Equipment Settings and Examination Technique
Equipment settings have a critical influence in breast ultrasound. The examination must be performed with a B-mode imager. A linear array transducer in the frequency range of 7.5–13 MHz is recommended. As the operating frequency increases, the resolution improves but the imaging depth decreases. The 7.5 MHz provides a good trade-off between the resolution and the depth (Fig. 11.1).
KeywordsFocal Zone Breast Ultrasound Linear Array Transducer Dark Shadow Color Doppler Signal
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