AI in Cardiology Quiz

Answers and explanations appear as you take the quiz.

1. What kind of recording does the Apple Watch ECG app produce according to Apple's documentation?
   • A waveform similar to a single-lead ECG
   • A full coronary CT angiogram
   • A cholesterol measurement from a blood sample
   • A twelve-lead ECG with twelve independent waveforms
2. What task did the 2019 Mayo AI-enabled ECG study evaluate?
   • Measuring blood cholesterol without a blood test
   • Performing cardiac surgery autonomously
   • Screening for low left-ventricular ejection fraction from ECG data
   • Detecting every heart condition from every normal-looking tracing
3. What physical information supplies the input to an ECG-based cardiac model?
   • Only the patient's appointment filename
   • Only the colors in an ultrasound image
   • Only the dimensions of a CT scanner's casing
   • A time series representing the heart's electrical activity
4. What does HeartFlow describe its FFRCT analysis as estimating from coronary CT-derived anatomy?
   • The patient's genetic sequence directly from image filenames
   • Coronary physiology using deep-learning and computational-fluid-dynamics methods
   • Every cardiac diagnosis without clinical interpretation
   • The exact time of every future cardiac event
5. What was compared in the 2023 blinded randomized echocardiography trial discussed here?
   • An AI prescription against automatic surgery in every patient
   • A wearable ECG against a cholesterol blood test
   • Initial AI and sonographer ejection-fraction assessments followed by cardiologist evaluation
   • Whether images could be eliminated from echocardiography
6. Why should a cardiac AI evaluation describe its patient population and clinical setting?
   • Performance in the studied data may not transfer unchanged to other patients or workflows
   • One reported score guarantees equal performance in every setting
   • Clinical setting cannot affect input quality
   • A model name alone specifies every intended use
7. Which capability does Apple's ECG app documentation explicitly exclude?
   • Recording an ECG waveform for the specified supported device
   • Detecting a heart attack
   • Offering its specified rhythm classification
   • Exporting a recording for review
8. How should an ECG-based low-ejection-fraction screening score be distinguished from an imaging measurement?
   • It directly measures every ventricular volume without imaging
   • It establishes that every CT-based result is interchangeable
   • It removes the need to understand the model's prediction target
   • It predicts a screening target from electrical data rather than directly measuring ventricular volumes from images