PET and SPECT Functional Imaging Practice Questions

Question 1

Gamma camera in Nuclear Medicine is used for –

Accepted Answer

Organ imaging

Answer

Measuring the radioactivity

Answer

RIA

Answer

Monitoring the surface contamination

Question 2

Investigation of choice for leptomeningeal carcinomatosis:

Accepted Answer

Gd enhanced MRI

Answer

CT scan

Answer

SPECT

Answer

PET

Question 3

Which radioisotope is PRIMARILY used for detecting acute myocardial infarction rather than assessing myocardial perfusion?

Accepted Answer

Tc-99m Pyrophosphate

Answer

Thallium 201

Answer

Tc-99m Sestamibi

Answer

18-FDG PET

Question 4

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

Accepted Answer

DTPA renogram

Answer

Ultrasonography

Answer

IVU

Answer

Creatinine clearance

Question 5

Tc-labeled RBCs are used for all except:

Accepted Answer

Liver adenoma

Answer

LV function

Answer

GI bleeding

Answer

Liver hemangioma

Question 6

Which of the following liver metastases appear hypoechoic on ultrasound?

Accepted Answer

Breast cancer

Answer

RCC

Answer

Colon cancer

Answer

Mucinous adenocarcinoma

Question 7

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 8

Which of the following is a functional investigation?

Accepted Answer

PET scan

Answer

CT scan

Answer

MRI

Answer

USG

PET and SPECT Functional Imaging — MCQs