ITGSS Certified Technical Associate: Emerging Tech Practice Test

Harmonic images are described as:

1. Brighter with more side lobes

2. Cleaner with fewer side lobe and reverberation artefacts.

3. Darker with more contrast

4. Having more contrast and fewer side lobes

The correct answer is: Cleaner with fewer side lobe and reverberation artefacts.

Harmonic images are characterized by a cleaner appearance with fewer side lobe effects and reduced reverberation artifacts. This is due to the way harmonic imaging works, as it focuses on the higher frequency harmonics generated by the tissue in response to the ultrasound waves. By utilizing these harmonics, the imaging process emphasizes the desired structures while minimizing unwanted noise and clutter typical in conventional imaging methods. In harmonic imaging, the technique allows for the suppression of the fundamental frequency, which in turn decreases the side lobes that can obscure images. The reduction in reverberation and artifacts provides a clearer view of the anatomical structures being examined. This clarity is crucial in various clinical applications, where precise imaging is necessary for accurate diagnosis and treatment planning. Therefore, the emphasis on a cleaner image with fewer artifacts effectively highlights the advantages of harmonic imaging.