tissue

Question 10

Which of the following is a functional investigation?

Accepted Answer

PET scan

Answer

CT scan

Answer

MRI

Answer

USG

Diffusion and Perfusion Imaging — MCQs

Diffusion and Perfusion Imaging — MCQs

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