Diagnostic Imaging Day 8

Generate an image of veterinary diagnostic imaging equipment, such as ultrasound machines, MRI scanners, and x-ray machines in a clinical setting, with animals being examined.

Diagnostic Imaging Quiz

Test your knowledge in veterinary diagnostic imaging with our comprehensive quiz covering ultrasound, fluoroscopy, MRI, and more! Whether you're a professional or a student, this quiz will enhance your understanding of critical imaging concepts.

Key Features:

32 Varied Questions
Multiple Choice Format
Instant Scoring

32 Questions8 MinutesCreated by ScanningBreeze101

The use of ultrasound in imaging:

Creates a radiation hazard that must be restricted by the use of barriers

Involves low-pitched sound waves that carry through barriers

Is a valuable imaging tool, but does not involve ionizing radiation

Uses ionizing radiation to create images on a monitor

Echogenicity is:

An area of interest that appears brighter than the surrounding tissue

A structure that is lacking in internal echoes and is very dark

An area where the sound waves are repeatedly reflected between two reflective surfaces

The appearance of tissues based on the ability to reflect sound waves

Attenuation is:

An area that has relatively similar echogenicity in tissues

The loss of sound wave energy as it travels through the tissue

The area of the structure farthest away from the probe

The tissue of interest reflecting back more intense sound waves

Which of the following is not an advantage of using ultrasound imaging?

Real-time imaging

Ability to move the probe in any direction

Multiplanar reconstruction

The need for protection from magnetic fields

Which of the following will result in reduced image resolution and clarity?

Using an acoustic gel on the skin

Having the animal stand during the examination

Clipping the fur

Panting or struggling of the patient

A King Charles Cavalier Spaniel presents with a possible congenital heart condition. What type of Doppler would be the most useful to evaluate this condition?

Pulse wave

Power color

Color

Continuous wave

The image on the screen is very dark demonstrating a limited gray scale. Which knob should be adjusted to brighten the image?

Gain

Depth

Focal zones

Frequency

By adjusting this setting you would affect the gain settings and tissue harmonics in order to gain the ideal image:

Depth

Focal zone

Frequency

Optimization

An equine practice that specializes in lameness would only need to have one transducer. Which type of transducer would be the most effective for lameness evaluations?

Linear

Microconvex

Convex

Matrix

Transducers are very expensive. Which of the following is a safe way to remove contaminated fluids on a transducer?

70% isopropyl alcohol

10% bleach solution

A glutaraldehyde-based disinfectant

All of the above.

One of the most common artifacts on ultrasounds is due to the reflections of sound waves when they come into contact with air. This artifact is referred to as:

Comet tail

Acoustic enhancement

Reverberation

Edge shadowing

This type of artifact is commonly seen with uroliths or bone when most of the sound beam is either reflected away or absorbed.

Acoustic enhancement

Acoustic Shadowing

Reverberation

Comet Tail

In which species is ultrasound primarily used to measure the backfat levels of animals?

Equine

Bovine

Ovine

Porcine

Fluoroscopy changed the static nature of the x-ray image:

This was achieved by imaging the patient on a moving screen.

The real-time image was produced in a series of still photographs.

The real-time image of the patient was projected to a fluorescent screen.

The patient was placed behind a barrier to decrease radiation.

This function on a fluoroscope can reduce the patient dose by one-half.

Timer

Image intensifier

Foot switch

Pulse

Which is true for fluoroscopy?

Fluoro mode uses low mAs and high kVs.

The kV and mA and time values are the same as traditional radiography units.

Time is independently selected.

Both A and C

Computed tomography uses imaging and a computer:

To detect radioisotopes and determine the amount of dose to the patient

To collect radiation to produce an image on a computer screen

To demonstrate patient anatomy pathology by imaging “slices” of the patient

When the diagnosis of the patient has failed using other modalities

Magnetic resonance imaging is a useful imaging tool;

It employs a powerful magnet to affect the atoms in the patient.

It will not be hazardous if the magnet is turned off.

It organizes body structures into light and dark images.

It will not be hazardous if the worker is trained in correct protocol.

In MRI, the varying shades of gray in the image are referred to as:

Contrast

Weighting

Signal intensities

Densities

The radionuclide, iodine-131, is used in veterinary medicine to treat:

Lymphoma

Hyperthyroidism

Diabetes mellitus

Osteosarcoma

This isotope is used for nuclear scintigraphy, especially in equine practices.

Idodine-131

Technetium Tc 99m

mCi

If a horse has been injected with technetium Tc 99m, for safety reasons, how long should the animal be isolated at the hospital?

72 hours

6 hours

12 hours

48 hours

A patient is undergoing a PET scan for a possible tumor. Which isotope would be used in this situation?

Fludeoxyglucose

Idodine-131

Technetium Tc 99m

Gadolinium

In avian patients, why is exposure not usually based on measurement?

The bird’s system of air sacs provides enhanced contrast in areas that are not well visualized in mammals.

Exposure time is the same for feline and avian radiography.

Most exposure charts are based on species and size.

Most birds do require measurements over the thickest part.

For a ventrodorsal view of the avian coelom, the best way to ensure symmetry is to make sure that:

The scapula, acetabulum, and femur are parallel, equidistant, and symmetrical.

The wings are open at 90 degrees to the body.

The keel is directly over the spine.

All of the above are true.

The borders required in a cloacagram include the:

Cranial third of the coelom

Buccal cavity, esophagus and crop, to the gizzard

Entire coelom

Entire GI tract from buccal cavity to rectum

Why is a short exposure time important for birds?

It is not important for birds to have a shorter exposure time.

Because of muscle tremors that are not uncommon

To minimize the motion artifacts associated with a rapid respiratory rate

Both a and b

For birds, a longer scale of contrast associated with kVp in the ___ range is preferred.

20 to 30 kVp

25 to 35 kVp

40 to 60 kVp

50 to 75 kVp

How does respiration in the avian patient affect imaging?

Air sacs and the lungs are nonexpansile.

Positive-pressure ventilation can be applied to an intubated, anesthetized bird for air sac inflation.

In the bird, the air is continuously moving into the pulmonary parenchyma.

All of the above affect imaging.

Unlock and Upgrade

Remove all limits from your Quizzes

Diagnostic Imaging Day 8

Diagnostic Imaging Quiz

More Quizzes