Diagnostic Imaging Interpretation Flashcards
7 cards from real NAVLE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Diagnostic Imaging Interpretation flashcards as text
On thoracic radiographs of a dog, you notice the cardiac silhouette occupies more than 75% of the thoracic width on the VD view. What does this most likely indicate?
Answer: Cardiomegaly
A cardiac silhouette exceeding 75% of thoracic width on the VD view is consistent with cardiomegaly.
Which radiographic sign is MOST characteristic of a diaphragmatic hernia in a dog?
Answer: Loss of diaphragmatic outline with abdominal organs in the thorax
Loss of the normal diaphragmatic outline combined with abdominal viscera (e.g., intestinal loops, stomach) visible in the thoracic cavity is the hallmark of diaphragmatic hernia.
On ultrasound, a hypoechoic halo surrounding a hepatic mass in a dog is called:
Answer: Target lesion
A hypoechoic halo surrounding a mass on ultrasound is referred to as a target or bull's-eye lesion, often associated with metastatic disease.
A cat presents with a 'ground-glass' opacity on thoracic radiographs. Which condition is MOST associated with this finding?
Answer: Pulmonary edema
Ground-glass opacity reflects partial alveolar filling, most commonly seen with pulmonary edema in cats.
On a lateral skull radiograph, which structure appears as a radiolucent line running through the calvarium and should not be mistaken for a fracture?
Answer: Sagittal suture
The sagittal suture appears as a radiolucent line in the dorsal calvarium and is a normal anatomic finding.
In equine radiography, 'rotation' of the distal phalanx relative to the hoof wall is measured by which imaging technique?
Answer: Lateral radiograph with a reference marker on the dorsal hoof wall
Lateral radiographs with a radio-opaque marker placed on the dorsal hoof wall allow measurement of the palmar angle and rotation of P3 in laminitic horses.
On abdominal ultrasound, an anechoic structure with distal acoustic enhancement in the kidney is MOST consistent with:
Answer: Simple renal cyst
Simple cysts are anechoic with a thin wall and show distal acoustic enhancement due to the lack of sound attenuation by fluid.