Skip to main content
. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2020 Jan 16;67(9):2628–2637. doi: 10.1109/TBME.2020.2967033

Fig. 3.

Fig. 3.

(a) Reflection-calculated phase shifts (°) based on resonance method as a function of hydrophone-measured phase shifts (°) and (b) histogram of the phase differences in skull caps Sk1-4. (c) Reflection-calculated phase shifts (°) as a function of hydrophone-measured phase shifts (°) and (d) histogram of the phase differences in skull caps Sk1-4, excluding the measured spots with incident angle ≥ 5°. Solid and dotted lines denote 0° and ± 45° in phase differences between the two modalities, respectively.