AI Fracture Detection on X-Rays Quiz

Answers and explanations appear as you take the quiz.

1. Why are fractures often missed in emergency departments, according to the guide?
   • X-ray machines cannot show fractures
   • Initial decisions are often made by non-radiologists before a formal report, and subtle or second injuries are easy to overlook
   • Emergency doctors are not allowed to view X-rays
   • Fractures heal before the report is written
2. Which wrist bone does the guide name as a common problem area for missed fractures?
   • Scaphoid
   • Femur
   • Clavicle
   • Patella
3. What did the FDA authorize OsteoDetect for in 2018?
   • Hip replacement planning
   • Spine surgery robots
   • Detecting wrist fractures
   • Measuring bone density
4. What should a clinician do if the AI finds nothing but the patient has scaphoid tenderness?
   • Discharge with no follow-up
   • Delete the AI result
   • Repeat the same X-ray immediately until AI flags it
   • Still arrange follow-up, because some fractures are invisible on the first X-ray
5. Why do some fracture tools show two confidence levels, such as certain and doubtful?
   • To communicate uncertainty rather than a single yes-or-no flag
   • To double the price
   • Because regulators require exactly two colors
   • To hide false positives
6. Why should sensitivity be measured per fracture as well as per patient?
   • Per-patient numbers are always higher than 100 percent
   • A system can catch the main fracture but miss a second one
   • Per-fracture numbers are illegal to publish
   • Patients never have more than one fracture
7. How do fracture AI results usually reach clinicians?
   • By a separate email to the patient
   • On paper printed in the X-ray room
   • As extra DICOM images or structured reports returned to the PACS, sometimes with a worklist flag
   • Only through the vendor's website
8. Where does the guide say fracture AI performance often drops?
   • On clear displaced fractures of the forearm
   • On images from the machines used in training
   • On adults with obvious injuries
   • On subtle, non-displaced, pediatric and axial skeleton fractures