Radiology Quiz
Questions: 16 · 10 minutes
1. On an axial CT of the upper abdomen, a round vessel lies immediately anterior to the vertebral body and slightly left of midline. Which vessel is it most likely to be?
Abdominal aorta
Inferior vena cava
Portal vein
Splenic vein
2. By standard convention, you view an axial CT image as though looking from the patient’s feet toward the head. Which side of the patient appears on the left side of the image?
The patient’s right side
The patient’s left side
The patient’s anterior side
The patient’s posterior side
3. A portable AP chest radiograph makes the cardiac silhouette look larger than it did on an upright PA study. What best explains this difference?
AP imaging makes air less radiolucent
AP imaging reverses the positions of the heart and lungs
PA imaging magnifies the mediastinum more than AP imaging
The heart is magnified because it is farther from the detector
4. On shoulder imaging, which part of the scapula forms the shallow socket that articulates with the humeral head?
Acromion
Glenoid fossa
Scapular spine
Coracoid process
5. A wrist radiograph shows a fracture in the proximal row of carpal bones on the thumb side of the wrist. Which bone is most likely fractured?
Triquetrum
Pisiform
Scaphoid
Hamate
6. A frontal chest radiograph shows loss of the normally sharp right heart border. Using the silhouette sign, which lung region is most likely involved?
Right upper lobe apex
Right middle lobe
Right lower lobe posterior segment
Left lower lobe
7. On a non-contrast head CT performed soon after an intracranial hemorrhage, how does acute blood usually appear relative to normal brain tissue?
Hypodense
Identical to cerebrospinal fluid
Hyperdense
Invisible without intravenous contrast
8. During ultrasound, an echogenic focus in the gallbladder produces a clean dark band deep to it. What phenomenon is being described?
Posterior acoustic enhancement
Posterior acoustic shadowing
Mirror-image artifact
Reverberation within fluid
9. On a standard non-fat-suppressed T1-weighted MRI, which tissue is typically relatively bright?
Air
Cortical bone
Fat
Rapidly flowing blood
10. A cerebral infarct predominantly affects the lateral surface of a cerebral hemisphere, including regions serving the face and upper limb. Which arterial territory is most likely involved?
Anterior cerebral artery
Posterior cerebral artery
Basilar artery
Middle cerebral artery
11. A head CT describes a biconvex, lens-shaped extra-axial collection that is limited by cranial sutures. Which type of hemorrhage has this classic appearance?
Subarachnoid hemorrhage
Intraparenchymal hemorrhage
Subdural hematoma
Epidural hematoma
12. An upright chest radiograph shows a crescent of gas beneath the right hemidiaphragm where the liver normally creates solid soft-tissue density. What does this most strongly suggest?
Right pleural effusion
Free intraperitoneal gas
Gas within a normal stomach bubble
Elevation of the right diaphragm
13. Which cardiac chamber normally forms most of the right heart border on a frontal chest radiograph?
Right atrium
Left atrium
Right ventricle
Left ventricle
14. Why does the right hemidiaphragm commonly sit slightly higher than the left on an upright chest radiograph?
The heart elevates it from the mediastinum
The stomach elevates it after meals
The spleen supports it from below
The liver lies directly beneath it
15. A chest radiograph shows a thin visceral pleural line with no lung markings beyond it toward the chest wall. Which finding does this describe?
Pleural effusion
Lobar collapse
Pneumothorax
Pulmonary edema
16. At the renal hilum, the main structures are classically arranged from anterior to posterior as renal vein, renal artery, and renal pelvis. Which structure therefore occupies the middle position?
Renal artery
Renal pelvis
Renal vein
Ureter