ICVA Veterinary Diagnostic Imaging

Question 1

Which radiographic view is most commonly used to evaluate the thorax in a lateral recumbent patient?

Accepted Answer

Right lateral recumbent

Answer

Ventrodorsal (VD)

Answer

Dorsoventral (DV)

Answer

Oblique lateral

Question 2

On thoracic radiographs, a silhouette sign occurs when two structures of similar opacity are:

Accepted Answer

In direct contact with each other

Answer

Separated by air-filled lung

Answer

Overlapping but not touching

Answer

Located on opposite sides of the mediastinum

Question 3

What is the principle behind ultrasonographic imaging?

Accepted Answer

Reflection of high-frequency sound waves from tissue interfaces

Answer

X-ray attenuation through tissues

Answer

Magnetic resonance of hydrogen nuclei

Answer

Detection of gamma rays emitted by radioactive tracers

Question 4

Which modality is BEST suited for evaluating soft tissue structures of the intervertebral disc in small animals?

Accepted Answer

Magnetic resonance imaging (MRI)

Answer

Survey radiography

Answer

Fluoroscopy

Answer

Nuclear scintigraphy

Question 5

On ultrasound, a structure described as 'anechoic' appears:

Accepted Answer

Completely black with no internal echoes

Answer

Bright white

Answer

Heterogeneous with mixed echoes

Answer

Hyperechoic with acoustic shadowing

Question 6

Which contrast medium is most appropriate for myelography in veterinary patients?

Accepted Answer

Iohexol

Answer

Barium sulfate

Answer

Iodinated oil-based contrast

Answer

Air alone

Question 7

The term 'opacity' in radiography refers to:

Accepted Answer

The degree to which a structure attenuates X-ray beam

Answer

How bright a structure appears on the image

Answer

The resolution of the radiographic image

Answer

The amount of scatter radiation produced