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

The right lateral recumbent view is standard for thoracic radiography as it provides consistent cardiac silhouette positioning for comparison.

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

The silhouette sign occurs when two structures of similar opacity are in direct contact, causing their borders to become indistinct.

Question 3

What is the principle behind ultrasonographic imaging?

Accepted Answer

Reflection of high-frequency sound waves from tissue interfaces

Answer

Ultrasound imaging uses the reflection (echoes) of high-frequency sound waves at tissue interfaces to create images.

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

MRI provides superior soft tissue contrast, making it the gold standard for evaluating intervertebral disc material and spinal cord compression.

Question 5

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

Accepted Answer

Completely black with no internal echoes

Answer

Anechoic structures produce no echoes and appear completely black on ultrasound, which is characteristic of fluid-filled structures.

(ICVA) International Council for Veterinary Assessment Practice Test