Lateral resolution (ultrasound)

Last revised by Dr Tristan Skalina on 16 Feb 2022

Lateral resolution in ultrasound refers to the ability to discern two separate objects that are adjacent to each other. Lateral resolution is roughly four times worse than axial resolution in ultrasound. It is primarily determined by the width of the ultrasound beam.

Strategies to improve lateral resolution include increasing the number of lines per frame and setting multiple focal depths. When using multiple focal depths to improve lateral resolution there is generally a trade for reduced temporal resolution owing to the reduced frame rate.

See also


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