ITGSS Certified Technical Associate: Emerging Tech Practice Test

Which of these is NOT a recent improvement in breast ultrasound image quality?

1. Lower center frequencies in the 5 - 7 MHz range

2. Broadband transducer with increased scanner bandwidth

3. Increased sophistication of signal processing

4. Increased number of transducer elements

The correct answer is: Lower center frequencies in the 5 - 7 MHz range

The choice of lower center frequencies in the 5 - 7 MHz range is not considered a recent improvement in breast ultrasound image quality. In fact, lower frequencies typically result in poorer image resolution when assessing structures such as breast tissue, which benefits more from higher-frequency ultrasound waves. Higher center frequencies, often above 10 MHz, are typically utilized in breast ultrasound to achieve better spatial resolution, which allows for more detailed imaging of small lesions and subtle anomalies. Recent advancements in breast ultrasound technology have focused on increasing bandwidth—broadband transducers can utilize a wider range of frequencies to improve image quality, as well as enhancing signal processing techniques to refine the resulting images. Furthermore, a greater number of transducer elements can facilitate more complex imaging techniques, including 3D imaging and improving sensitivity and resolution. Quantum improvements in these areas enhance the overall diagnostic capability of breast ultrasound, contributing significantly to the clarity and quality of images obtained for clinical evaluation.