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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Ultrasonics. 2021 Aug 8;118:106549. doi: 10.1016/j.ultras.2021.106549

Fig. 7.

Fig. 7

Image quality evaluation of the pencil-lead phantom imaging results in resolution and contrast. Note that the FWHM value measured for the target located at 29 mm depth (5.05 ± 4.57) exceeds the display range.