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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

  1. Which radiographic finding is MOST consistent with pyloric outflow obstruction in a dog?

    Answer: Markedly distended stomach with delayed gastric emptying

    Pyloric obstruction causes gastric outflow failure, producing marked gastric distension with delayed or absent contrast passage on fluoroscopy.

  2. On a lateral thoracic radiograph, 'sternal contact' of the heart is increased in which cardiac condition?

    Answer: Right ventricular enlargement

    Right ventricular enlargement causes the heart to shift cranioventrally, increasing its contact with the sternum on the lateral view.

  3. Which ultrasound artifact is produced when sound reflects between two parallel, highly reflective surfaces and appears as equidistant lines deep to the structure?

    Answer: Reverberation artifact

    Reverberation artifact occurs when the sound beam bounces between two reflective interfaces, producing multiple parallel echogenic lines at regular intervals.

  4. On MRI, T2-weighted sequences are MOST useful for identifying:

    Answer: Fluid-filled structures and edema

    T2-weighted MRI sequences produce high signal (bright) from fluid, making them ideal for identifying edema, effusions, and fluid-filled structures.

  5. A 'string of pearls' sign on abdominal radiographs of a cat refers to:

    Answer: Small gas bubbles trapped between intestinal folds indicating ileus

    The 'string of pearls' sign describes small gas bubbles trapped between the valvulae conniventes in paralytic ileus, indicating functional obstruction.

  6. In a dog with suspected intervertebral disc disease, which myelographic finding confirms extradural compression?

    Answer: Thinning or deviation of the contrast column on one or both sides

    Extradural compression from a disc extrusion causes thinning or lateral deviation of the myelographic contrast column at the lesion level.

  7. On CT of the abdomen with IV contrast, hepatic nodules that are hyperattenuating in the arterial phase and isoattenuating in the portal venous phase are MOST suggestive of:

    Answer: Hepatocellular carcinoma

    Hepatocellular carcinoma is typically hypervascular, showing arterial phase enhancement that washes out to isoattenuation in the portal venous phase.