ARDMS Echo Echo Report Interpretation and Quality Assurance 1 — Questions and Answers
Question 1: Which echocardiographic artifact is caused by a strong reflector re-reflecting the ultrasound beam, creating a false image deeper in the field?
- Shadowing
- Reverberation artifact (Correct answer)
- Side-lobe artifact
- Refraction artifact
Correct answer: Reverberation artifact
Reverberation artifacts appear as equally spaced parallel lines deeper than the true reflector, caused by the beam bouncing between two strong interfaces.
Question 2: What does a 'technically limited' echocardiogram report indicate about image quality?
- All structures were fully visualized
- At least one key structure could not be adequately visualized, limiting diagnostic confidence (Correct answer)
- The study was performed suboptimally due to technologist error only
- The patient refused part of the examination
Correct answer: At least one key structure could not be adequately visualized, limiting diagnostic confidence
A 'technically limited' study means one or more cardiac structures were inadequately visualized, potentially affecting the completeness or accuracy of the report.
Question 3: Which ARDMS Echo exam domain focuses on the sonographer's ability to optimize image quality and perform measurements correctly?
- Patient care and safety
- Instrumentation and image optimization (Correct answer)
- Cardiac anatomy
- Electrocardiographic interpretation
Correct answer: Instrumentation and image optimization
Instrumentation and image optimization is a core ARDMS Echo exam domain, covering transducer selection, gain settings, depth, focus, and artifact recognition.
Question 4: Near-field clutter (NFC) is best reduced by:
- Increasing overall gain
- Decreasing frequency and increasing depth
- Using harmonic imaging and adjusting near-field compression (Correct answer)
- Increasing color Doppler scale
Correct answer: Using harmonic imaging and adjusting near-field compression
Harmonic imaging and near-field compression/reject controls reduce near-field clutter by suppressing low-amplitude fundamental frequency noise close to the transducer.
Question 5: When reviewing an echocardiogram report, an LV wall motion score index (WMSI) of 1.0 indicates:
- Severely abnormal global function
- Normal wall motion in all segments (Correct answer)
- Mild hypokinesis in one segment
- Akinesis in multiple segments
Correct answer: Normal wall motion in all segments
WMSI is calculated by dividing total wall motion score by number of segments; a score of 1.0 means all segments are normal (each scored 1 = normal).
Question 6: What is the primary purpose of an accreditation program such as the Intersocietal Accreditation Commission (IAC) for echocardiography laboratories?
- To certify individual sonographers
- To ensure echocardiography laboratories meet standards for quality patient care and diagnostic accuracy (Correct answer)
- To approve reimbursement codes for echo studies
- To credential physicians for valve replacement procedures
Correct answer: To ensure echocardiography laboratories meet standards for quality patient care and diagnostic accuracy
IAC accreditation verifies that echo labs meet defined standards for personnel qualifications, equipment, protocols, quality improvement, and safety.
ARDMS Echo Echo Report Interpretation and Quality Assurance 1
Which echocardiographic artifact is caused by a strong reflector re-reflecting the ultrasound beam, creating a false image deeper in the field?