Harmonic imaging leads to :A: improved axial resolution but degraded lateral resolutionB: increased side lobe productionC: decreased image clutterD; decreased signal to noise ratio
C
Harmonic imaging is a technique used in ultrasound imaging to improve image quality. When sound waves pass through tissues, they interact with the tissue and produce higher frequency signals that are called harmonics. Harmonic imaging uses these higher frequency signals to create an image, which is of better quality than the one produced by standard ultrasound imaging.
Therefore, the correct answer to the given question is A: improved axial resolution but degraded lateral resolution. Harmonic imaging enhances the axial (depth) resolution by reducing the size of the ultrasound beam. However, the lateral (side-to-side) resolution is degraded because the harmonic signals are produced at a narrower angle than the fundamental signals. Other effects of harmonic imaging include reduced image clutter and increased signal-to-noise ratio. There is no increase in side lobe production associated with harmonic imaging.
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